显示号/屏幕号

Question

我正试图通过使用x杯来降低显示器的对比度。这是我的作品。

Screen 0: minimum 8 x 8, current 3840 x 1200, maximum 32767 x 32767
DVI-D-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 527mm x 296mm
   1920x1080     60.00*+
   1680x1050     59.95  
   1600x900      60.00  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x720      60.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   640x480       75.00    59.94  
HDMI-0 connected 1920x1200+1920+0 (normal left inverted right x axis y axis) 518mm x 324mm
   1920x1200     59.95*+
   1920x1080     60.00  
   1680x1050     59.95  
   1600x1200     60.00  
   1280x1024     60.02  
   1280x960      60.00  
   1024x768      60.00  
   800x600       60.32  
   640x480       59.94  
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)

我现在可以用这个命令按比例改变两个显示器的对比-

xcalib -co 80 -a #reduces contrast by 80 percent.

如何指定监视器名称？

xcalib -co -80 -d DVI-D-0

抛出错误-无法打开显示

Answer 1

试错xcalib的S -screen参数根据您的xrandr输出获取监视器的零索引编号，也就是说，在您的示例中，xcalib -s 0 (默认)将控制DVI-D-0，xcalib -s 1将控制HDMI-0。