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问题[brightness](ubuntu)

Martin Hope
plywood98
Asked: 2024-07-06 01:51:41 +0800 CST
  • 5

我最近从 Ubuntu 20.04 切换到 Ubuntu 24.04。 的输出uname -r -v是6.8.0-36-lowlatency #36.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Jun 13 17:00:08 UTC 2024。除了设置屏幕亮度级别之外，一切似乎都运行良好。起初，键盘快捷键（Fn+F6 和 Fn+F7）没有任何作用，我能够通过对 GRUB 文件进行以下修改来使它们工作：

# GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
# GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor acpi_osi=linux"
# GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=force acpi_backlight=native"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=force acpi_backlight=video"

（请注意，注释行对应于初始设置，随后是在不同论坛上建议的两次不成功的尝试。）

此时，键盘快捷键“起作用”了，因为我会从系统获得反馈，表明我的操作正在产生作用，如下面的屏幕截图所示： 屏幕亮度调节反馈的屏幕截图 不幸的是，这并没有转化为屏幕亮度的实际变化。

我有一台戴尔 G15 笔记本电脑，以防万一。

尝试使用 xbacklight 会产生消息“没有输出具有背光属性”，因此我尝试了此帖子中的命令，但我不确定是否应该以及如何修改我的/etc/X11/xorg.conf文件：

sudo find /sys/ -type f -iname '*brightness*'产量：

/sys/kernel/debug/dri/0000:00:02.0/i915_params/invert_brightness
/sys/devices/platform/alienware-wmi/leds/alienware::global_brightness/brightness
/sys/devices/platform/alienware-wmi/leds/alienware::global_brightness/max_brightness
/sys/devices/platform/i8042/serio0/input/input2/input2::numlock/brightness
/sys/devices/platform/i8042/serio0/input/input2/input2::numlock/max_brightness
/sys/devices/platform/i8042/serio0/input/input2/input2::capslock/brightness
/sys/devices/platform/i8042/serio0/input/input2/input2::capslock/max_brightness
/sys/devices/platform/i8042/serio0/input/input2/input2::scrolllock/brightness
/sys/devices/platform/i8042/serio0/input/input2/input2::scrolllock/max_brightness
/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/brightness
/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/brightness_hw_changed
/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/max_brightness
/sys/devices/pci0000:00/0000:00:14.3/leds/phy0-led/brightness
/sys/devices/pci0000:00/0000:00:14.3/leds/phy0-led/max_brightness
/sys/devices/pci0000:00/0000:00:02.0/backlight/acpi_video0/actual_brightness
/sys/devices/pci0000:00/0000:00:02.0/backlight/acpi_video0/brightness
/sys/devices/pci0000:00/0000:00:02.0/backlight/acpi_video0/max_brightness
/sys/devices/pci0000:00/0000:00:1d.5/0000:04:00.0/net/enp4s0/enp4s0-2::lan/brightness
/sys/devices/pci0000:00/0000:00:1d.5/0000:04:00.0/net/enp4s0/enp4s0-2::lan/max_brightness
/sys/devices/pci0000:00/0000:00:1d.5/0000:04:00.0/net/enp4s0/enp4s0-1::lan/brightness
/sys/devices/pci0000:00/0000:00:1d.5/0000:04:00.0/net/enp4s0/enp4s0-1::lan/max_brightness
/sys/devices/pci0000:00/0000:00:1d.5/0000:04:00.0/net/enp4s0/enp4s0-0::lan/brightness
/sys/devices/pci0000:00/0000:00:1d.5/0000:04:00.0/net/enp4s0/enp4s0-0::lan/max_brightness
/sys/devices/virtual/sound/ctl-led/speaker/brightness
/sys/devices/virtual/sound/ctl-led/mic/brightness
/sys/module/video/parameters/hw_changes_brightness
/sys/module/video/parameters/brightness_switch_enabled
/sys/module/xe/parameters/invert_brightness
/sys/module/i915/parameters/invert_brightness

ls -alrt /sys/class/backlight指着：

lrwxrwxrwx  1 root root 0 Jul  5 12:50 acpi_video0 -> ../../devices/pci0000:00/0000:00:02.0/backlight/acpi_video0

/sys/class/backlight/acpi_video0和中的文件/sys/devices/pci0000:00/0000:00:02.0/backlight/acpi_video0已链接，文件actual_brightness和中的值brightness现在似乎已被预期的键盘快捷键修改（在两个目录和两个文件中）。也就是说，实际屏幕亮度仍然没有变化：无论是手动更改值还是使用快捷键更改值，这都不会影响屏幕亮度，尽管此答案中似乎有效。

