First, please test latest drm-tip kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/current/
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1922540 Title: 99.98Hz display mode is sometimes missing on USB-C (DisplayPort) external monitor, which resets the display layout Status in linux package in Ubuntu: Incomplete Bug description: When rebooting with USB-C external monitor (3440x1440) attached, display orientation in "gnome-control-center display" resets requiring one to reposition the windows on boot. Very annoying. In addition, refresh rate drop down for external display sometimes goes missing when setting refresh rate to 100hz instead of default 60?Hz. Refresh rate listing and dropdown box disappears until setting monitor resolution to different resolution and back or reboot. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: gnome-control-center 1:3.38.5-1ubuntu1 ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7 Uname: Linux 5.11.0-13-generic x86_64 ApportVersion: 2.20.11-0ubuntu61 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Mon Apr 5 01:09:38 2021 InstallationDate: Installed on 2021-04-05 (0 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Beta amd64 (20210331.1) ProcEnviron: LANGUAGE=en_CA:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_CA.UTF-8 SHELL=/bin/bash SourcePackage: gnome-control-center UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1922540/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
