[Bug 2153478] Re: External HDMI monitor flickers on GNOME Wayland hybrid Intel/NVIDIA; fixed by MUTTER_DEBUG_MULTI_GPU_FORCE_COPY_MODE
*** This bug is a duplicate of bug 2152207 *** https://bugs.launchpad.net/bugs/2152207 Thanks. It looks like you're experiencing bug 2152207 although the log ends too soon to fully confirm it. ** This bug has been marked a duplicate of bug 2152207 Failed to lock front buffer on /dev/dri/card1: gbm_surface_lock_front_buffer failed | Failed to query buffer age, got error 3003 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2153478 Title: External HDMI monitor flickers on GNOME Wayland hybrid Intel/NVIDIA; fixed by MUTTER_DEBUG_MULTI_GPU_FORCE_COPY_MODE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2153478/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 2153478] Re: External HDMI monitor flickers on GNOME Wayland hybrid Intel/NVIDIA; fixed by MUTTER_DEBUG_MULTI_GPU_FORCE_COPY_MODE
The flickering happened again today around 12:11 local time. I captured the journal immediately afterward with: journalctl -b0 > journal-flicker.txt I have attached the full journal. I noticed these repeated gnome-shell messages shortly before the flicker became visible: May 29 12:09:05 gnome-shell[5391]: Failed to lock front buffer on /dev/dri/card1: gbm_surface_lock_front_buffer failed May 29 12:09:21 gnome-shell[5391]: Failed to lock front buffer on /dev/dri/card1: gbm_surface_lock_front_buffer failed May 29 12:09:44 gnome-shell[5391]: Failed to lock front buffer on /dev/dri/card1: gbm_surface_lock_front_buffer failed This was after installing the latest kernel and Mutter updates. I had not run the MUTTER_DEBUG_MULTI_GPU_FORCE_COPY_MODE workaround after reboot, so the flickering occurred without the workaround active. After collecting the log, I re-enabled the workaround. ** Attachment added: "journal-flicker.txt" https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2153478/+attachment/5974359/+files/journal-flicker.txt -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2153478 Title: External HDMI monitor flickers on GNOME Wayland hybrid Intel/NVIDIA; fixed by MUTTER_DEBUG_MULTI_GPU_FORCE_COPY_MODE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2153478/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 2153478] Re: External HDMI monitor flickers on GNOME Wayland hybrid Intel/NVIDIA; fixed by MUTTER_DEBUG_MULTI_GPU_FORCE_COPY_MODE
I think this might turn out to be bug 2152207, but the journal will confirm it. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2153478 Title: External HDMI monitor flickers on GNOME Wayland hybrid Intel/NVIDIA; fixed by MUTTER_DEBUG_MULTI_GPU_FORCE_COPY_MODE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2153478/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 2153478] Re: External HDMI monitor flickers on GNOME Wayland hybrid Intel/NVIDIA; fixed by MUTTER_DEBUG_MULTI_GPU_FORCE_COPY_MODE
Thanks for the bug report. Please reproduce the flickering again and note the time and date it happened at. Then run: journalctl -b0 > journal.txt and attach the resulting text file here. ** Changed in: mutter (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2153478 Title: External HDMI monitor flickers on GNOME Wayland hybrid Intel/NVIDIA; fixed by MUTTER_DEBUG_MULTI_GPU_FORCE_COPY_MODE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2153478/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