最后，另一篇目前有一定影响力的帖子似乎与特定的笔记本电脑型号有关，而我的笔记本电脑型号与此不同。此问题涉及与我的笔记本电脑相同的潜在类似问题，但没有答案。

brightness
Martin Hope
Lambrah93
Asked: 2023-08-26 22:15:30 +0800 CST
  • 6

我是 Linux 新手，对命令不太了解，我有一个 iMac 11.2 Intel® Core™ i5 CPU 680 @ 3.60GHz × 4，RAM 12 GB，在上面安装了 Ubuntu 22.04.3 解决通风问题后问题并没有停止，在安装了WIFI/蓝牙卡等其他驱动程序后，我尝试了一切方法来解决亮度问题但不可能。我读了大约五十个论坛，都有类似的问题，但不可能做那么多。我的亮度幻灯片没有反应。我给你留下了我输入的用于诊断问题的命令行的返回值。

dpkg -l | grep -v ^ii

Souhait=inconnU/Installé/suppRimé/Purgé/H=à garder
| État=Non/Installé/fichier-Config/dépaqUeté/échec-conFig/H=semi-installé/W=attend-traitement-déclenchements
|/ Err?=(aucune)/besoin Réinstallation (État,Err: majuscule=mauvais)
||/ Nom                                        Version                                 Architecture Description
+++-==========================================-=======================================-============-================================================================================
hi  grub-efi-amd64-signed                      1.187.3~22.04.1+2.06-2ubuntu14.1        amd64        GRand Unified Bootloader, version 2 (EFI-AMD64 version, signed)

ls -l /var/crash

total 9624
-rw-r--r-- 1 root     whoopsie    5156 août  24 03:29 apple-bl-gmux-dkms.0.crash
-rw------- 1 root     whoopsie  480469 août  22 13:37 grub-efi-amd64.0.crash
-rw-r----- 1 root     whoopsie   81162 août  21 01:24 _usr_bin_clinfo.0.crash
-rw-r--r-- 1 root     whoopsie       0 août  21 01:24 _usr_bin_clinfo.0.upload
-rw------- 1 whoopsie whoopsie      37 août  21 01:24 _usr_bin_clinfo.0.uploaded
-rw-r----- 1 lamine   whoopsie 6082323 août  22 03:31 _usr_bin_gjs-console.1000.crash
-rw-r----- 1 lamine   whoopsie   75559 août  21 12:06 _usr_bin_indicator-cpufreq.1000.crash
-rw-rw-r-- 1 lamine   whoopsie       0 août  21 03:29 _usr_bin_indicator-cpufreq.1000.upload
-rw------- 1 whoopsie whoopsie      37 août  21 03:29 _usr_bin_indicator-cpufreq.1000.uploaded
-rw-r----- 1 lamine   whoopsie 2752841 août  21 01:25 _usr_bin_update-notifier.1000.crash
-rw-rw-r-- 1 lamine   whoopsie       0 août  21 01:25 _usr_bin_update-notifier.1000.upload
-rw------- 1 whoopsie whoopsie      37 août  21 01:25 _usr_bin_update-notifier.1000.uploaded
-rw-r----- 1 lamine   whoopsie  348831 août  22 12:29 _usr_lib_x86_64-linux-gnu_indicator-messages_indicator-messages-service.1000.crash

lspci -vnn | grep -A 12 '\''[030[02]\]' | grep -Ei "vga|3d|display|kernel"

01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Madison [Mobility Radeon HD 5730 / 6570M] [1002:68c0] (prog-if 00 [VGA controller])
    Kernel driver in use: radeon
    Kernel modules: radeon, amdgpu

systemctl status systemd-backlight@acpi_video0.service

systemd-backlight@acpi_video0.service - Load/Save Screen Backlight Brightness of acpi_video0
     Loaded: loaded (/lib/systemd/system/[email protected]; static)
     Active: inactive (dead)
       Docs: man:[email protected](8)

