Thanks for working on this! The discussion about unplug events being the cause made me wonder whether this is also the source of a similar problem I have as well: On my ThinkPad T14 with Ubuntu 22.04 and Wayland, closing the lid wakes the notebook up from sleep mode. I.e., if I enter standby and then close the lid, the notebook wakes up. If I directly close the lid, the notebook enters standby mode and stays there. Of course it could also be that this is due to a different cause, but I wanted to mention it here in case it helps. I let "udevadm monitor" run through a "standby - close lid - wake up" cycle but the only "bind|unbind|add|remove" messages that it showed were for USB devices (plus some "change" messages for drm/card1 and my NVME disk).
For the problem with the HDMI monitor on my other machine I could produce an event log tomorrow if desired, or perform other debugging you would like to see. For me the problem also happens reliably on my other machine. (Though interestingly, on the monitor where my main machine shows the problem, my ThinkPad does not show it. Both run Ubuntu 22.04 Wayland and have an AMD GPU.) -- 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 Mutter: New Status in gnome-settings-daemon package in Ubuntu: Triaged Status in mutter package in Ubuntu: Triaged Bug description: [ Impact ] On some machines when the screen blanks, the LCD backlight stays on. [ Workarounds (reported to work by some people) ] * Configure the monitor (in its own menus) to not auto-switch inputs. * Change from HDMI to DisplayPort cables. * Disable HDMI audio output. [ Test Plan ] 0. Make sure you're using an LCD (not OLED) so you can see if the backlight is on. 1. In Settings -> Power -> Screen Blank, set the inactivity period to 1 minute. 2. Verify after 1 minute that the screen is blank and the backlight is also visibly off. [ Where problems could occur ] [ Other Info ] To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+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
