You have been subscribed to a public bug: This issue is happening with Ubuntu 18.04 and 20.04 in a Dell Inspiron 7373. When the screen is turned off (so, the suspend or screen lock features are affected), the system freeze and I need to force the laptop turn off and on again. There are some cases when it turn off the screen without issues, but most of the time it freezes. Even "SysRq REISUB" does not work for rebooting when system crash. I can reproduce the issue using `xset dpms force off`.
Initially this bug report was filled thinking it was a suspend issue: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1832144 Syslog or systemd journal does not provide any error information about the crash. "lsb_release -rd" output: Description: Ubuntu 20.04 LTS Release: 20.04 ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: bot-comment -- Ubuntu 20.04 freeze on Dell inspiron 7373 when screen is turned off https://bugs.launchpad.net/bugs/1878007 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- 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
