You have been subscribed to a public bug: Every time I open that Ubuntu search thing computer starts to lag. Sometimes blurred backdrop disappears, sometimes other random controls turn green (that is, solid rectangle instead of graphics). Computer even completely froze once.
The video adapter is GeForce 8400 GS. Desktop resolution is 1920x1200. I've got an impression that this didn't occur with previous, much smaller screen (the PC is at work, and that monitor got replaced soon after I started to work there). So this might be caused by lack of resources or something. For instance, Workspace Switched doesn't cause anything, even though it's probably graphics intense, too (tossing 8 full HD images of desktops around, after all) If I do `tail -f /var/log/syslog', I notice that nouveau spits a lot of errors. Here is excerpt from the log (the full log is attached): Oct 17 12:08:34 fiva kernel: [ 3119.929471] nouveau E[ DRM] fail ttm_validate Oct 17 12:08:34 fiva kernel: [ 3119.929476] nouveau E[ DRM] validate vram_list Oct 17 12:08:34 fiva kernel: [ 3119.929518] nouveau E[ DRM] validate: -12 Oct 17 12:08:34 fiva kernel: [ 3120.062026] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TPDMA_RT - TP 0 - Unknown fault at address 004ed60000 Oct 17 12:08:34 fiva kernel: [ 3120.062032] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TPDMA_RT - TP 0 - e0c: 00000000, e18: 00000000, e1c: 00000000, e20: 00001100, e24: 00030000 Oct 17 12:08:34 fiva kernel: [ 3120.062036] nouveau E[ PGRAPH][0000:01:00.0] TRAP Oct 17 12:08:34 fiva kernel: [ 3120.062043] nouveau E[ PGRAPH][0000:01:00.0] ch 4 [0x000fc34000] subc 3 class 0x8297 mthd 0x1b0c data 0x1000f010 Oct 17 12:08:34 fiva kernel: [ 3120.062058] nouveau E[ PFB][0000:01:00.0] trapped write at 0x004ed60000 on channel 0x0000fc34 PGRAPH/PROP/RT0 reason: PAGE_NOT_PRESENT Oct 17 12:08:34 fiva kernel: [ 3120.062077] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TPDMA_RT - TP 0 - Unknown fault at address 004ed6e400 Oct 17 12:08:34 fiva kernel: [ 3120.062082] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TPDMA_RT - TP 0 - e0c: 00000000, e18: 00000000, e1c: 001000e0, e20: 00001100, e24: 00030000 Oct 17 12:08:34 fiva kernel: [ 3120.062085] nouveau E[ PGRAPH][0000:01:00.0] TRAP Oct 17 12:08:34 fiva kernel: [ 3120.062090] nouveau E[ PGRAPH][0000:01:00.0] ch 4 [0x000fc34000] subc 3 class 0x8297 mthd 0x1b0c data 0x1000f010 Oct 17 12:08:34 fiva kernel: [ 3120.062098] nouveau E[ PFB][0000:01:00.0] trapped write at 0x004ed77100 on channel 0x0000fc34 PGRAPH/PROP/RT0 reason: PAGE_NOT_PRESENT Oct 17 12:08:34 fiva kernel: [ 3120.062133] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TPDMA_RT - TP 0 - Unknown fault at address 004ed80500 Oct 17 12:08:34 fiva kernel: [ 3120.062137] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TPDMA_RT - TP 0 - e0c: 00000000, e18: 00000000, e1c: 00140200, e20: 00001100, e24: 00030000 Oct 17 12:08:34 fiva kernel: [ 3120.062140] nouveau E[ PGRAPH][0000:01:00.0] TRAP Oct 17 12:08:34 fiva kernel: [ 3120.062145] nouveau E[ PGRAPH][0000:01:00.0] ch 4 [0x000fc34000] subc 3 class 0x8297 mthd 0x1b0c data 0x1000f010 Oct 17 12:08:34 fiva kernel: [ 3120.062155] nouveau E[ PFB][0000:01:00.0] trapped write at 0x004ed85500 on channel 0x0000fc34 PGRAPH/PROP/RT0 reason: PAGE_NOT_PRESENT Oct 17 12:08:34 fiva kernel: [ 3120.080363] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TPDMA_RT - TP 0 - Unknown fault at address 004ed93700 Oct 17 12:08:34 fiva kernel: [ 3120.080367] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TPDMA_RT - TP 0 - e0c: 00000000, e18: 00000000, e1c: 001c0330, e20: 00001100, e24: 00030000 Oct 17 12:08:34 fiva kernel: [ 3120.080369] nouveau E[ PGRAPH][0000:01:00.0] TRAP Oct 17 12:08:34 fiva kernel: [ 3120.080374] nouveau E[ PGRAPH][0000:01:00.0] ch 4 [0x000fc34000] subc 3 class 0x8297 mthd 0x1b0c data 0x1000f010 Oct 17 12:08:34 fiva kernel: [ 3120.080385] nouveau E[ PFB][0000:01:00.0] trapped write at 0x004ed97400 on channel 0x0000fc34 PGRAPH/PROP/RT0 reason: PAGE_NOT_PRESENT Oct 17 12:08:35 fiva kernel: [ 3120.249080] nouveau E[ PGRAPH][0000:01:00.0] magic set 0: Oct 17 12:08:35 fiva kernel: [ 3120.249086] nouveau E[ PGRAPH][0000:01:00.0] 0x00408904: 0x20094c01 Oct 17 12:08:35 fiva kernel: [ 3120.249090] nouveau E[ PGRAPH][0000:01:00.0] 0x00408908: 0x08000400 Oct 17 12:08:35 fiva kernel: [ 3120.249093] nouveau E[ PGRAPH][0000:01:00.0] 0x0040890c: 0x40000432 Oct 17 12:08:35 fiva kernel: [ 3120.249096] nouveau E[ PGRAPH][0000:01:00.0] 0x00408910: 0x04000000 Oct 17 12:08:35 fiva kernel: [ 3120.249100] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TEXTURE - TP0: Unhandled ustatus 0x00000003 Oct 17 12:08:35 fiva kernel: [ 3120.249102] nouveau E[ PGRAPH][0000:01:00.0] TRAP Oct 17 12:08:35 fiva kernel: [ 3120.249109] nouveau E[ PGRAPH][0000:01:00.0] ch 4 [0x000fc34000] subc 3 class 0x8297 mthd 0x0f04 data 0x00000000 Oct 17 12:08:35 fiva kernel: [ 3120.249118] nouveau E[ PFB][0000:01:00.0] trapped read at 0x0800040000 on channel 0x0000fc34 PGRAPH/TEXTURE/00 reason: PT_NOT_PRESENT Oct 17 12:08:35 fiva kernel: [ 3120.412063] nouveau E[ PGRAPH][0000:01:00.0] magic set 0: Oct 17 12:08:35 fiva kernel: [ 3120.412069] nouveau E[ PGRAPH][0000:01:00.0] 0x00408904: 0x20091a01 Oct 17 12:08:35 fiva kernel: [ 3120.412073] nouveau E[ PGRAPH][0000:01:00.0] 0x00408908: 0x08000100 Oct 17 12:08:35 fiva kernel: [ 3120.412077] nouveau E[ PGRAPH][0000:01:00.0] 0x0040890c: 0x40000432 Oct 17 12:08:35 fiva kernel: [ 3120.412080] nouveau E[ PGRAPH][0000:01:00.0] 0x00408910: 0x01000000 Oct 17 12:08:35 fiva kernel: [ 3120.412083] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TEXTURE - TP0: Unhandled ustatus 0x00000003 Oct 17 12:08:35 fiva kernel: [ 3120.412086] nouveau E[ PGRAPH][0000:01:00.0] TRAP Oct 17 12:08:35 fiva kernel: [ 3120.412092] nouveau E[ PGRAPH][0000:01:00.0] ch 4 [0x000fc34000] subc 3 class 0x8297 mthd 0x0f04 data 0x00000000 Oct 17 12:08:35 fiva kernel: [ 3120.412108] nouveau E[ PFB][0000:01:00.0] trapped read at 0x0800010000 on channel 0x0000fc34 PGRAPH/TEXTURE/00 reason: PT_NOT_PRESENT Oct 17 12:08:35 fiva kernel: [ 3120.532794] nouveau E[ PGRAPH][0000:01:00.0] magic set 0: Oct 17 12:08:35 fiva kernel: [ 3120.532800] nouveau E[ PGRAPH][0000:01:00.0] 0x00408904: 0x20082401 Oct 17 12:08:35 fiva kernel: [ 3120.532803] nouveau E[ PGRAPH][0000:01:00.0] 0x00408908: 0x08000400 Oct 17 12:08:35 fiva kernel: [ 3120.532806] nouveau E[ PGRAPH][0000:01:00.0] 0x0040890c: 0x40000432 Oct 17 12:08:35 fiva kernel: [ 3120.532808] nouveau E[ PGRAPH][0000:01:00.0] 0x00408910: 0x04000000 Oct 17 12:08:35 fiva kernel: [ 3120.532811] nouveau E[ PGRAPH][0000:01:00.0] TRAP_TEXTURE - TP0: Unhandled ustatus 0x00000003 ** Affects: xserver-xorg-video-nouveau (Ubuntu) Importance: Undecided Status: Confirmed ** Affects: libdrm (Arch Linux) Importance: Undecided Status: New ** Tags: hang nouveau -- nouveau spits errors and hangs when ubuntu search window is openned https://bugs.launchpad.net/bugs/1240869 You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp