我在 Lubuntu 20.04 Focal Fossa 中使用 LXQt。
我想去掉 Livepatch 指示器，它在我面板上的系统托盘中（托盘里装满了 c*** 我反正不需要！）
我在这里寻找答案：
但这些建议不起作用，或者不是关于删除 livepatch。
我不介意完全禁用它，或者只是删除图标。它可以只针对我的用户，也可以针对全球。
在新的 Ubuntu 18.04 中：
我在任何发行说明中都找不到这个（我不想安装只是为了检查。）
我想更改用于在 LXPanel 的数字时钟中呈现时间的字体大小。我看到 lxpanel 配置文件有一个字体设置，但它似乎会影响窗口栏/按钮标签；我想要的东西只是时钟。
可以更改时钟字体大小吗？如果是这样，怎么做？
PS - 我还尝试更改面板高度（从 26 到 32），但没有帮助。
我运行 Kubuntu 16.04（刚刚从 ISO 安装）。我的电脑有片上英特尔显卡，这是我用于显示的。我还有一张 GTX 650 Ti Boost 卡，我不想用于显示（仅用于 CUDA 工作）。
安装 nVIDIA 驱动程序的 Xorg 错误是：
(EE) NOUVEAU(G0): [XvMC] Failed to initialize extension.
...
(EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)
如果我卸载 nVIDIA 驱动程序，X 将再次正常工作（很快会在此处引用一些日志消息）。
我怎样才能同时安装 X 和 CUDA（即驱动程序安装和运行）？
适当披露：我曾问过关于 unix.SX 上的 Debian Stretch 的相同问题，但由于我刚刚切换到 Kubuntu，所以将其删除。
更新：
因此，我完全卸载了 Nouveau 以进一步探索这一点。当我生成 xorg.conf 时，我得到（剪辑输入设备相关和文件行和部分）：
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
EndSection
Section "Module"
Load "glx"
EndSection
section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Device"
Identifier "Card0"
Driver "fbdev"
BusID "PCI:0:2:0"
EndSection
Section "Device"
Identifier "Card1"
Driver "fbdev"
BusID "PCI:2:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Card1"
Monitor "Monitor1"
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
（注意 PCI 2:0:0 是 nVIDIA 卡，0:2:0 是片上显卡。）
现在，
/usr/lib/xorg/modules，删除 nvidia 的 libglx.so 和/或恢复非 nvidia libglx.so - 仍然是空白屏幕。我确实收到了不同的错误消息。有了上述最广泛的子集，我有：
[ 1952.022] (==) Log file: "/var/log/Xorg.0.log", Time: Wed Aug 10 10:07:20 2016
[ 1952.022] (==) Using config file: "/etc/X11/xorg.conf"
[ 1952.022] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 1952.022] (==) ServerLayout "X.org Configured"
[ 1952.022] (**) |-->Screen "Screen0" (0)
[ 1952.022] (**) | |-->Monitor "Monitor0"
[ 1952.022] (**) | |-->Device "Card0"
[ 1952.022] (**) |-->Input Device "Mouse0"
[ 1952.022] (**) |-->Input Device "Keyboard0"
[ 1952.022] (==) Automatically adding devices
[ 1952.022] (==) Automatically enabling devices
[ 1952.022] (==) Automatically adding GPU devices
...
