To really get to the bottom of this we would need to reproduce the freeze in a development environment.
In the meantime, I have one proposed fix that I think will help to avoid some Gnome Shell Xorg session freezes: https://gitlab.gnome.org/GNOME/mutter/merge_requests/216 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1807534 Title: Gnome Shell freezes randomly Status in gnome-shell package in Ubuntu: Incomplete Bug description: (on Ubuntu 18.04.1 LTS, all packages up do date) For about 5 days now, I've been experiencing random freezes of the X session. When this happens, I can still move the mouse pointer and it does change shape according to what it hovers above. Keystrokes or mouse clicks do not have any effect though. Alt-Ctrl-F1 just leads me to another visual login session, which I can log into, but the screen remains black. Pressing the power button does not lead to a controlled shutdown. I can remotely log into the system via SSH, but could not find anything amiss in Xorg.?.log or syslog or dmesg. This is on an AMD Ryzen with a Nvidia GTX1070 using the binary drivers. I tried upgrading from 390.77 to 390.87 from the drivers ppa, but that didn't make much of a difference. Curiously, at some point, I could trigger the freeze with the "eject" key on my keyboard. The overlay would not be completely rendered, only the grey box, but not the symbol. That works now, and my freezes are only a few times a day, not every 20 minutes. But they continue to occur. I'm not certain where to look for the cause of this, help would be appreciated. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1807534/+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
