Created attachment 120994 Added a more a dmesg debug log for the problem. The freeze occurs after this error: [ 409.260043] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ CTXSW_TIMEOUT ]
As it can be seen imediately after the freeze, this error is spammed on dmesg every 5 seconds. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1243557 Title: 10de:1056 [Dell Latitude E6520] [NVS 4200M] X freeze, "unhandled status 0x00800000" To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1243557/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
