I have the same problem, but with Ubuntu 22. Using xset does resolve the issue, but then the problem is that when my computer does go to sleep, the monitor does not power down -- the screen is just blank but still powered.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe-5.15 in Ubuntu. https://bugs.launchpad.net/bugs/2002358 Title: Screen turned off after seconds of inactivity, fixed by xset -dpms; bug depending on kernel version? Status in linux-signed-hwe-5.15 package in Ubuntu: Confirmed Bug description: Now and then I have the problem, that the screen turns off after seconds of keyboard or mouse inactivity. I think that it changes with kernel versions but I'm not 100% sure that kernel version is the cause. The annoying bug is present for some time then it's gone, and after a while, the problem is back. Two days ago following packages were installed or updated, since then the problem is there again: Install: linux-hwe-5.15-headers-5.15.0-57:amd64 (5.15.0-57.63~20.04.1, automatic), linux-image-5.15.0-57-generic:amd64 (5.15.0-57.63~20.04.1, automatic), linux-headers-5.15.0-57-generic:amd64 (5.15.0-57.63~20.04.1, automatic), linux-modules-extra-5.15.0-57-generic:amd64 (5.15.0-57.63~20.04.1, automatic), linux-modules-5.15.0-57-generic:amd64 (5.15.0-57.63~20.04.1, automatic) Upgrade: linux-headers-generic-hwe-20.04:amd64 (5.15.0.56.62~20.04.22, 5.15.0.57.63~20.04.23), update-manager-core:amd64 (1:20.04.10.10, 1:20.04.10.11), linux-libc-dev:amd64 (5.4.0-135.152, 5.4.0-136.153), libcurl4:amd64 (7.68.0-1ubuntu2.14, 7.68.0-1ubuntu2.15), libksba8:amd64 (1.3.5-2ubuntu0.20.04.1, 1.3.5-2ubuntu0.20.04.2), update-manager:amd64 (1:20.04.10.10, 1:20.04.10.11), linux-image-generic-hwe-20.04:amd64 (5.15.0.56.62~20.04.22, 5.15.0.57.63~20.04.23), gir1.2-nautilus-3.0:amd64 (1:3.36.3-0ubuntu1.20.04.1, 1:3.36.3-0ubuntu1.20.04.2), linux-generic-hwe-20.04:amd64 (5.15.0.56.62~20.04.22, 5.15.0.57.63~20.04.23), libfabric1:amd64 (1.6.2-3, 1.6.2-3ubuntu0.1), nautilus:amd64 (1:3.36.3-0ubuntu1.20.04.1, 1:3.36.3-0ubuntu1.20.04.2), libnautilus-extension1a:amd64 (1:3.36.3-0ubuntu1.20.04.1, 1:3.36.3-0ubuntu1.20.04.2), python3-update-manager:amd64 (1:20.04.10.10, 1:20.04.10.11), nautilus-data:amd64 (1:3.36.3-0ubuntu1.20.04.1, 1:3.36.3-0ubuntu1.20.04.2), curl:amd64 (7.68.0-1ubuntu2.14, 7.68.0-1ubuntu2.15), libcurl3-gnutls:amd64 (7.68.0-1ubuntu2.14, 7.68.0-1ubuntu2.15) Today I figured out that xset -dpms solves the problem but xset s off does not. In gnome-control-center -> Power I have the following settings: Power Saving: Blank Screen -> 15 minutes ( Selecting Never doesn't change anything.) Suspend & Power Button: Automatic Suspend: On, Delay 15 minutes Power Button Action: Power off I'm using Description: Ubuntu 20.04.5 LTS Release: 20.04 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.15.0-57-generic 5.15.0-57.63~20.04.1 ProcVersionSignature: Ubuntu 5.15.0-57.63~20.04.1-generic 5.15.74 Uname: Linux 5.15.0-57-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.25 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Jan 9 22:47:36 2023 InstallationDate: Installed on 2022-01-01 (372 days ago) InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819) SourcePackage: linux-signed-hwe-5.15 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.15/+bug/2002358/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