lsmod | grep acpi

snd_intel_sdw_acpi     20480  1 snd_intel_dspcfg

lsmod | grep amd

$ : commande introuvable

（作为根 Sudo -i）

dmesg | grep -i amdgpu

[   17.552271] [drm] amdgpu kernel modesetting enabled.
[   17.553203] amdgpu: CRAT table not found
[   17.553214] amdgpu: Virtual CRAT table created for CPU
[   17.553262] amdgpu: Topology: Add CPU node
[   17.872326] Modules linked in: ccm amdgpu cmac algif_hash algif_skcipher af_alg bnep iommu_v2 drm_buddy gpu_sched btusb btrtl btbcm btintel btmtk bluetooth ecdh_generic ecc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc apple_mfi_fastcharge joydev input_leds binfmt_misc nls_iso8859_1 intel_powerclamp snd_hda_codec_hdmi snd_hda_codec_cirrus snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec kvm_intel snd_hda_core applesmc kvm radeon snd_hwdep ath9k irqbypass crct10dif_pclmul polyval_generic ath9k_common ghash_clmulni_intel sha512_ssse3 drm_ttm_helper aesni_intel snd_pcm ath9k_hw ttm drm_display_helper crypto_simd cryptd ath snd_seq_midi cec rc_core intel_cstate mac80211 snd_seq_midi_event snd_rawmidi snd_seq drm_kms_helper snd_seq_device i2c_algo_bit snd_timer at24 cfg80211 syscopyarea snd sysfillrect intel_ips sysimgblt libarc4 soundcore mac_hid apple_bl sch_fq_codel coretemp msr parport_pc ppdev

sudo lshw -c video

       description: VGA compatible controller
       produit: Madison [Mobility Radeon HD 5730 / 6570M]
       fabricant: Advanced Micro Devices, Inc. [AMD/ATI]
       identifiant matériel: 0
       information bus: pci@0000:01:00.0
       nom logique: /dev/fb0
       version: 00
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm pciexpress msi vga_controller bus_master cap_list rom fb
       configuration : depth=32 driver=radeon latency=0 resolution=1920,1080
       ressources : irq:31 mémoire:c0000000-cfffffff mémoire:d0400000-d041ffff portE/S:2000(taille=256) mémoire:d0420000-d043ffff

ls /sys/class/backlight/

acpi_video0

glxinfo | egrep -i 'device|memory' 

Device: AMD REDWOOD (DRM 2.50.0 / 6.2.0-26-generic, LLVM 15.0.7) (0x68c0)
    Video memory: 512MB
    Unified memory: no
Memory info (GL_ATI_meminfo):
    VBO free memory - total: 511 MB, largest block: 511 MB
    VBO free aux. memory - total: 1021 MB, largest block: 1021 MB
    Texture free memory - total: 511 MB, largest block: 511 MB
    Texture free aux. memory - total: 1021 MB, largest block: 1021 MB
    Renderbuffer free memory - total: 511 MB, largest block: 511 MB
    Renderbuffer free aux. memory - total: 1021 MB, largest block: 1021 MB
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 512 MB
    Total available memory: 1533 MB
    Currently available dedicated video memory: 511 MB
    GL_AMD_pinned_memory, GL_AMD_query_buffer_object, 
    GL_EXT_framebuffer_object, GL_EXT_framebuffer_sRGB, GL_EXT_memory_object, 
    GL_EXT_memory_object_fd, GL_EXT_packed_depth_stencil, GL_EXT_packed_float, 
    GL_MESA_texture_signed_rgba, GL_NVX_gpu_memory_info, 
    GL_AMD_performance_monitor, GL_AMD_pinned_memory, 
    GL_EXT_gpu_shader4, GL_EXT_memory_object, GL_EXT_memory_object_fd, 
    GL_MESA_texture_signed_rgba, GL_MESA_window_pos, GL_NVX_gpu_memory_info, 
    GL_EXT_map_buffer_range, GL_EXT_memory_object, GL_EXT_memory_object_fd,

sudo nano /etc/default/grub 那个打开的空脚本

我还尝试使用类似命令手动更改亮度echo 40 > /sys/class/backlightor，xrandr但没有任何效果。我是新手，但在我看来问题是acpi_video0应该是readon_bl0oramd_gpux或apple_gMux。如果有人理解某事，我会迷失，我很乐意接受他的知识。谢谢。PS：抱歉，航站楼返回时显示法语

brightness
Martin Hope
professionaltea
Asked: 2022-09-22 11:53:36 +0800 CST
  • 0

出于某种原因，我的笔记本电脑（三星 Galaxy Book 12）拒绝让我更改屏幕亮度。我已经尝试了我在网上看到的所有选项（.conf 文件的更改、新的开发规则、xrandr/亮度控制器等），但没有任何效果，我想我对此无能为力。

不幸的是，即使打开了 Ubuntu 的夜间模式，这也不能阻止屏幕灼伤我的眼睛并让我头疼……我的问题是，有谁知道是否有办法人为地使我的屏幕变暗？我可以应用某种深色滤镜，让它更容易忍受？提前致谢！

brightness
Martin Hope
StressedBoi_69420
Asked: 2022-06-15 03:53:25 +0800 CST
  • 0

