Upgraded Jammy to xserver-xorg-core 2:21.1.3-2ubuntu2.4, switching to different resolutions work well.
Upgrade Kinetic to xserver-xorg-core 2:21.1.4-2ubuntu1.2, switching to different resolutions also work well. ** Tags removed: verification-needed-jammy verification-needed-kinetic ** Tags added: verification-done-jammy verification-done-kinetic -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1996490 Title: Failed to set resolutions with 2.5k@90Hz panels Status in HWE Next: New Status in X.Org X server: New Status in xorg-server package in Ubuntu: In Progress Status in xorg-server source package in Jammy: Fix Committed Status in xorg-server source package in Kinetic: Fix Committed Status in xorg-server source package in Lunar: In Progress Bug description: [Impact] Failed to set resolutions with new 2.5k@90Hz panels, the reported resolutions from xrandr are all invalid and got blank screen. [Fix] Below commit re-calculate clock and refresh rate fixes this issue. https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/993 [Test] Verified on 2.5k@90Hz panel laptops and my laptop 1920x1080@60Hz Will be tested in proposed for wider range. [Where problems could occur] Not sure if the re-calculated clock and refresh rate works for all different panels, need to verify it wider in proposed. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1996490/+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