[Bug 1434396] Re: Xserver does not start or freezes with systemd + lightdm
Thank you for reporting this bug to Ubuntu. Ubuntu 15.04 (vivid) reached end-of-life on February 4, 2016. See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in. ** Changed in: xorg-server (Ubuntu) Status: Triaged => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1434396 Title: Xserver does not start or freezes with systemd + lightdm To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1434396/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1434396] Re: Xserver does not start or freezes with systemd + lightdm
** No longer affects: lightdm ** Package changed: lightdm (Ubuntu) => xorg-server (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1434396 Title: Xserver does not start or freezes with systemd + lightdm To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1434396/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1434396] Re: Xserver does not start or freezes with systemd + lightdm
I saw similar issue when adding a 2nd screen to my 15.10 systemd + lightdm system, which had been happy with single screen. Also happy when systemd not used, even with 2 displays Booted OK, but on resume from suspend (usually after going to lock screen) things were completely hung with per-second repeats of Dec 1 01:13:00 grunt kernel: [ 591.465083] nouveau E[compiz[5704]] fail ttm_va lidate Dec 1 01:13:00 grunt kernel: [ 591.465092] nouveau E[compiz[5704]] validating bo list Dec 1 01:13:00 grunt kernel: [ 591.465118] nouveau E[compiz[5704]] validate: -12 ... Nouveau is kernel driver, but the issue seemed to come from compiz paging. Yet compiz behavior is directed by its clients. When I noticed 'service lightdm status' had warnings about libpam_kwallet5, I looked at how that was used. Found I had no pam-kwallet5, because I don't use kde/plasma. I did have kwallet4, which gnome depends on. So what was bitching about kwallet5??? Still not sure where the missing dpkg dependency on pam-kwallet5 should go, but it's definately needed -- I added pam-kwallet5 over ssh session and the hung displays immediately came back to life. Lightdm's pam usage of kwallet5 is allegedly always optional, as in /etc/pam.d/lightdm-greeter:132:authoptionalpam_kwallet5.so /etc/pam.d/lightdm-greeter:543:session optionalpam_kwallet5.so auto_start /etc/pam.d/lightdm:223:authoptionalpam_kwallet5.so /etc/pam.d/lightdm:675:session optionalpam_kwallet5.so auto_start But some defect makes it mandatory in a multi-display systemd setup. Perhaps it's a sequential overspecification in restore logic revealed by multi-display and system event handling. Don't yet understand, but adding the allegedly optional pam-kwallet5 fixed it -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1434396 Title: Xserver does not start or freezes with systemd + lightdm To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1434396/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1434396] Re: Xserver does not start or freezes with systemd + lightdm
Meanwhile, I've upgraded to 15.10. Now the system _mostly_ works, but let's say about every 5th boot the system freezes with black screen if systemd is used. Upstart always work. Interestingly in most cases systemd works as well, but not always. I cannot find any reason about this always changing behaviour if I try to boot multiple times. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1434396 Title: Xserver does not start or freezes with systemd + lightdm To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1434396/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1434396] Re: Xserver does not start on freezes with systemd + lightdm
** Summary changed: - Xserver does not start on boot (low-graphics mode) + Xserver does not start on freezes with systemd + lightdm ** Summary changed: - Xserver does not start on freezes with systemd + lightdm + Xserver does not start or freezes with systemd + lightdm -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1434396 Title: Xserver does not start or freezes with systemd + lightdm To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1434396/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
