多显示器缩放

多显示器缩放

我有一台联想 Y50-70,配备 UHD 4K 3840x2160 15.6 英寸显示器,还有一台外置旧三星 17 英寸显示器,分辨率为 1280x1024(5:4)。我使用 Ubuntu 19.10,在使用这两个屏幕时遇到严重问题。我阅读了有关此问题的一些主题的答案,但我仍然无法解决最后一个问题。我使用以下命令xrandr

对于外部:

xrandr --output HDMI-1-1 --scale 2x2 --mode 1280x1024 --fb 6400x2160 --pos 0x0

(三星显示器位于笔记本电脑的左侧,所以这就是我使用它的原因--pos 0x0,也是我使用 3840+(2*1280)的原因)。

对于笔记本电脑:

xrandr --output eDP-1-1 --scale 1x1 --pos 2560x0

我遇到的问题是,在外接三星显示器上,只显示屏幕的 1/4,并且图标保持相同大小。我该如何解决这个问题?

当我连接第二个屏幕时,不带任何参数的 xrandr 的输出是:

    Screen 0: minimum 8 x 8, current 5120 x 2160, maximum 16384 x 16384
eDP-1-1 connected primary 3840x2160+1280+0 (normal left inverted right x axis y axis) 344mm x 194mm
   3840x2160     48.00*+
   3200x1800     59.96    59.94  
   2880x1620     59.96    59.97  
   2560x1600     59.99    59.97  
   2560x1440     59.99    59.99    59.96    59.95  
   2048x1536     60.00  
   1920x1440     60.00  
   1856x1392     60.01  
   1792x1344     60.01  
   2048x1152     59.99    59.98    59.90    59.91  
   1920x1200     59.88    59.95  
   1920x1080     60.01    59.97    59.96    59.93  
   1600x1200     60.00  
   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  
HDMI-1-1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm
   1280x1024     60.02 +  75.02* 
   1920x1080     60.00    59.94  
   1152x864      75.00  
   1280x720      60.00    59.94  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08 

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