Hello Kai-Heng, or anyone else affected, Accepted mutter into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/mutter/3.36.9-0ubuntu0.20.04.1 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- focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-focal. 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. ** Tags added: verification-needed verification-needed-focal -- 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/1905825 Title: [SRU] Disable CRTCs when system becomes headless Status in HWE Next: New Status in OEM Priority Project: New Status in mutter package in Ubuntu: Fix Released Status in mutter source package in Focal: Fix Committed Status in mutter source package in Groovy: Fix Committed Status in mutter source package in Hirsute: Fix Released Bug description: [Impact] On new Intel SoCs, after all connectors are unplugged and the system becomes headless, it cannot detect monitor hotplug event from type-c port. [Fix] https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1561 Based on "drm/i915 Intel GFX Driver, Hotplug" [1]: "Finally, the userspace is responsible for triggering a modeset upon receiving the hotplug uevent, disabling or enabling the crtc as needed." [Test] Unplug type-c monitor from an Intel Tiger Lake desktop. Replug the monitor back, monitor is blank. With the fix applied, the system can detect monitor again. [Where problems could occur] This fix disables CRTCs when there's no monitor, if driver has trouble dealing with it, we may see something break. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1905825/+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