主页 / ubuntu / 问题

问题[hdmi](ubuntu)

Martin Hope
Abe Karplus
Asked: 2023-09-12 09:11:38 +0800 CST
  • 5

我正在尝试使用运行 Ubuntu 22.04 的迷你 PC（带有 Intel N95 CPU 的 Trigkey G4）作为家庭影院 PC，通过 HDMI 2.1 电缆连接到我的海信 U6G 电视。它可以连接并能够以 3840x2160 的完整分辨率显示，但播放视频时（在 VLC 和 Firefox、窗口和全屏、KDE ​​Plasma 和 Gnome 中）会出现严重的屏幕撕裂。在尝试调试此问题时，我注意到 xrandr 提供了有关可用模式的不完整且不正确的信息：

$ xrandr --verbose
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 3840 x 2160, current 3840 x 2160, maximum 3840 x 2160
default connected primary 3840x2160+0+0 (0x522) normal (normal) 0mm x 0mm
    Identifier: 0x521
    Timestamp:  19564
    Subpixel:   unknown
    Clones:    
    CRTC:       0
    CRTCs:      0
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    _MUTTER_PRESENTATION_OUTPUT: 0 
    non-desktop: 0 
        supported: 0, 1
  3840x2160 (0x522) 729.907MHz *current
        h: width  3840 start    0 end    0 total 3840 skew    0 clock 190.08KHz
        v: height 2160 start    0 end    0 total 2160           clock  88.00Hz

请注意 88.00 Hz 时钟，而该电视仅被列为支持 60 Hz。在我看来，以错误的速率发送帧可能是造成撕裂的原因似乎是合理的。另请注意缺少 EDID 信息 — 当我尝试运行时get-edid，它失败了Couldn't find an accessible EDID on this computer.

为了排除电视本身或电缆的问题，我将它连接到我的旧笔记本电脑（也运行 Ubuntu 22.04），它可以毫无问题地显示视频而不撕裂，并且能够毫无问题地读取 EDID。我尝试复制好的 EDID 并通过命令行选项将其提供给内核drm.edid_firmware，但这没有明显的效果。

此时，我已经尝试了我可以在网上找到的大部分建议 - 将 a20-intel.conf设置TearFree为 true 没有效果，设置i915.alpha_supportornomodeset或 也没有效果GRUB_GFXMODE，并且xrandr不允许我更改模式。

我还可以尝试什么来获得流畅的视频输出？

hdmi
Martin Hope
ekiefer
Asked: 2020-12-06 09:42:45 +0800 CST
  • 1

在我全新的 Acer Aspire 5 笔记本电脑上安装 Ubuntu 20.04 和 Windows 后，很多事情都无法正常工作。在安装过程中，我选中了安装第三方驱动程序的复选框，所以我希望这不会导致这种情况发生。但基本上：

  • 我的外接显示器通过 HDMI 插入后根本无法识别。这是一个优派显示器。
  • 我的声音在我的笔记本电脑上不起作用，它显示为“虚拟输出”。蓝牙确实可以通过我的耳机工作
  • 触摸板（带有指纹扫描仪）也不起作用

任何帮助，将不胜感激。在解决这个问题之前，我基本上被迫使用 Windows，因为这对我的工作站来说真的很不方便。

干杯!

sound multiple-monitors touchpad hdmi 20.04
Martin Hope
cpederson
Asked: 2020-11-24 23:47:26 +0800 CST
  • 5

所以我在笔记本电脑上连接了一台惠普显示器作为外接显示器。显示器的文档说使用他们提供的 HDMI 电缆的最佳分辨率是 2560x1440 @ 60 Hz。当我启动 Windows 时，我可以获得该分辨率。但无论我尝试什么，我都无法在 Ubuntu 20.04 中获得该分辨率。

我的笔记本电脑上没有 DisplayPort 连接，所以我使用随附的 HDMI 电缆。

我尝试使用 设置分辨率xrandr --admode，但新模式失败：

$ cvt 2560 1440 60
# 2560x1440 59.96 Hz (CVT 3.69M9) hsync: 89.52 kHz; pclk: 312.25 MHz
Modeline "2560x1440_60.00"  312.25  2560 2752 3024 3488  1440 1443 1448 1493 -hsync +vsync
$ xrandr --newmode "2560x1440" 312.25  2560 2752 3024 3488  1440 1443 1448 1493 -hsync +vsync
$ xrandr --addmode XWAYLAND1 2560x1440
$ xrandr --output XWAYLAND1 --mode 2560x1440
xrandr: Configure crtc 1 failed

这是输出xrandr --verbose：

Screen 0: minimum 16 x 16, current 3840 x 1441, maximum 32767 x 32767
XWAYLAND0 connected 1920x1080+1920+361 (0x24) normal (normal left inverted right x axis y axis) 290mm x 170mm
    Identifier: 0x21
    Timestamp:  20221
    Subpixel:   unknown
    Gamma:      1.0:1.0:1.0
    Brightness: 0.0
    Clones:    
    CRTC:       0
    CRTCs:      0
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    non-desktop: 0 
        supported: 0, 1
  1920x1080 (0x24) 173.000MHz -HSync +VSync *current +preferred
        h: width  1920 start 2048 end 2248 total 2576 skew    0 clock  67.16KHz
        v: height 1080 start 1083 end 1088 total 1120           clock  59.96Hz
XWAYLAND1 connected 1920x1200+0+0 (0x25) normal (normal left inverted right x axis y axis) 600mm x 340mm
    Identifier: 0x23
    Timestamp:  20221
    Subpixel:   unknown
    Gamma:      1.0:1.0:1.0
    Brightness: 0.0
    Clones:    
    CRTC:       1
    CRTCs:      1
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    non-desktop: 0 
        supported: 0, 1
  1920x1200 (0x25) 193.250MHz -HSync +VSync *current +preferred
        h: width  1920 start 2056 end 2256 total 2592 skew    0 clock  74.56KHz
        v: height 1200 start 1203 end 1209 total 1245           clock  59.88Hz

这是输出lspci -k | grep -EA3 'VGA|3D|Display'

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
    DeviceName:  Onboard IGD
    Subsystem: Dell HD Graphics 620
    Kernel driver in use: i915
--
00:13.0 Non-VGA unclassified device: Intel Corporation Sunrise Point-LP Integrated Sensor Hub (rev 21)
    Subsystem: Dell Sunrise Point-LP Integrated Sensor Hub
    Kernel driver in use: intel_ish_ipc
    Kernel modules: intel_ish_ipc