1952.024] (II) xfree86: Adding drm device (/dev/dri/card1)
[ 1952.024] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 1952.026] (--) PCI:*(0:0:2:0) 8086:0162:1565:110f rev 9, Mem @ 0xf7400000/4194304, 0xd0000000/268435456, I/O @ 0x0000f000/64
[ 1952.026] (--) PCI: (0:2:0:0) 10de:11c2:19da:1281 rev 161, Mem @ 0xf6000000/16777216, 0xe0000000/134217728, 0xe8000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/524288
[ 1952.026] (II) LoadModule: "glx"
[ 1952.026] (II) Loading /usr/lib/xorg/modules/extensions-nvidia-leave-me-alone/libglx.so
[ 1952.026] (II) Module glx: vendor="X.Org Foundation"
[ 1952.026] compiled for 1.18.3, module version = 1.0.0
[ 1952.026] ABI class: X.Org Server Extension, version 9.0
[ 1952.026] (==) AIGLX enabled
[ 1952.026] (II) LoadModule: "fbdev"
[ 1952.027] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 1952.027] (II) Module fbdev: vendor="X.Org Foundation"
[ 1952.027] compiled for 1.18.1, module version = 0.4.4
[ 1952.027] Module class: X.Org Video Driver
[ 1952.027] ABI class: X.Org Video Driver, version 20.0
[ 1952.027] (II) FBDEV: driver for framebuffer: fbdev
[ 1952.033] (II) Loading sub module "fbdevhw"
[ 1952.033] (II) LoadModule: "fbdevhw"
[ 1952.033] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 1952.033] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 1952.033] compiled for 1.18.3, module version = 0.0.2
[ 1952.033] ABI class: X.Org Video Driver, version 20.0
[ 1952.033] (**) FBDEV(0): claimed PCI slot 0@0:2:0
[ 1952.033] (II) FBDEV(0): using default device
[ 1952.033] (==) FBDEV(0): Depth 24, (==) framebuffer bpp 32
[ 1952.033] (==) FBDEV(0): RGB weight 888
[ 1952.033] (==) FBDEV(0): Default visual is TrueColor
[ 1952.033] (==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
[ 1952.033] (II) FBDEV(0): hardware: inteldrmfb (video memory: 8100kB)
[ 1952.033] (II) FBDEV(0): checking modes against framebuffer device...
[ 1952.033] (II) FBDEV(0): checking modes against monitor...
[ 1952.033] (--) FBDEV(0): Virtual size is 1920x1080 (pitch 1920)
[ 1952.033] (**) FBDEV(0): Built-in mode "current"
[ 1952.033] (==) FBDEV(0): DPI set to (96, 96)
[ 1952.033] (II) Loading sub module "fb"
[ 1952.033] (II) LoadModule: "fb"
[ 1952.033] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 1952.034] (II) Module fb: vendor="X.Org Foundation"
[ 1952.034] compiled for 1.18.3, module version = 1.0.0
[ 1952.034] ABI class: X.Org ANSI C Emulation, version 0.4
[ 1952.034] (**) FBDEV(0): using shadow framebuffer
[ 1952.034] (II) Loading sub module "shadow"
[ 1952.034] (II) LoadModule: "shadow"
[ 1952.034] (II) Loading /usr/lib/xorg/modules/libshadow.so
[ 1952.034] (II) Module shadow: vendor="X.Org Foundation"
[ 1952.034] compiled for 1.18.3, module version = 1.1.0
[ 1952.034] ABI class: X.Org ANSI C Emulation, version 0.4
[ 1952.034] (==) Depth 24 pixmap format is 32 bpp
[ 1952.079] (==) FBDEV(0): Backing store enabled
[ 1952.080] (EE) FBDEV(0): FBIOPUTCMAP: Invalid argument
... repeated many times
[ 1952.082] (==) FBDEV(0): DPMS enabled
[ 1952.082] (==) RandR enabled
[ 1952.087] (II) SELinux: Disabled on system
[ 1952.087] (II) AIGLX: Screen 0 is not DRI2 capable
[ 1952.087] (EE) AIGLX: reverting to software rendering
[ 1952.101] (EE) AIGLX error: dlopen of /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so failed (/usr/lib/x86_64-linux-gnu/dri/swrast_dri.so: undefined symbol: _glapi_tls_Dispatch)
[ 1952.101] (EE) GLX: could not load software renderer
[ 1952.101] (II) GLX: no usable GL providers found for screen 0
...
[ 2201.199] (II) config/udev: removing GPU device /sys/devices/pci0000:00/0000:00:01.1/0000:02:00.0/drm/card1 /dev/dri/card1
[ 2201.199] xf86: remove device 0 /sys/devices/pci0000:00/0000:00:01.1/0000:02:00.0/drm/card1