Kubuntu 20.04 扩展显示。笔记本电脑屏幕没有触摸。外屏是触摸屏。当触摸外部屏幕的中心时，鼠标指向两个屏幕之间的边界。它的计算方式好像触摸屏的宽度是两个屏幕的宽度。
如何使触摸屏仅适合外部屏幕？此外，它是一个便携式屏幕。所以我想在断开连接之间进行永久更改。
sza@sza-Lenovo-ThinkBook-15-IIL:~$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Logitech M705 id=12 [slave pointer (2)]
⎜ ↳ Logitech K750 id=13 [slave pointer (2)]
⎜ ↳ G2Touch Multi-Touch by G2TSP id=9 [slave pointer (2)]
⎜ ↳ Elan Touchpad id=14 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Integrated Camera: Integrated C id=11 [slave keyboard (3)]
↳ Ideapad extra buttons id=15 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=16 [slave keyboard (3)]
↳ Logitech K750 id=17 [slave keyboard (3)]
sza@sza-Lenovo-ThinkBook-15-IIL:~$ xinput list-props 9
Device 'G2Touch Multi-Touch by G2TSP':
Device Enabled (172): 1
Coordinate Transformation Matrix (174): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Calibration Matrix (312): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Calibration Matrix Default (313): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Send Events Modes Available (295): 1, 0
libinput Send Events Mode Enabled (296): 0, 0
libinput Send Events Mode Enabled Default (297): 0, 0
Device Node (298): "/dev/input/event4"
Device Product ID (299): 10900, 22093
sza@sza-Lenovo-ThinkBook-15-IIL:~$ xrandr
Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1920x1080 60.06*+ 60.01 59.97 59.96 59.93
...
DP-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 344mm x 195mm
1920x1080 60.00*+ 50.00 59.94 30.00 29.97
...
HDMI-1 disconnected (normal left inverted right x axis y axis)