并且glxinfo | grep -i vendor：

server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
    Vendor: Intel (0x8086)
OpenGL vendor string: Intel

我正在使用 Mesa Intel® HD Graphics 620 (KBL GT2) 卡运行 Ubuntu 20.04.1 LTS。Gnome 版本是 3.35.3，使用 Wayland 作为窗口系统。

关于如何让显示器显示最佳分辨率的任何建议？

编辑 1

我尝试切换到 Xorg，而不是 Wayland。我仍然遇到同样的问题。如果我启动到 Xorg，以下是相关行xrandr --verbose：

HDMI-1 connected 1920x1200+1920+0 (0xa1) normal (normal left inverted right x axis y axis) 597mm x 336mm
    Identifier: 0x43
    Timestamp:  76498
    Subpixel:   unknown
    Gamma:      1.0:1.0:1.0
    Brightness: 1.0
    Clones:    
    CRTC:       1
    CRTCs:      0 1 2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    EDID: 
        00ffffffffffff00220e753401010101
        091e0103803c22782a9325a9544d9e25
        0c5054a10800d1c081c081809500a9c0
        a940b300d100565e00a0a0a029503020
        350055502100001a000000fd00323c1e
        5a19000a202020202020000000fc0048
        502045323733710a20202020000000ff
        0036434d303039303939430a202001cc
        020319b149101f041303120211016703
        0c0010000032e2002b023a801871382d
        40582c450055502100001e023a80d072
        382d40102c458055502100001e565e00
        a0a0a029503020350055502100001a00
        00000000000000000000000000000000
        00000000000000000000000000000000
        00000000000000000000000000000023
    _MUTTER_PRESENTATION_OUTPUT: 0 
    HDCP Content Type: HDCP Type0 
        supported: HDCP Type0, HDCP Type1
    Content Protection: Undesired 
        supported: Undesired, Desired, Enabled
    max bpc: 12 
        range: (8, 12)
    content type: No Data 
        supported: No Data, Graphics, Photo, Cinema, Game
    Colorspace: Default 
        supported: Default, SMPTE_170M_YCC, BT709_YCC, XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, opRGB, BT2020_CYCC, BT2020_RGB, BT2020_YCC, DCI-P3_RGB_D65, DCI-P3_RGB_Theater
    aspect ratio: Automatic 
        supported: Automatic, 4:3, 16:9
    Broadcast RGB: Automatic 
        supported: Automatic, Full, Limited 16:235
    audio: auto 
        supported: force-dvi, off, auto, on
    link-status: Good 
        supported: Good, Bad
    CONNECTOR_ID: 92 
        supported: 92
    non-desktop: 0 
        range: (0, 1)
  1920x1200 (0xa1) 154.000MHz +HSync -VSync *current
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock  74.04KHz
        v: height 1200 start 1203 end 1209 total 1235           clock  59.95Hz
  1920x1080 (0xa2) 148.500MHz +HSync +VSync
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.50KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  60.00Hz
  1920x1080 (0xa3) 148.500MHz +HSync +VSync
        h: width  1920 start 2448 end 2492 total 2640 skew    0 clock  56.25KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  50.00Hz
  1920x1080 (0xa4) 148.352MHz +HSync +VSync
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.43KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  59.94Hz
  1600x1200 (0xa5) 162.000MHz +HSync +VSync
        h: width  1600 start 1664 end 1856 total 2160 skew    0 clock  75.00KHz
        v: height 1200 start 1201 end 1204 total 1250           clock  60.00Hz
  1680x1050 (0x4b) 119.000MHz +HSync -VSync
        h: width  1680 start 1728 end 1760 total 1840 skew    0 clock  64.67KHz
        v: height 1050 start 1053 end 1059 total 1080           clock  59.88Hz
  1600x900 (0xa6) 108.000MHz +HSync +VSync
        h: width  1600 start 1624 end 1704 total 1800 skew    0 clock  60.00KHz
        v: height  900 start  901 end  904 total 1000           clock  60.00Hz
  1280x1024 (0x52) 108.000MHz +HSync +VSync
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock  63.98KHz
        v: height 1024 start 1025 end 1028 total 1066           clock  60.02Hz
  1440x900 (0xa7) 88.750MHz +HSync -VSync
        h: width  1440 start 1488 end 1520 total 1600 skew    0 clock  55.47KHz
        v: height  900 start  903 end  909 total  926           clock  59.90Hz
  1280x720 (0xa8) 74.250MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  45.00KHz
        v: height  720 start  725 end  730 total  750           clock  60.00Hz
  1280x720 (0xa9) 74.250MHz +HSync +VSync
        h: width  1280 start 1720 end 1760 total 1980 skew    0 clock  37.50KHz
        v: height  720 start  725 end  730 total  750           clock  50.00Hz
  1280x720 (0xaa) 74.176MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  44.96KHz
        v: height  720 start  725 end  730 total  750           clock  59.94Hz
  1024x768 (0x67) 65.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
        v: height  768 start  771 end  777 total  806           clock  60.00Hz
  800x600 (0x76) 40.000MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock  37.88KHz
        v: height  600 start  601 end  605 total  628           clock  60.32Hz
  720x576 (0xab) 27.000MHz -HSync -VSync
        h: width   720 start  732 end  796 total  864 skew    0 clock  31.25KHz
        v: height  576 start  581 end  586 total  625           clock  50.00Hz
  720x480 (0xac) 27.027MHz -HSync -VSync
        h: width   720 start  736 end  798 total  858 skew    0 clock  31.50KHz
        v: height  480 start  489 end  495 total  525           clock  60.00Hz
  720x480 (0xad) 27.000MHz -HSync -VSync
        h: width   720 start  736 end  798 total  858 skew    0 clock  31.47KHz
        v: height  480 start  489 end  495 total  525           clock  59.94Hz
  640x480 (0xae) 25.200MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.50KHz
        v: height  480 start  490 end  492 total  525           clock  60.00Hz
  640x480 (0x85) 25.175MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.47KHz
        v: height  480 start  490 end  492 total  525           clock  59.94Hz
  720x400 (0xaf) 28.320MHz -HSync +VSync
        h: width   720 start  738 end  846 total  900 skew    0 clock  31.47KHz
        v: height  400 start  412 end  414 total  449           clock  70.08Hz

