Hello Kai-Heng, or anyone else affected, Accepted mutter into jammy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu6 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed- jammy to verification-done-jammy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-jammy. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: mutter (Ubuntu Jammy) Status: In Progress => Fix Committed ** Tags added: verification-needed-jammy -- 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/2051074 Title: Mirror mode doesn't work when panel only supports one refresh rate with reduced blanking Status in HWE Next: New Status in OEM Priority Project: New Status in mutter package in Ubuntu: Fix Committed Status in mutter source package in Jammy: Fix Committed Status in mutter source package in Mantic: Fix Committed Status in mutter source package in Noble: Fix Committed Bug description: [Impact] On systems equipped with reduced blanking panel, mirror mode can result to no image on external monitor. The reason is due to current fallback modes don't have pixelclock for reduced blanking, so inadequate refresh rate is used to mode set, and result with atomic commit failure. [Fix] https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3449 Add reduced blanking (RB) to fallback modes, so mutter can use RB mode to meet pixelclock requirement in order to pick the right refresh rate. [Test] Connect an external monitor to affected system. Use the monitor hotkey to switch to mirror mode or use GNOME control center to choose mirror mode. With the patch included, the issue is no longer observed. [Where problems could occur] The modelines of reduced blanking have reversed Hsync and Vsync flags, so if the driver doesn't handle those flags correctly, the atomic modeset/commit may fail. I haven't observe any issue on Intel/AMD/Nvidia GPU so far. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2051074/+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
