Public bug reported: [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 [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. ** Affects: hwe-next Importance: Undecided Status: New ** Affects: xorg-server (Ubuntu) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: xorg-server (Ubuntu Jammy) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: xorg-server (Ubuntu Kinetic) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: xorg-server (Ubuntu Lunar) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Tags: oem-priority originate-from-1989829 somerville ** Also affects: xorg-server (Ubuntu Kinetic) Importance: Undecided Status: New ** Also affects: xorg-server (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: xorg-server (Ubuntu Lunar) Importance: Undecided Status: New ** Changed in: xorg-server (Ubuntu Jammy) Status: New => In Progress ** Changed in: xorg-server (Ubuntu Kinetic) Status: New => In Progress ** Changed in: xorg-server (Ubuntu Lunar) Status: New => In Progress -- 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 xorg-server package in Ubuntu: In Progress Status in xorg-server source package in Jammy: In Progress Status in xorg-server source package in Kinetic: In Progress 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 [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