编辑2：

在grep 2560日志中查看后，我查看/var/log/syslog并发现以下几行：

Nov 25 13:57:04 laptop systemd[1606]: Starting GNOME Shell on X11...                        
Nov 25 13:57:04 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): EDID vendor "BOE"
Nov 25 13:57:04 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): Printing DDC gath
Nov 25 13:57:04 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): Modeline "1920x10
Nov 25 13:57:04 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): Modeline "1920x10
Nov 25 13:57:04 laptop /usr/lib/gdm3/gdm-x-session[1696]: (--) modeset(0): HDMI max TMDS fre
Nov 25 13:57:04 laptop gnome-shell[1853]: Failed to use stored monitor configuration: Invalid mode 2560x1440 (59.864616) for monitor 'HPN HP E273q'

这就是启动时发生的事情。如果我尝试通过更改分辨率xrandr，我会得到：

Nov 25 13:09:47 laptop gnome-shell[1853]: Failed to use stored monitor configuration: Invalid mode 2560x1440 (59.864616) for monitor 'HPN HP E273q'                                                   
Nov 25 13:09:53 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): Allocate new frame buffer 4480x1440 stride                                                                                 
Nov 25 13:09:53 laptop /usr/lib/gdm3/gdm-x-session[1696]: (EE) modeset(0): failed to set mode: Invalid argument                                                                                       
Nov 25 13:09:53 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): Allocate new frame buffer 3840x1200 stride                                                                                 
Nov 25 13:09:54 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): EDID vendor "BOE", prod id 1703                                                                                            
Nov 25 13:09:54 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): Printing DDC gathered Modelines:                                                                                           
Nov 25 13:09:54 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): Modeline "1920x1080"x0.0  138.78  1920 1968 2000 2080  1080 1083 1088 1112 +hsync -vsync (66.7 kHz eP)                     
Nov 25 13:09:54 laptop /usr/lib/gdm3/gdm-x-session[1696]: (II) modeset(0): Modeline "1920x1080"x0.0  111.02  1920 1968 2000 2080  1080 1083 1088 1112 +hsync -vsync (53.4 kHz e)                      
Nov 25 13:09:54 laptop /usr/lib/gdm3/gdm-x-session[1696]: (--) modeset(0): HDMI max TMDS frequency 250000KHz

编辑3：

我可以在 30 Hz 下获得 2560x1440 以使用xrandr. 只是 60.00（或 55、或 59.9 等）不起作用。

multiple-monitors xrandr display-resolution intel-graphics hdmi
Martin Hope
OnurA
Asked: 2020-11-24 08:44:35 +0800 CST
  • 0

在尝试了这里的建议后，这并没有解决我的问题，我决定问这个问题：

我的 Thinkpad T14 上有一个新安装的 Ubuntu 18.04 LTS，但我无法通过 HDMI 电缆连接到外接显示器。我尝试了 2 个不同的显示器，所以问题的根源应该在笔记本电脑端。

有人可以帮我解决吗？提前致谢！

lenovo thinkpad hdmi
Martin Hope
CRoemheld
Asked: 2020-11-16 10:36:21 +0800 CST
  • 1

几天前我第一次安装了 Ubuntu（20.04.1 LTS）。我目前担心的是xrandr/arandr以及gnome-control-center不显示我的第二台显示器通过 HDMI 插入。以下是我当前系统的一些信息和屏幕截图：

在此处输入图像描述

inxi：

$ inxi -G
Graphics:  Device-1: Intel driver: N/A 
           Device-2: NVIDIA GP107M [GeForce MX350] driver: nvidia v: 450.80.02 
           Display: x11 server: X.Org 1.20.8 driver: fbdev,nvidia unloaded: modesetting,nouveau,vesa 
           resolution: 1920x1080~77Hz 
           OpenGL: renderer: llvmpipe (LLVM 10.0.0 256 bits) v: 3.3 Mesa 20.0.8

xrandr：

$ xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
   1920x1080     77.00*

我在 Intel i7-1165G7 和 NVIDIA GeForce MX350 显卡上运行 Ubuntu。在 上arandr，该Outputs选项卡仅包含一个带有“默认”屏幕的下拉字段（即使我希望使用不同的名称，例如“eDP-1”）。另外，消息

xrandr: Failed to get size of gamma for output default

这是我以前在旧笔记本电脑上安装 Debian 时没有看到的。这与我的问题有关吗？是否有可能以某种方式在我的笔记本电脑上启用 HDMI 输出？

multiple-monitors nvidia display hdmi
Martin Hope
JKHA
Asked: 2020-10-21 05:51:50 +0800 CST
  • 0

我正在尝试将两台外接显示器连接为带有集线器的连接显示器，一台使用 HDMI，另一台使用 VGA。我的配置是：

  • 带有戴尔 XPS 7390 的 Ubuntu 20.04。
  • 显卡是 Mesa Intel UHD Graphics (CML GT2)
  • 集线器戴尔 DA300

屏幕和电缆都可以工作，因为我目前可以将它们都用作一个外接显示器，我的问题是使用集线器的 VGA 和 HDMI 输出同时将它们同时用于三个屏幕。当我把它们都插上时，其中一个是黑暗的，并说“没有信号”。

我对域了解不多，但我知道我可以xrandr在终端上输入：

Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 16384 x 16384
eDP-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 293mm x 162mm
   1920x1080     60.03*+  60.01    59.97    59.96    59.93    48.03  
   1680x1050     59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98  
   1600x900      59.99    59.94    59.95    59.82  
   1280x1024     60.02  
   1440x900      59.89  
   1400x900      59.96    59.88  
   1280x960      60.00  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1360x768      59.80    59.96  
   1280x800      59.99    59.97    59.81    59.91  
   1152x864      60.00  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   960x540       59.96    59.99    59.63    59.82  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   800x512       60.17  
   700x525       59.98  
   800x450       59.95    59.82  
   640x512       60.02  
   720x450       59.89  
   700x450       59.96    59.88  
   640x480       60.00    59.94  
   720x405       59.51    58.99  
   684x384       59.88    59.85  
   680x384       59.80    59.96  
   640x400       59.88    59.98  
   576x432       60.06  
   640x360       59.86    59.83    59.84    59.32  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.63    59.82  
   400x300       60.32    56.34  
   432x243       59.92    59.57  
   320x240       60.05  
   360x202       59.51    59.13  
   320x180       59.84    59.32  
DP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm
   1920x1080     60.00*+  50.00    59.94  
   1920x1080i    60.00    50.00    59.94  
   1680x1050     59.88  
   1280x1024     60.02  
   1440x900      59.90  
   1280x960      60.00  
   1280x720      60.00    50.00    59.94  
   1024x768      60.00  
   800x600       60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       60.00    59.94  
DP-2 disconnected (normal left inverted right x axis y axis)

xrandr -verbose更多信息：

Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 16384 x 16384
eDP-1 connected 1920x1080+1920+0 (0x46) normal (normal left inverted right x axis y axis) 293mm x 162mm
    Identifier: 0x42
    Timestamp:  1374378
    Subpixel:   unknown
    Gamma:      1.0:1.0:1.0
    Brightness: 1.0
    Clones:    
    CRTC:       1
    CRTCs:      1 0 2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    _MUTTER_PRESENTATION_OUTPUT: 0 
    EDID: 
        00ffffffffffff0006af2d5b00000000
        001c0104a51d107803ee95a3544c9926
        0f505400000001010101010101010101
        010101010101b43780a070383e403a2a
        350025a21000001a902c80a070383e40
        3a2a350025a21000001a000000fe0030
        36564736814231333348414e00000000
        00024122a8011100000a010a202000f0
    scaling mode: Full aspect 
        supported: Full, Center, Full aspect
    max bpc: 12 
        range: (6, 12)
    Broadcast RGB: Automatic 
        supported: Automatic, Full, Limited 16:235
    link-status: Good 
        supported: Good, Bad
    CONNECTOR_ID: 86 
        supported: 86
    non-desktop: 0 
        range: (0, 1)
  1920x1080 (0x46) 142.600MHz +HSync -VSync *current +preferred
        h: width  1920 start 1978 end 2020 total 2080 skew    0 clock  68.56KHz
        v: height 1080 start 1083 end 1088 total 1142           clock  60.03Hz
  1920x1080 (0x47) 356.375MHz -HSync +VSync DoubleScan
        h: width  1920 start 2080 end 2288 total 2656 skew    0 clock 134.18KHz
        v: height 1080 start 1081 end 1084 total 1118           clock  60.01Hz
  1920x1080 (0x48) 266.500MHz +HSync -VSync DoubleScan
        h: width  1920 start 1944 end 1960 total 2000 skew    0 clock 133.25KHz
        v: height 1080 start 1081 end 1084 total 1111           clock  59.97Hz
  1920x1080 (0x49) 173.000MHz -HSync +VSync
        h: width  1920 start 2048 end 2248 total 2576 skew    0 clock  67.16KHz
        v: height 1080 start 1083 end 1088 total 1120           clock  59.96Hz
  1920x1080 (0x4a) 138.500MHz +HSync -VSync
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock  66.59KHz
        v: height 1080 start 1083 end 1088 total 1111           clock  59.93Hz
  1920x1080 (0x4b) 114.080MHz +HSync -VSync
        h: width  1920 start 1978 end 2020 total 2080 skew    0 clock  54.85KHz
        v: height 1080 start 1083 end 1088 total 1142           clock  48.03Hz
  1680x1050 (0x4c) 146.250MHz -HSync +VSync
        h: width  1680 start 1784 end 1960 total 2240 skew    0 clock  65.29KHz
        v: height 1050 start 1053 end 1059 total 1089           clock  59.95Hz
  1680x1050 (0x4d) 119.000MHz +HSync -VSync
        h: width  1680 start 1728 end 1760 total 1840 skew    0 clock  64.67KHz
        v: height 1050 start 1053 end 1059 total 1080           clock  59.88Hz
  1600x1024 (0x4e) 103.125MHz +HSync +VSync
        h: width  1600 start 1600 end 1656 total 1664 skew    0 clock  61.97KHz
        v: height 1024 start 1024 end 1029 total 1030           clock  60.17Hz
  1400x1050 (0x4f) 122.000MHz +HSync +VSync
        h: width  1400 start 1488 end 1640 total 1880 skew    0 clock  64.89KHz
        v: height 1050 start 1052 end 1064 total 1082           clock  59.98Hz
  1600x900 (0x50) 246.000MHz -HSync +VSync DoubleScan
        h: width  1600 start 1728 end 1900 total 2200 skew    0 clock 111.82KHz
        v: height  900 start  901 end  904 total  932           clock  59.99Hz
  1600x900 (0x51) 186.500MHz +HSync -VSync DoubleScan
        h: width  1600 start 1624 end 1640 total 1680 skew    0 clock 111.01KHz
        v: height  900 start  901 end  904 total  926           clock  59.94Hz
  1600x900 (0x52) 118.250MHz -HSync +VSync
        h: width  1600 start 1696 end 1856 total 2112 skew    0 clock  55.99KHz
        v: height  900 start  903 end  908 total  934           clock  59.95Hz
  1600x900 (0x53) 97.500MHz +HSync -VSync
        h: width  1600 start 1648 end 1680 total 1760 skew    0 clock  55.40KHz
        v: height  900 start  903 end  908 total  926           clock  59.82Hz
  1280x1024 (0x54) 108.000MHz +HSync +VSync
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock  63.98KHz
        v: height 1024 start 1025 end 1028 total 1066           clock  60.02Hz
  1440x900 (0x55) 106.500MHz -HSync +VSync
        h: width  1440 start 1520 end 1672 total 1904 skew    0 clock  55.93KHz
        v: height  900 start  903 end  909 total  934           clock  59.89Hz
  1400x900 (0x56) 103.500MHz -HSync +VSync
        h: width  1400 start 1480 end 1624 total 1848 skew    0 clock  56.01KHz
        v: height  900 start  903 end  913 total  934           clock  59.96Hz
  1400x900 (0x57) 86.500MHz +HSync -VSync
        h: width  1400 start 1448 end 1480 total 1560 skew    0 clock  55.45KHz
        v: height  900 start  903 end  913 total  926           clock  59.88Hz
  1280x960 (0x58) 108.000MHz +HSync +VSync
        h: width  1280 start 1376 end 1488 total 1800 skew    0 clock  60.00KHz
        v: height  960 start  961 end  964 total 1000           clock  60.00Hz
  1440x810 (0x59) 198.125MHz -HSync +VSync DoubleScan
        h: width  1440 start 1548 end 1704 total 1968 skew    0 clock 100.67KHz
        v: height  810 start  811 end  814 total  839           clock  60.00Hz
  1440x810 (0x5a) 151.875MHz +HSync -VSync DoubleScan
        h: width  1440 start 1464 end 1480 total 1520 skew    0 clock  99.92KHz
        v: height  810 start  811 end  814 total  833           clock  59.97Hz
  1368x768 (0x5b) 85.250MHz -HSync +VSync
        h: width  1368 start 1440 end 1576 total 1784 skew    0 clock  47.79KHz
        v: height  768 start  771 end  781 total  798           clock  59.88Hz
  1368x768 (0x5c) 72.250MHz +HSync -VSync
        h: width  1368 start 1416 end 1448 total 1528 skew    0 clock  47.28KHz
        v: height  768 start  771 end  781 total  790           clock  59.85Hz
  1360x768 (0x5d) 84.750MHz -HSync +VSync
        h: width  1360 start 1432 end 1568 total 1776 skew    0 clock  47.72KHz
        v: height  768 start  771 end  781 total  798           clock  59.80Hz
  1360x768 (0x5e) 72.000MHz +HSync -VSync
        h: width  1360 start 1408 end 1440 total 1520 skew    0 clock  47.37KHz
        v: height  768 start  771 end  781 total  790           clock  59.96Hz
  1280x800 (0x5f) 174.250MHz -HSync +VSync DoubleScan
        h: width  1280 start 1380 end 1516 total 1752 skew    0 clock  99.46KHz
        v: height  800 start  801 end  804 total  829           clock  59.99Hz
  1280x800 (0x60) 134.250MHz +HSync -VSync DoubleScan
        h: width  1280 start 1304 end 1320 total 1360 skew    0 clock  98.71KHz
        v: height  800 start  801 end  804 total  823           clock  59.97Hz
  1280x800 (0x61) 83.500MHz -HSync +VSync
        h: width  1280 start 1352 end 1480 total 1680 skew    0 clock  49.70KHz
        v: height  800 start  803 end  809 total  831           clock  59.81Hz
  1280x800 (0x62) 71.000MHz +HSync -VSync
        h: width  1280 start 1328 end 1360 total 1440 skew    0 clock  49.31KHz
        v: height  800 start  803 end  809 total  823           clock  59.91Hz
  1152x864 (0x63) 81.620MHz -HSync +VSync
        h: width  1152 start 1216 end 1336 total 1520 skew    0 clock  53.70KHz
        v: height  864 start  865 end  868 total  895           clock  60.00Hz
  1280x720 (0x64) 156.125MHz -HSync +VSync DoubleScan
        h: width  1280 start 1376 end 1512 total 1744 skew    0 clock  89.52KHz
        v: height  720 start  721 end  724 total  746           clock  60.00Hz
  1280x720 (0x65) 120.750MHz +HSync -VSync DoubleScan
        h: width  1280 start 1304 end 1320 total 1360 skew    0 clock  88.79KHz
        v: height  720 start  721 end  724 total  740           clock  59.99Hz
  1280x720 (0x66) 74.500MHz -HSync +VSync
        h: width  1280 start 1344 end 1472 total 1664 skew    0 clock  44.77KHz
        v: height  720 start  723 end  728 total  748           clock  59.86Hz
  1280x720 (0x67) 63.750MHz +HSync -VSync
        h: width  1280 start 1328 end 1360 total 1440 skew    0 clock  44.27KHz
        v: height  720 start  723 end  728 total  741           clock  59.74Hz
  1024x768 (0x68) 133.475MHz -HSync +VSync DoubleScan
        h: width  1024 start 1100 end 1212 total 1400 skew    0 clock  95.34KHz
        v: height  768 start  768 end  770 total  794           clock  60.04Hz
  1024x768 (0x69) 65.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
        v: height  768 start  771 end  777 total  806           clock  60.00Hz
  960x720 (0x6a) 117.000MHz -HSync +VSync DoubleScan
        h: width   960 start 1024 end 1128 total 1300 skew    0 clock  90.00KHz
        v: height  720 start  720 end  722 total  750           clock  60.00Hz
  928x696 (0x6b) 109.150MHz -HSync +VSync DoubleScan
        h: width   928 start  976 end 1088 total 1264 skew    0 clock  86.35KHz
        v: height  696 start  696 end  698 total  719           clock  60.05Hz
  896x672 (0x6c) 102.400MHz -HSync +VSync DoubleScan
        h: width   896 start  960 end 1060 total 1224 skew    0 clock  83.66KHz
        v: height  672 start  672 end  674 total  697           clock  60.01Hz
  1024x576 (0x6d) 98.500MHz -HSync +VSync DoubleScan
        h: width  1024 start 1092 end 1200 total 1376 skew    0 clock  71.58KHz
        v: height  576 start  577 end  580 total  597           clock  59.95Hz
  1024x576 (0x6e) 78.375MHz +HSync -VSync DoubleScan
        h: width  1024 start 1048 end 1064 total 1104 skew    0 clock  70.99KHz
        v: height  576 start  577 end  580 total  592           clock  59.96Hz
  1024x576 (0x6f) 46.500MHz -HSync +VSync
        h: width  1024 start 1064 end 1160 total 1296 skew    0 clock  35.88KHz
        v: height  576 start  579 end  584 total  599           clock  59.90Hz
  1024x576 (0x70) 42.000MHz +HSync -VSync
        h: width  1024 start 1072 end 1104 total 1184 skew    0 clock  35.47KHz
        v: height  576 start  579 end  584 total  593           clock  59.82Hz
  960x600 (0x71) 96.625MHz -HSync +VSync DoubleScan
        h: width   960 start 1028 end 1128 total 1296 skew    0 clock  74.56KHz
        v: height  600 start  601 end  604 total  622           clock  59.93Hz
  960x600 (0x72) 77.000MHz +HSync -VSync DoubleScan
        h: width   960 start  984 end 1000 total 1040 skew    0 clock  74.04KHz
        v: height  600 start  601 end  604 total  617           clock  60.00Hz
  960x540 (0x73) 86.500MHz -HSync +VSync DoubleScan
        h: width   960 start 1024 end 1124 total 1288 skew    0 clock  67.16KHz
        v: height  540 start  541 end  544 total  560           clock  59.96Hz
  960x540 (0x74) 69.250MHz +HSync -VSync DoubleScan
        h: width   960 start  984 end 1000 total 1040 skew    0 clock  66.59KHz
        v: height  540 start  541 end  544 total  555           clock  59.99Hz
  960x540 (0x75) 40.750MHz -HSync +VSync
        h: width   960 start  992 end 1088 total 1216 skew    0 clock  33.51KHz
        v: height  540 start  543 end  548 total  562           clock  59.63Hz
  960x540 (0x76) 37.250MHz +HSync -VSync
        h: width   960 start 1008 end 1040 total 1120 skew    0 clock  33.26KHz
        v: height  540 start  543 end  548 total  556           clock  59.82Hz
  800x600 (0x77) 81.000MHz +HSync +VSync DoubleScan
        h: width   800 start  832 end  928 total 1080 skew    0 clock  75.00KHz
        v: height  600 start  600 end  602 total  625           clock  60.00Hz
  800x600 (0x78) 40.000MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock  37.88KHz
        v: height  600 start  601 end  605 total  628           clock  60.32Hz
  800x600 (0x79) 36.000MHz +HSync +VSync
        h: width   800 start  824 end  896 total 1024 skew    0 clock  35.16KHz
        v: height  600 start  601 end  603 total  625           clock  56.25Hz
  840x525 (0x7a) 73.125MHz -HSync +VSync DoubleScan
        h: width   840 start  892 end  980 total 1120 skew    0 clock  65.29KHz
        v: height  525 start  526 end  529 total  544           clock  60.01Hz
  840x525 (0x7b) 59.500MHz +HSync -VSync DoubleScan
        h: width   840 start  864 end  880 total  920 skew    0 clock  64.67KHz
        v: height  525 start  526 end  529 total  540           clock  59.88Hz
  864x486 (0x7c) 32.500MHz -HSync +VSync
        h: width   864 start  888 end  968 total 1072 skew    0 clock  30.32KHz
        v: height  486 start  489 end  494 total  506           clock  59.92Hz
  864x486 (0x7d) 30.500MHz +HSync -VSync
        h: width   864 start  912 end  944 total 1024 skew    0 clock  29.79KHz
        v: height  486 start  489 end  494 total  500           clock  59.57Hz
  800x512 (0x7e) 51.562MHz +HSync +VSync DoubleScan
        h: width   800 start  800 end  828 total  832 skew    0 clock  61.97KHz
        v: height  512 start  512 end  514 total  515           clock  60.17Hz
  700x525 (0x7f) 61.000MHz +HSync +VSync DoubleScan
        h: width   700 start  744 end  820 total  940 skew    0 clock  64.89KHz
        v: height  525 start  526 end  532 total  541           clock  59.98Hz
  800x450 (0x80) 59.125MHz -HSync +VSync DoubleScan
        h: width   800 start  848 end  928 total 1056 skew    0 clock  55.99KHz
        v: height  450 start  451 end  454 total  467           clock  59.95Hz
  800x450 (0x81) 48.750MHz +HSync -VSync DoubleScan
        h: width   800 start  824 end  840 total  880 skew    0 clock  55.40KHz
        v: height  450 start  451 end  454 total  463           clock  59.82Hz
  640x512 (0x82) 54.000MHz +HSync +VSync DoubleScan
        h: width   640 start  664 end  720 total  844 skew    0 clock  63.98KHz
        v: height  512 start  512 end  514 total  533           clock  60.02Hz
  720x450 (0x83) 53.250MHz -HSync +VSync DoubleScan
        h: width   720 start  760 end  836 total  952 skew    0 clock  55.93KHz
        v: height  450 start  451 end  454 total  467           clock  59.89Hz
  700x450 (0x84) 51.750MHz -HSync +VSync DoubleScan
        h: width   700 start  740 end  812 total  924 skew    0 clock  56.01KHz
        v: height  450 start  451 end  456 total  467           clock  59.96Hz
  700x450 (0x85) 43.250MHz +HSync -VSync DoubleScan
        h: width   700 start  724 end  740 total  780 skew    0 clock  55.45KHz
        v: height  450 start  451 end  456 total  463           clock  59.88Hz
  640x480 (0x86) 54.000MHz +HSync +VSync DoubleScan
        h: width   640 start  688 end  744 total  900 skew    0 clock  60.00KHz
        v: height  480 start  480 end  482 total  500           clock  60.00Hz
  640x480 (0x87) 25.175MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.47KHz
        v: height  480 start  490 end  492 total  525           clock  59.94Hz
  720x405 (0x88) 22.500MHz -HSync +VSync
        h: width   720 start  744 end  808 total  896 skew    0 clock  25.11KHz
        v: height  405 start  408 end  413 total  422           clock  59.51Hz
  720x405 (0x89) 21.750MHz +HSync -VSync
        h: width   720 start  768 end  800 total  880 skew    0 clock  24.72KHz
        v: height  405 start  408 end  413 total  419           clock  58.99Hz
  684x384 (0x8a) 42.625MHz -HSync +VSync DoubleScan
        h: width   684 start  720 end  788 total  892 skew    0 clock  47.79KHz
        v: height  384 start  385 end  390 total  399           clock  59.88Hz
  684x384 (0x8b) 36.125MHz +HSync -VSync DoubleScan
        h: width   684 start  708 end  724 total  764 skew    0 clock  47.28KHz
        v: height  384 start  385 end  390 total  395           clock  59.85Hz
  680x384 (0x8c) 42.375MHz -HSync +VSync DoubleScan
        h: width   680 start  716 end  784 total  888 skew    0 clock  47.72KHz
        v: height  384 start  385 end  390 total  399           clock  59.80Hz
  680x384 (0x8d) 36.000MHz +HSync -VSync DoubleScan
        h: width   680 start  704 end  720 total  760 skew    0 clock  47.37KHz
        v: height  384 start  385 end  390 total  395           clock  59.96Hz
  640x400 (0x8e) 41.750MHz -HSync +VSync DoubleScan
        h: width   640 start  676 end  740 total  840 skew    0 clock  49.70KHz
        v: height  400 start  401 end  404 total  415           clock  59.88Hz
  640x400 (0x8f) 35.500MHz +HSync -VSync DoubleScan
        h: width   640 start  664 end  680 total  720 skew    0 clock  49.31KHz
        v: height  400 start  401 end  404 total  411           clock  59.98Hz
  576x432 (0x90) 40.810MHz -HSync +VSync DoubleScan
        h: width   576 start  608 end  668 total  760 skew    0 clock  53.70KHz
        v: height  432 start  432 end  434 total  447           clock  60.06Hz
  640x360 (0x91) 37.250MHz -HSync +VSync DoubleScan
        h: width   640 start  672 end  736 total  832 skew    0 clock  44.77KHz
        v: height  360 start  361 end  364 total  374           clock  59.86Hz
  640x360 (0x92) 31.875MHz +HSync -VSync DoubleScan
        h: width   640 start  664 end  680 total  720 skew    0 clock  44.27KHz
        v: height  360 start  361 end  364 total  370           clock  59.83Hz
  640x360 (0x93) 18.000MHz -HSync +VSync
        h: width   640 start  664 end  720 total  800 skew    0 clock  22.50KHz
        v: height  360 start  363 end  368 total  376           clock  59.84Hz
  640x360 (0x94) 17.750MHz +HSync -VSync
        h: width   640 start  688 end  720 total  800 skew    0 clock  22.19KHz
        v: height  360 start  363 end  368 total  374           clock  59.32Hz
  512x384 (0x95) 32.500MHz -HSync -VSync DoubleScan
        h: width   512 start  524 end  592 total  672 skew    0 clock  48.36KHz
        v: height  384 start  385 end  388 total  403           clock  60.00Hz
  512x288 (0x96) 23.250MHz -HSync +VSync DoubleScan
        h: width   512 start  532 end  580 total  648 skew    0 clock  35.88KHz
        v: height  288 start  289 end  292 total  299           clock  60.00Hz
  512x288 (0x97) 21.000MHz +HSync -VSync DoubleScan
        h: width   512 start  536 end  552 total  592 skew    0 clock  35.47KHz
        v: height  288 start  289 end  292 total  296           clock  59.92Hz
  480x270 (0x98) 20.375MHz -HSync +VSync DoubleScan
        h: width   480 start  496 end  544 total  608 skew    0 clock  33.51KHz
        v: height  270 start  271 end  274 total  281           clock  59.63Hz
  480x270 (0x99) 18.625MHz +HSync -VSync DoubleScan
        h: width   480 start  504 end  520 total  560 skew    0 clock  33.26KHz
        v: height  270 start  271 end  274 total  278           clock  59.82Hz
  400x300 (0x9a) 20.000MHz +HSync +VSync DoubleScan
        h: width   400 start  420 end  484 total  528 skew    0 clock  37.88KHz
        v: height  300 start  300 end  302 total  314           clock  60.32Hz
  400x300 (0x9b) 18.000MHz +HSync +VSync DoubleScan
        h: width   400 start  412 end  448 total  512 skew    0 clock  35.16KHz
        v: height  300 start  300 end  301 total  312           clock  56.34Hz
  432x243 (0x9c) 16.250MHz -HSync +VSync DoubleScan
        h: width   432 start  444 end  484 total  536 skew    0 clock  30.32KHz
        v: height  243 start  244 end  247 total  253           clock  59.92Hz
  432x243 (0x9d) 15.250MHz +HSync -VSync DoubleScan


[...]  I cut the other screen resolutions because body in askubuntu is max 30000 characters.


DP-1 connected primary 1920x1080+0+0 (0xa3) normal (normal left inverted right x axis y axis) 521mm x 293mm
    Identifier: 0x43
    Timestamp:  1374378
    Subpixel:   unknown
    Gamma:      1.0:1.0:1.0
    Brightness: 1.0
    Clones:    
    CRTC:       0
    CRTCs:      1 0 2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    _MUTTER_PRESENTATION_OUTPUT: 0 
    EDID: 
        00ffffffffffff0026cd1d61a1040000
        1b1b010380341d782a2ac5a4564f9e28
        0f5054210800d1c081809500b3008140
        010101010101023a801871382d40582c
        450009252100001e000000fd00374c1e
        5311000a202020202020000000ff0031
        313335375637373031313835000000fc
        00504c5832343831480a202020200187
        02031ef14b901f051404131112030201
        230907018301000065030c0010008c0a
        d08a20e02d10103e9600092521000018
        011d007251d01e206e28550009252100
        001e8c0ad090204031200c4055000925
        21000018000000000000000000000000
        00000000000000000000000000000000
        000000000000000000000000000000ef
    Content Protection: Undesired 
        supported: Undesired, Desired, Enabled
    max bpc: 12 
        range: (6, 12)
    Broadcast RGB: Automatic 
        supported: Automatic, Full, Limited 16:235
    audio: auto 
        supported: force-dvi, off, auto, on
    link-status: Good 
        supported: Good, Bad
    CONNECTOR_ID: 92 
        supported: 92
    non-desktop: 0 
        range: (0, 1)
  1920x1080 (0xa3) 148.500MHz +HSync +VSync *current +preferred
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.50KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  60.00Hz
  1920x1080 (0x5ef) 148.500MHz +HSync +VSync
        h: width  1920 start 2448 end 2492 total 2640 skew    0 clock  56.25KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  50.00Hz
  1920x1080 (0x5f0) 148.352MHz +HSync +VSync
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.43KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  59.94Hz
  1920x1080i (0x5f1) 74.250MHz +HSync +VSync Interlace
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  33.75KHz
        v: height 1080 start 1084 end 1094 total 1125           clock  60.00Hz
  1920x1080i (0x5f2) 74.250MHz +HSync +VSync Interlace
        h: width  1920 start 2448 end 2492 total 2640 skew    0 clock  28.12KHz
        v: height 1080 start 1084 end 1094 total 1125           clock  50.00Hz
  1920x1080i (0x5f3) 74.176MHz +HSync +VSync Interlace
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  33.72KHz
        v: height 1080 start 1084 end 1094 total 1125           clock  59.94Hz
  1680x1050 (0x4d) 119.000MHz +HSync -VSync
        h: width  1680 start 1728 end 1760 total 1840 skew    0 clock  64.67KHz
        v: height 1050 start 1053 end 1059 total 1080           clock  59.88Hz
  1280x1024 (0x54) 108.000MHz +HSync +VSync
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock  63.98KHz
        v: height 1024 start 1025 end 1028 total 1066           clock  60.02Hz
  1440x900 (0x5f4) 88.750MHz +HSync -VSync
        h: width  1440 start 1488 end 1520 total 1600 skew    0 clock  55.47KHz
        v: height  900 start  903 end  909 total  926           clock  59.90Hz
  1280x960 (0x58) 108.000MHz +HSync +VSync
        h: width  1280 start 1376 end 1488 total 1800 skew    0 clock  60.00KHz
        v: height  960 start  961 end  964 total 1000           clock  60.00Hz
  1280x720 (0x5f5) 74.250MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  45.00KHz
        v: height  720 start  725 end  730 total  750           clock  60.00Hz
  1280x720 (0x5f6) 74.250MHz +HSync +VSync
        h: width  1280 start 1720 end 1760 total 1980 skew    0 clock  37.50KHz
        v: height  720 start  725 end  730 total  750           clock  50.00Hz

