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display-resolution
amd-graphics
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URL:
https://askubuntu.com/q/1200715
Title:
Display Resolution Setting is Lost After Wake from Suspend
ID:
/2020/01/04/Display-Resolution-Setting-is-Lost-After-Wake-from-Suspend
Created:
January 4, 2020
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September 15, 2024
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From time to time the Window Manager will reset my displays as well. So as to not have to go manually reset them (or reboot) I’ve created a function in ~/.bashrc to do this for me:
xreset () {
# Reset xrandr to normal, first use: xrandr | grep " connected "
# HDMI-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 1107mm x 623mm
# eDP-1-1 connected primary 1920x1080+3840+2160 (normal left inverted right x axis y axis) 382mm x 215mm
# DP-1-1 connected 3840x2160+1920+0 (normal left inverted right x axis y axis) 1600mm x 900mm
xrandr --output HDMI-0 --mode 1920x1080 --pos 0x0 --rotate normal \
--output eDP-1-1 --mode 1920x1080 --pos 3840x2160 --rotate normal \
--primary \
--output DP-1-1 --mode 3840x2160 --pos 1920x0 --rotate normal
} # xreset
Whenever the screens are “wacky” I open a terminal and type xreset.
The first step for you is to create a similar function. The next step is to have it automatically called when suspending from resume. To do that create a script in /lib/systemd/system-sleep and mark it executable.
Of course the desirable solution is to fix the Window Manager (Unity, GDM, etc) but if that isn’t possible this band-aid approach can be taken.