提前感谢您的帮助。目前，我正在尝试将外接显示器（分辨率为 1920x1080）与我的笔记本电脑屏幕（具有 4k 显示屏）一起使用。目前，我的外接显示器位于我的笔记本电脑屏幕的右侧。
问题：目前外部显示器上的缩放比例不正确（图形渲染后比实际大得多）。
我尝试按照几个论坛帖子来使用 xrandr，最后使用了这个命令：
xrandr --output eDP-1-1 --mode 3840x2160 --output DP-1-1 --mode 1920x1080 --scale 2x2 --pos 3840x0 --panning 3840x2160+3840+0 --right-of eDP-1-1
此命令导致与平移属性相关的匹配不良的错误消息。见下文。
Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 29 (RRSetPanning) Serial number of failed request: 37 Current serial number in output stream: 37
我的显示器的输出是：
Screen 0: minimum 8 x 8, current 7680 x 2160, maximum 32767 x 32767
eDP-1-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
3840x2160 60.00*+ 59.98 59.97
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
DP-1-1 connected 3840x2160+3840+0 (normal left inverted right x axis y axis) 527mm x 296mm
1920x1080 60.00*+ 50.00 59.94
1920x1080i 60.00 50.00 59.94
1680x1050 59.88
1280x1024 60.02
1440x900 59.90
1280x800 59.91
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 70.07 60.00
800x600 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 66.67 60.00 59.95 59.94
720x400 70.08
DP-1-2 disconnected (normal left inverted right x axis y axis)
DP-1-3 disconnected (normal left inverted right x axis y axis)
由于我尝试了很多方法，我真的需要你的帮助。再次感谢你。:)