I have this problem too. With: Ubuntu 11.10 64-bit 3.0.0-16-generic #28-Ubuntu SMP Fri Jan 27 17:44:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux nvidia blob 295.20 (replicated problem with many earlier versions too) Intel DH55TC MB nVidia reference GTS 450 Video Card Creative Audigy2 ZS PCI
Nouveau is stable. Here is a kern.log listings from when it's happened and I actually let it run for awhile, thinking it might 'unlock' eventually: kernel: [21759.121525] hrtimer: interrupt took 144362867 ns kernel: [21759.121527] NVRM: GPU at 0000:01:00.0 has fallen off the bus. kernel: [21759.313534] NVRM: GPU at 0000:01:00.0 has fallen off the bus. kernel: [21831.211961] INFO: rcu_sched_state detected stall on CPU 1 (t=15000 jiffies) kernel: [22010.881594] INFO: rcu_sched_state detected stall on CPU 1 (t=60030 jiffies) kernel: [22190.551228] INFO: rcu_sched_state detected stall on CPU 1 (t=105060 jiffies) kernel: [22370.220861] INFO: rcu_sched_state detected stall on CPU 1 (t=150090 jiffies) ... (cut out some more 'stall on CPU 1' entries) kernel: [38001.478962] INFO: rcu_sched_state detected stall on CPU 1 (t=4067700 jiffies) kernel: [38181.148595] INFO: rcu_sched_state detected stall on CPU 1 (t=4112730 jiffies) kernel: [38360.818229] INFO: rcu_sched_state detected stall on CPU 1 (t=4157760 jiffies) Other times it's happened, I have not received the hrtimer message before hand, and I haven't waited long enough to get the stall on CPU 1 messages. I've just now set the 'Persistent mode' as discussed in entry #70 on this bug ticket. I'll see if that helps. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/733374 Title: X freeze, nvidia-current, Ubuntu 11.04 Maverick GeForce 9600GT To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/733374/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