目标：通过/降低屏幕亮度（通过“标准”降低/降低）。单行命令。

按照本教程，没有发生任何变化：

(base) moi@ubuntu-pcs:~$ sudo apt update
[sudo] password for moi: 
Hit:1 http://gb.archive.ubuntu.com/ubuntu jammy InRelease
Get:2 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
Get:3 http://gb.archive.ubuntu.com/ubuntu jammy-updates InRelease [109 kB]     
Hit:4 https://dl.google.com/linux/chrome/deb stable InRelease                  
Get:5 http://gb.archive.ubuntu.com/ubuntu jammy-backports InRelease [99.8 kB]  
Get:6 http://security.ubuntu.com/ubuntu jammy-security/main amd64 DEP-11 Metadata [11.4 kB]
Get:7 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 DEP-11 Metadata [73.4 kB]
Get:8 http://gb.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 DEP-11 Metadata [91.8 kB]
Get:9 http://gb.archive.ubuntu.com/ubuntu jammy-backports/universe amd64 DEP-11 Metadata [1,196 B]
Fetched 497 kB in 2s (272 kB/s)               
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
125 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target Translations (main/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11-icons-hidpi (main/dep11/[email protected]) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
N: Skipping acquisition of configured file 'main/binary-i386/Packages', as repository 'https://dl.google.com/linux/chrome/deb stable InRelease' doesn't support architecture 'i386'
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target Translations (main/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target DEP-11-icons-hidpi (main/dep11/[email protected]) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google-chrome.list:4
(base) moi@ubuntu-pcs:~$ xrandr | grep " connected" | cut -f1 -d " "
XWAYLAND0
(base) moi@ubuntu-pcs:~$ xrandr --output XWAYLAND0 --brightness 0.5

lsb_release -a：

(base) moi@ubuntu-pcs:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04 LTS
Release:    22.04
Codename:   jammy
brightness
Martin Hope
Abishek VP
Asked: 2020-12-16 03:36:15 +0800 CST
  • 1

我有 ubuntu 20.04。亮度不起作用，默认为 100%。以所有可能的方式编辑了 grub 文件，但仍然无法正常工作。安装了亮度控制器，但仍然无法正常工作。我的机器是 acer swift 3，在带有 vega 6 图形的 ryzen 5 4500u 上运行。请给我一个解决方案。我的眼睛疼得厉害

附言; 更新您的内核人员。它终于对我有用。 https://askubuntu.com/a/1281948/1158910

acpi brightness 20.04
Martin Hope
linuxnoob
Asked: 2020-12-09 05:58:46 +0800 CST
  • 0

首先，我尝试了在互联网上找到的所有内容，但没有得到任何结果。

我有一台带有 AMD RADEON 显卡的华硕 Vivobook，我无法调整笔记本电脑的亮度，无论是使用 FN 键还是设置。

我读过但不能做的唯一一件事就是升级我的内核。（我做了 2ice 但我无法使用新内核启动 Ubuntu）。

有没有人有同样的问题？

先感谢您！

kernel brightness asus amd-graphics 20.04
Martin Hope
Himaprasoon
Asked: 2020-12-07 00:22:09 +0800 CST
  • 2

我尝试了各种方法，包括 xbacklight（和其他在线指南来更改它），但没有任何效果。

xrandr命令给了我Failed to get size of gamma for output default

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 primary 1920x1080+0+0 0mm x 0mm
   1920x1080     77.00* 

sudo lshw -c video

给出了以下输出

*-display UNCLAIMED       
       description: VGA compatible controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list
       configuration: latency=0
       resources: iomemory:600-5ff iomemory:400-3ff memory:603e000000-603effffff memory:4000000000-400fffffff ioport:3000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff

我有英特尔 iris xe 图形。

我最初尝试安装elementary os Hera。我无法进行亮度控制，然后我决定尝试 ubuntu 20.04。在基本的 sys/class/backlight 中有一个名为 asus-nb-wmi 的文件夹。在 ubuntu 中它完全是空的。这是因为我的笔记本电脑图形/视频没有可用的驱动程序吗？

https://paste.ubuntu.com/p/tDXnCvGBDJ/的输出 bash sudo find /sys/ -type f -iname '*brightness*'

display intel-graphics brightness asus 20.04
Martin Hope
jon anotter88998889
Asked: 2020-11-25 01:08:44 +0800 CST
  • 0

我的 Acer nitro5 AN5-15-55 笔记本电脑键盘背光工作正常，只有红色可用，（我无法调整键盘背光亮度），但是

  1. 当我不打字时，背光“休眠”？打字前我什么都看不到。如何让背光一直亮着？（原因是天黑时我根本看不到键盘字母，只有在我输入时才会亮起，所以我必须第一次按空格键或打错字才能在 Ubuntu 20.10 中启用背光？）

  2. 同样在 Windows 中，我可以调整键盘背光不同的颜色，但是如何在 Ubuntu 20.10 中调整键盘背光颜色？可能吗？

keyboard backlight brightness acer 20.10