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xrandr 在 18.04 版无头 NUC/BACE 上使用 xserver-xorg-video-dummy 时“无法获取输出默认值的伽马大小”

tag-icon • tag-icon xorg display-resolution xrandr headless
xrandr 在 18.04 版无头 NUC/BACE 上使用 xserver-xorg-video-dummy 时“无法获取输出默认值的伽马大小”

我正在尝试在类似 NUC 的 Gigabyte BACE 上设置 Ubuntu 18.04。一切运行正常。但是：我想使用屏幕分辨率为 1680x1050 的 Gnome。

这是我做的：

sudo apt-get install xserver-xorg-video-dummy
sudo nano /usr/share/X11/xorg.conf.d/xorg.conf

还有

Section "Device"
    Identifier  "Configured Video Device"
    Driver      "dummy"
EndSection

Section "Monitor"
    Identifier  "Configured Monitor"
    HorizSync 31.5-48.5
    VertRefresh 50-70
    Modeline "1680x1050_60.00"  146.25  1680 1784 1960 2240  1050 1053 1059 1089 -hsync +vsync
EndSection

Section "Screen"
    Identifier  "Default Screen"
    Monitor     "Configured Monitor"
    Device      "Configured Video Device"
    DefaultDepth 24
    SubSection "Display"
    Depth 24
    Modes "1680x1050_60.00"
    EndSubSection
EndSection`

但是当我连接（通过 Anydesk）时，我得到的屏幕分辨率为 1360x768。

以下是输出xrandr（提到“失败”一词）：

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 240, current 1360 x 768, maximum 1360 x 768
default connected primary 1360x768+0+0 0mm x 0mm
   1360x768      60.00* 
   1280x720      60.00  
   1024x768      60.00  
   1024x576      60.00  
   960x540       60.00  
   800x600       60.00    56.00  
   640x480       60.00  
   684x384       60.00  
   680x384       60.00  
   640x360       60.00  
   512x384       60.00  
   512x288       60.00  
   480x270       60.00  
   400x300       60.00    56.00  
   320x240       60.00

此外，我尝试手动设置屏幕分辨率。但是

xrandr --newmode "1680x1050_60.00"  146.25  1680 1784 1960 2240  1050 1053 1059 1089 -hsync +vsync

给我

xrandr: Failed to get size of gamma for output default

我能做什么？我遗漏了什么吗？

谢谢，约阿希姆

好的

XORG 故障排除从以下开始

cat /var/log/Xorg.0.log

表明

[ 86133.223] _XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
[ 86133.223] _XSERVTransMakeAllCOTSServerListeners: server already running
[ 86133.223] (EE) 
Fatal server error:
[ 86133.223] (EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE) 
[ 86133.224] (EE) 
Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help. 
[ 86133.224] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 86133.224] (EE) 
[ 86133.224] (EE) Server terminated with error (1). Closing log file.

XORG 文档在“监视器部分”中指定伽马值。

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