I tested the new packages in focal-proposed on a ThinkPad P15s, which only have one resolution before. and the new packages in focal-proposed works. The details:
0. the resolution supported, only one: 1920x1080 1. the original packages: xserver-common 2:1.20.8-2ubuntu2 xserver-xephyr 2:1.20.8-2ubuntu2 xserver-xorg-core 2:1.20.8-2ubuntu2 xserver-xorg-legacy 2:1.20.8-2ubuntu2 xwayland 2:1.20.8-2ubuntu2 2. open focal-proposed channel and "sudo apt update". 3. sudo apt install xserver-common xserver-xephyr xserver-xorg-core xserver-xorg-legacy xwayland 4. reboot 5. the new packages installed: xserver-common 2:1.20.8-2ubuntu2.2 xserver-xephyr 2:1.20.8-2ubuntu2.2 xserver-xorg-core 2:1.20.8-2ubuntu2.2 xserver-xorg-legacy 2:1.20.8-2ubuntu2.2 xwayland 2:1.20.8-2ubuntu2.2 6. check the resolutions supported now: 1920x1080, 1680x1050, 1600x1024, 1400x1050....., total 23 resolutions supported now. ** Tags removed: verification-needed-focal ** Tags added: verification-done-focal -- 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/1883497 Title: Only timing mode list in EDID supported on continuous freq monitors Status in HWE Next: New Status in X.Org X server: New Status in xf86-video-intel: Unknown Status in xorg-server package in Ubuntu: Fix Released Status in xorg-server source package in Bionic: Confirmed Status in xorg-server source package in Focal: Fix Committed Bug description: [Impact] Some new laptop display set EDID continuous freq bit 1. Then Xorg only uses the timing modes defined in EDID, no other modes are shown on Xorg. Upstream Bug: https://gitlab.freedesktop.org/drm/intel/-/issues/313 Fix of Xorg in merge request: https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/421 https://cgit.freedesktop.org/xorg/xserver/commit/?id=6a79a737e2c0bc730ee693b4ea4a1530c108be4e this is required to support new laptop models which use such panels [Test case] Test that a proper list of modes is shown with a panel that uses the new EDID. [Regression potential] The patch retains the previous code path for setting modes on GTF-able monitors, and only adds support for non-GTF monitors. So in that sense there shouldn't be any regression potential, this has been reviewed by an upstream expert. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1883497/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

