[Bug 1873401] Re: xorg lock-up on GPU hotplug
OK, I'm totally sure it's a freeze. Moreover, gnome-shell stack trace looks normal, event loop runs just fine. I can generate and provide core file if needed. What I managed to debug so far, is that in case of multiple /dev/dri/cardX being created frame_cb in meta-stage-x11.c:296 is not called which simply results in the screen being stalled. Debugging it up the stack trace leads to conclusion, that cogl_glib_source_dispatch in cogl-glib-source.c:133 is not called at all for some reason. Natural assumption would be to track that function down, unless there's sth more you can recommend me? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1873401 Title: xorg lock-up on GPU hotplug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1873401/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1873401] Re: xorg lock-up on GPU hotplug
Alright. Please first ensure you have followed all the steps in comment #3. Then if there's still no evidence of a crash we can assume it's a freeze. The next thing to try then is to force it to dump core during the freeze (from an ssh login) by sending some signal to the process like: kill -USR2 PID Then we would be able to analyse it as a crash (assuming the automated crash reporting picks it up). But if you want to do the debugging locally yourself then feel free. Just paste the stack trace you find here so we can see what you see. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1873401 Title: xorg lock-up on GPU hotplug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1873401/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1873401] Re: xorg lock-up on GPU hotplug
Point is, there is no crash file. Graphical environment is not responsive, but nothing seems to have crashed. If there's a stacktrace or core file needed, no problem, I can rebuild in debug mode, attach debugger and gather those. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1873401 Title: xorg lock-up on GPU hotplug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1873401/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1873401] Re: xorg lock-up on GPU hotplug
If the HW cursor still moves then it's not Xorg that's locked/frozen/crashed, it is gnome-shell (via the mutter project). ** Package changed: xorg-server (Ubuntu) => mutter (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1873401 Title: xorg lock-up on GPU hotplug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1873401/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1873401] Re: xorg lock-up on GPU hotplug
Thank you for taking the time to report this bug and helping to make Ubuntu better. It sounds like some part of the system has crashed. To help us find the cause of the crash please follow these steps: 1. Look in /var/crash for crash files and if found run: ubuntu-bug YOURFILE.crash Then tell us the ID of the newly-created bug. 2. If step 1 failed then look at https://errors.ubuntu.com/user/ID where ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine. Do you find any links to recent problems on that page? If so then please send the links to us. 3. If step 2 also failed then apply the workaround from bug 994921, reboot, reproduce the crash, and retry step 1. Please take care to avoid attaching .crash files to bugs as we are unable to process them as file attachments. It would also be a security risk for yourself. ** Changed in: mutter (Ubuntu) Status: New => Incomplete ** Tags added: displaylink -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1873401 Title: xorg lock-up on GPU hotplug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1873401/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
