Public bug reported:
g-c-c is unable to change the resolution on my external 2560x1440
monitor to 1920x1080 - when I try, the monitor turns off.
However, the command "xrandr --output HDMI-1 --mode 1920x1080" does
successfully change the resolution.
xrandr for the monitor shows:
HDMI-1 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm
x 336mm
2560x1440 59.95*+
1920x1080 60.00 50.00 59.94 30.00 25.00 24.00 29.97
23.98
1920x1080i 60.00 50.00 59.94
1600x1200 60.00
1280x1024 75.02 60.02
1280x960 60.00
1360x768 60.02
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
800x600 75.00 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08
I tried changing the resolution to 1600x1200 using g-c-c and this did
work.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-control-center 1:3.36.4-0ubuntu1
Uname: Linux 5.8.1-050801-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Aug 20 11:28:08 2020
InstallationDate: Installed on 2019-07-01 (415 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190606)
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to focal on 2019-12-08 (255 days ago)
** Affects: gnome-control-center (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal third-party-packages
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https://bugs.launchpad.net/bugs/1892296
Title:
gnome-control-center cannot change resolution of external monitor
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