I have deleted ~/.config/monitors.xml, then rebooted and logged in again. The file is not recreated automatically, it seems? The new default display configuration for Gnome is now already 4K@60 Hz. I have waited once, until the displays go into suspend, then resumed, and the problem appeared immediately again: The display configuration is distorted.
I'm using already a HDMI 2.1 cable (https://www.amazon.de/dp/B0CQP2XNYR) that should easily support 4K@60Hz, and I did have the same problem with the previous cable. Do you really think changing the cable again is necessary? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/2081199 Title: [nvidia] On high resolution modes, after screen resume from power saving, the display configuration gets lost, and sometimes Gnome crashes Status in gnome-shell package in Ubuntu: New Bug description: This is a follow-up issue from https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers- common/+bug/2075525, and some of the information from the earlier issue may apply here. I have configured the host screen with two monitors extending the desktop. They are both configured at 3840x2160 @ 60Hz, scale 200%, fractional scaling: no. I'm using a HDMI 2.1 cable on the one monitor, and a DisplayPort cable on the other monitor. My graphics card lacks a second display port connector, so I can not try if the problem would persist with two DisplayPort cables. After a period of inactivity, the screens get blanked as configured. When I move the mouse and the screens unblank, the display configuration is changed. I have observed different behavior of the changed display configuration: - most commonly, the displays change into mirror mode instead of joined mode. - sometimes, a third, small display appears on one of the sides. - sometimes, the second monitor stays blank - sometimes, Gnome crashes I confirm that I have ubuntu-drivers-common:amd64/noble-updates 1:0.9.7.6ubuntu3.1, so this should have the issue fixed? Attached is an excerpt from syslog, from around the time then I unlocked the display coming back from suspend, until the Gnome crash. System information: No LSB modules are available. Description: Ubuntu 24.04.1 LTS Release: 24.04 --- ProblemType: Bug ApportVersion: 2.28.1-0ubuntu3.1 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 24.04 InstallationDate: Installed on 2021-05-28 (1216 days ago) InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) NonfreeKernelModules: nvidia_modeset nvidia Package: gnome-shell 46.0-0ubuntu6~24.04.4 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 6.8.0-45.45-generic 6.8.12 RelatedPackageVersions: mutter-common 46.2-1ubuntu0.24.04.1 Tags: noble Uname: Linux 6.8.0-45-generic x86_64 UpgradeStatus: Upgraded to noble on 2024-09-05 (20 days ago) UserGroups: adm cdrom dip docker lpadmin netdev plugdev render sudo users _MarkForUpload: True modified.conffile..etc.default.apport: # set this to 0 to disable apport, or to 1 to enable it # you can temporarily override this with # sudo service apport start force_start=1 enabled=0 mtime.conffile..etc.default.apport: 2024-08-28T12:29:47.196272 mtime.conffile..etc.init.d.apport: 2024-07-22T16:59:07 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2081199/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp