** Description changed: [Impact] gnome-control-center crashed when switching to mirror mode and monitors don't have matched resolution [Test case] Mirror mode is only an option if there are only 2 monitors connected even if one monitor is disabled. A laptop's internal screen counts as one of the monitors. - 1. Connected monitors to system which don't have same resolution. + This particular bug requires two screens that have a screen resolution + that they don't both share. (See comment 12 for an example). + + 1. Connect the monitors 2. Open the GNOME Settings app (gnome-control-center) 3. On the left sidebar, click Displays to switch to the Display panel 4. Switch to mirror mode 3. gnome-control-center won't crash [Where problems could occur] - It only modified the code related to mirror mode in Displays panel. For KK and LL check variable (best_mode) before using it. For Jammy, modified the way to find cloning mode and check the variable (best_mode) . The second patch already included in gnome-42. The risk will be low. + This only modifies the code related to mirror mode in Displays panel. + + For Lunar, check variable (best_mode) before using it. This patch is + backported from GNOME 45 Alpha. + + For Jammy, include the Lunar patch and modify the way to find cloning + mode. This second patch is backported from gnome-control-center 42. [Other info] Two Merge Request are related 1. Check best_mode exist before adding flag (https://gitlab.gnome.org/GNOME/gnome-control-center/-/merge_requests/1835) 2. Use virtual clone modes when mirroring (https://gitlab.gnome.org/GNOME/gnome-control-center/-/merge_requests/1376)
** Changed in: gnome-control-center (Ubuntu Lunar) Status: Confirmed => In Progress ** Changed in: gnome-control-center (Ubuntu Jammy) Status: New => In Progress ** Changed in: gnome-control-center (Ubuntu Jammy) Assignee: (unassigned) => Dirk Su (dirksu) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/2026228 Title: gnome-control-center crashed when switching to mirror mode and monitors don't have matched resolution To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/2026228/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs