$ sudo nano /etc/gdm/custom.conf
[daemon]
# Uncomment the line below to force the login screen to use Xorg
WaylandEnable=false
$ cvt 1920 1080
# 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz
Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
$ xrandr --newmode "1920x1080" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
$ xrandr --addmode Virtual1 "1920x1080"
$ xrandr --output Virtual1 --mode "1920x1080"
Literatur
sudo nano /etc/gdm/custom.conf
cvt 1920 1080
xrandr --newmode "1920x1080" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
xrandr --addmode Virtual1 "1920x1080"
xrandr --output Virtual1 --mode "1920x1080"
Tags: Fedora xrandr