** Description changed: - I logged into a Unity session on a Quantal i386 system with old hardware - --an Nvidia GeForce 5200 graphics card. The screen flickered yellowish, - then went to black. There was no visible interface. I restarted lightdm - to get back to the graphical login screen. Soon after, I found that - unity-greeter had crashed. I'm guessing that this is secondary to the - video incompatibility rather than the cause of it, but it is - specifically the crash in unity-greeter that I'm reporting here. + On a Quantal i386 system, the LightDM login screen quit without warning + as I started entering my password. This happened a few times in a row, + but it had not happened the previous time I'd run lightdm, and it didn't + happen any subsequent times. (I'd recently stopped and restarted the + lightdm service, and I did that again to overcome the problem; then the + greeter worked and I was able to log in.) + + I discovered soon afterwards that unity-greeter had crashed. I presume + this corresponds to one of the times lightdm quit as I started to enter + my password. + + In case it's relevant, I'd previously logged into a Unity session. This + system has old hardware--an Nvidia GeForce 5200 graphics card. The + screen had flickered yellowish, then went to black. There was no visible + interface. I restarted lightdm to get back to the graphical login + screen. Please note that this is a description of the events that led me + to run "sudo stop lightdm" followed by "sudo start lightdm" the first + time, leading to a state where unity-greeter crashed. I'm not sure if + the problems I had with Unity itself are relevant, and I understand they + are probably not since unity-greeter is not really related to Unity + except in that it is themed similarly. + + Please note that this bug report is for the unity-greeter crash and + *not* for the graphics issue. ProblemType: Crash DistroRelease: Ubuntu 12.10 Package: unity-greeter 12.10.4-0ubuntu5.1 ProcVersionSignature: Ubuntu 3.5.0-26.42-generic 3.5.7.6 Uname: Linux 3.5.0-26-generic i686 ApportVersion: 2.6.1-0ubuntu10 Architecture: i386 Date: Tue Mar 19 15:49:06 2013 ExecutablePath: /usr/sbin/unity-greeter InstallationDate: Installed on 2005-04-15 (2894 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120327.1) MarkForUpload: True ProcCmdline: /usr/sbin/unity-greeter ProcEnviron: - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_US.UTF-8 - SHELL=/bin/false + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/false SegvAnalysis: - Segfault happened at: 0xb73398a0: mov (%edi),%eax - PC (0xb73398a0) ok - source "(%edi)" (0x00000000) not located in a known VMA region (needed readable region)! - destination "%eax" ok + Segfault happened at: 0xb73398a0: mov (%edi),%eax + PC (0xb73398a0) ok + source "(%edi)" (0x00000000) not located in a known VMA region (needed readable region)! + destination "%eax" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity-greeter StacktraceTop: - ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 - ?? () - ?? () - ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 - g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0 + ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 + ?? () + ?? () + ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 + g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0 Title: unity-greeter crashed with SIGSEGV in g_main_context_dispatch() UpgradeStatus: Upgraded to quantal on 2013-03-19 (0 days ago) UserGroups:
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1157400 Title: unity-greeter crashed with SIGSEGV in g_main_context_dispatch() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1157400/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
