FYI, in case anyone wants to add their monitor (and whether it succeeds or fails at suspending with the Ubuntu raspi kernel) to this ticket:
$ cp /sys/devices/platform/gpu/drm/card1/card1-HDMI-A-1/edid hdmi0-monitor.edid $ cp /sys/devices/platform/gpu/drm/card1/card1-HDMI-A-2/edid hdmi1-monitor.edid As you may guess, hdmi0-monitor.edid is the EDID for the monitor plugged into HDMI0 (the socket closest to the USB-C power port on the Pi4, and the socket closest to the uSD slot on the Pi400), whilst hdmi1-monitor.edid is the EDID for the monitor plugged into HDMI1. If you have no monitor connected to a socket, you'll still get an EDID file but it'll be 0 bytes. A valid EDID file should be 256 bytes (or more? I forget the details of EDID, but there's some extended blocks I vaguely recall). Upload valid EDID files to https://www.edid.tv/edid/upload/binary/ if you wish (bear in mind this will share the serial # of your monitor but I don't think there's any particular security risk in that), and add the link here along with whether or not this particular monitor suspends successfully or not. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1998716 Title: [raspi] Ubuntu 22.10 does not turn off monitor Status in linux-raspi package in Ubuntu: Incomplete Status in mutter package in Ubuntu: Confirmed Bug description: I am using Ubuntu Desktop 22.10 on Raspberry Pi 4, and noticed a strange behaviour of the screen saver. In settings -> energy -> power saving options I selected Screen Blank after 5 minutes. After 5 minutes of inactivity, the screen goes blank, the monitor says No Signal and turns off, but a few seconds after it turns on again, showing a completely black screen. The desired behaviour here is that Ubuntu sends no signal to the monitor, so the monitor goes into low-consumption mode. But this is not happening, the monitor is on and showing a black screen. I wonder how to solve this problem, especially given the current energy situation in Europe. This bug is related to the Ubuntu 22.04 LTS and 22.10 version. ProblemType: Bug DistroRelease: Ubuntu 22.10 Package: gnome-shell 43.0-1ubuntu2 ProcVersionSignature: Ubuntu 5.19.0-1009.16-raspi 5.19.7 Uname: Linux 5.19.0-1009-raspi aarch64 ApportVersion: 2.23.1-0ubuntu3 Architecture: arm64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Sun Dec 4 21:31:27 2022 DisplayManager: gdm3 GsettingsChanges: ImageMediaBuild: 20221018.1 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=pl_PL.UTF-8 SHELL=/bin/bash RelatedPackageVersions: mutter-common 43.0-1ubuntu4 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1998716/+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
