For me the correct description of the bug was most likely given in [1]. When I use my laptop's screen, everything works fine. When I am using a Philips 275E UHD display, the behavior described in this thread appears.
Chances are that the KMS driver is doing something wrong. I couldn't find an item on the Linux Kernel mailing list that addresses this (though it has been difficult to search). If someone knows more about how to debug this and file an issue, I'm all ears. [1]: https://bugs.launchpad.net/ubuntu/+source/linux- raspi/+bug/1998716/comments/18 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1971434 Title: Display powersave only blanks, but does not turn off Status in gnome-settings-daemon package in Ubuntu: Confirmed Status in mutter package in Ubuntu: Confirmed Bug description: Recently upgraded to Ubuntu 22.04, and it seems like the power-saving feature in Gnome 42 does not actually turn off the screen(s) after X minutes, but just blanks them. When I manually run `xset dpms force off`, they do properly turn off and go to powersave mode. 1) Description: Ubuntu 22.04 LTS Release: 22.04 2) gnome-settings-daemon: Installed: 42.1-1ubuntu2 Candidate: 42.1-1ubuntu2 3) In Settings -> Power -> Screen Blank, set the inactivity period to 5 minutes. After 5 minutes, the screens should turn off. 4) Screens go black, but remain active and consume (too much) power. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu82 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-bionic-amd64-20190418-59+beaver-osp1+X00 DistroRelease: Ubuntu 22.04 InstallationDate: Installed on 2020-07-04 (667 days ago) InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20190418-12:10 Package: gnome-settings-daemon 42.1-1ubuntu2 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30 Tags: jammy Uname: Linux 5.15.0-27-generic x86_64 UpgradeStatus: Upgraded to jammy on 2022-04-30 (3 days ago) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo vboxusers video wireshark _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1971434/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
