xrandr 的 --scale 选项在我的 DisplayLink 显示器上不起作用。屏幕闪烁然后重新亮起，但比例没有变化。其他人可以用自己的硬件确认/否认这个问题吗？这可能是 DisplayLink 驱动程序的一个错误？我有一台 Kensington SD3000v。
$ uname -r
4.7.0-1-ARCH
$ xrandr --version
xrandr program version 1.5.0
Server reports RandR version 1.5
$ yaourt -Q xorg-server
extra/xorg-server 1.18.4-1 (xorg)
$ yaourt -Q displaylink
local/displaylink 1.1.62-2
$ lspci | grep V
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960M] (rev ff)
$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x49 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 4 outputs: 6 associated providers: 1 name:Intel
Provider 1: id: 0x149 cap: 0x2, Sink Output crtcs: 1 outputs: 1 associated providers: 1 name:modesetting
$ xrandr --current | grep ^[^\ ]
Screen 0: minimum 8 x 8, current 3840 x 3240, maximum 32767 x 32767
eDP1 connected 3840x2160+0+1080 (normal left inverted right x axis y axis) 350mm x 190mm
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected 1728x216+0+0 (normal left inverted right x axis y axis) 475mm x 267mm
答案1
其他用户随后确认了此问题（并投票赞成），网址为此 Display Link 功能建议。