[...]  I cut the other screen resolutions because body in askubuntu is max 30000 characters.


DP-2 disconnected (normal left inverted right x axis y axis)
    Identifier: 0x44
    Timestamp:  1374378
    Subpixel:   unknown
    Clones:    
    CRTCs:      1 0 2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    Content Protection: Undesired 
        supported: Undesired, Desired, Enabled
    max bpc: 12 
        range: (6, 12)
    Broadcast RGB: Automatic 
        supported: Automatic, Full, Limited 16:235
    audio: auto 
        supported: force-dvi, off, auto, on
    link-status: Good 
        supported: Good, Bad
    CONNECTOR_ID: 100 
        supported: 100
    non-desktop: 0 
        range: (0, 1)
multiple-monitors display hdmi vga 20.04
Martin Hope
cidthecoatrack
Asked: 2020-08-23 06:57:22 +0800 CST
  • 2

所以，我有一个常见但特别奇怪的问题。多年来，我有一台运行 Ubuntu 18.04 LTS 的 PC Tower 连接到电视作为我的媒体计算机。我升级到更新的电视，但塔无法向新电视发送信号。以下是内幕：

  1. 其他电脑（运行windows）可以用相同的HDMI线和相同的端口插入电视，它在电视上显示很好（视频和音频）
  2. 我可以将塔插回旧电视，它显示正常
  3. 塔的背面有 2 个 HDMI 端口，但连接到主板的那个似乎无法正常工作 - 无论哪台电视插入该端口，都没有显示。不幸的是，这意味着我不能有“双显示器”设置，并且一次只能有 1 个视口。
  4. 如果我将HDMI插入旧电视，让它在那里等待10秒钟左右，然后切换到新电视，然后视频/音频转到新电视！但是，如果我重新启动，或者我做了任何会触发“查找”显示的事情（例如打开“显示”设置、xrandr在终端中运行或运行像 Kodi 这样的全屏应用程序），那么信号丢失了。
  5. 当信号丢失时，我可以再次将旧电视重新插入 10 秒钟，然后重新插入新电视，一切都恢复了。
  6. 如果我在连接到新电视时启动塔，我可以看到主板的启动屏幕和紫色的 Ubuntu 启动屏幕 - 然后信号丢失。
  7. 由于我无法运行xrandr或打开显示器，因此很难对新电视无法接收信号的原因进行故障排除。
  8. 我试过删除显示器的配置文件，但这并没有解决问题。在我这样做之后旧电视仍然可以工作（尽管我不得不重新调整一些设置），但是新电视在 boot/ 时仍然没有收到信号xrandr。
  9. 我隐约记得，在第一次设置旧电视时，我可能会遇到类似的问题（如果不完全相同的话）。显然当时我已经解决了，但也是很多很多年前的事了，所以如果我以前解决过这个问题，我已经不记得我必须做什么了。此外，它可能与旧版本的 Ubuntu（可能是 13.10）一起使用，因此旧的解决方案可能不再适用。

我只是希望能够将新电视用作这台媒体计算机的显示器。如果有人有建议，我很想听听。

编辑：

  1. 我可以使用启动驱动器，重新启动计算机，它会在新电视上正常显示。这告诉我当前安装的某种配置不适用于新电视，但我不知道它隐藏在哪里，或者如何调整/修复它。
  2. 就重要而言（可能不重要），旧电视是飞利浦 32 英寸，新电视是 Sceptre 55 英寸。两台电视都是哑电视。旧电视是 720p，60Hz 刷新。新电视是 4K (2160p)，也是 60Hz 刷新。
  3. 塔中的显卡是 NVidia 显卡 (GeForce GT 610)，使用 X.Org X Server 驱动程序。
display hdmi tv 18.04
Martin Hope
Daniel
Asked: 2020-08-19 12:18:48 +0800 CST
  • 4

我用了两年的linux。我买了一台新的 4K 戴尔显示器，将它连接到 HDMI，启动到 Windows，它工作正常，然后我启动到 Ubuntu Linux，它只是没有显示图像（在 Elementary OS 中也发生了同样的事情）。

然后我启动到 Fedora Linux，它也没有显示图片，除非我进入设置并将其设置为 30 Hz（是的，我有一个 60 Hz 模式，它只是不起作用）——同样的事情发生在 Manjaro。

我在 Ubuntu 中根本看不到任何图片。

笔记：

  1. 我在我的操作系统中禁用了安全启动，因为我在安装 Manjaro 时禁用了它。

  2. Xorg 驱动程序从来没有为我工作过，我总是强制使用安全模式，直到我不安装 Nvidia 专有驱动程序..

  3. 我使用 AMD Ryzen 第 4 代移动（笔记本电脑）处理器，如果重要的话（我不知道 Linux 中对 Ryzen 的支持有多好）

我尝试了这些解决方案：

  • 创建一个禁用 edid 并强制 60 Hz 刷新率的 xorg 模式，
  • 设置一个 60 Hz 的刷新率，然后我尝试了 54 Hz 和 50 Hz，没有任何效果。

然后我在尝试了两天后就放弃了。

nvidia hdmi amd-processor fedora 4k-monitor