I have uploaded the fix to the review queue for 19.10: https://launchpad.net/ubuntu/eoan/+queue?queue_state=1
When it is accepted, you will be asked to test again, this time the package in -proposed repository. It will be needed to allow the fix to be officially released. ** Description changed: + [Impact] + This bug affects users who are using the GNOME Flashback session and multiple monitors. GNOME Flashback may crash when a new monitor is connected or turned on. + + [Test Case] + See comment 3: <https://bugs.launchpad.net/ubuntu/+source/gnome-flashback/+bug/1852649/comments/3>. + + It is better to try connecting a different monitor multiple times, as + the crash may be happening randomly (if current_mode is already NULL it + will not happen). + + [Proposed Fix] + The proposed fix is a backport of the following upstream commit: + https://gitlab.gnome.org/GNOME/gnome-flashback/commit/26a4c9f6cfd78012 + + It is already fixed in Ubuntu Focal as part of gnome-flashback 3.34.2 + upstream release. + + [Regression Potential] + The fix consists of initializing a single pointer that was previously not initialized, so I cannot imagine what regressions it may cause. Anyway, potential regressions will be limited to the code working with monitors. + + [Original Description] 1) 19.10 2) 3.34.0-1ubuntu1 3) No segfault, not signed out 4) I suspended last night, closed lid, then this morning I tried something different: plugged in first, opened laptop which woke it up, external display turned on, then shortly I got signed out or it locked up (had to `ctrl+alt+del`, forgot which happened this time around, pretty sure signed out then locked up) ** Also affects: gnome-flashback (Ubuntu Eoan) Importance: Undecided Status: New ** Changed in: gnome-flashback (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1852649 Title: Segfaults when connecting to Thunderbolt dock/external monitir To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-flashback/+bug/1852649/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs