I see this error also repeatedly since upgrading from 13.10 to 14.04. The system is unusable since then.
I tried to use different version of the nvidia proprietary drivers but not of them did run stable either. Currently I use updated drivers from oibaf ppa.
Kernel:
3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
I see this error also repeatedly since upgrading from 13.10 to 14.04. The system is unusable since then.
I tried to use different version of the nvidia proprietary drivers but not of them did run stable either. Currently I use updated drivers from oibaf ppa.
Kernel:
3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Graphics Device:
VGA compatible controller: NVIDIA Corporation C79 [GeForce 9400] (rev b1)
xserver- xorg-video- nouveau 1:1.0.10+ git1405091930. 8604a7~ gd~t nouveau2: amd64 2.4.54+ git1405131830. 305478~ gd~t git1405131830. 305478~ gd~t
libdrm-
libdrm2:amd64 2.4.54+
[ 4657.804009] nouveau E[Xorg[1120]] failed to idle channel 0xcccc0001 [Xorg[1120]] 0000:02: 00.0] unknown intr 0x06080000, ch 127
[ 4657.804035] nouveau E[ PFB][0000:02:00.0] trapped write at 0x010028e3a8 on channel 0x0001fee0 [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT
[ 4672.804008] nouveau E[Xorg[1120]] failed to idle channel 0xcccc0001 [Xorg[1120]]
[ 4672.804036] nouveau E[ PFB][0000:02:00.0] trapped write at 0x010028e398 on channel 0x0001fee0 [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT
[ 4672.804063] nouveau E[ PFB][0000:02:00.0] trapped write at 0x010028e3a0 on channel 0x0001fee0 [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT
[ 4672.804078] nouveau E[ PFB][0000:02:00.0] trapped write at 0x010028e390 on channel 0x0001fee0 [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT
[ 4672.804093] nouveau E[ PFB][0000:02:00.0] trapped write at 0x010028e388 on channel 0x0001fee0 [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT
[ 4672.804126] nouveau E[ PFB][0000:02:00.0] trapped write at 0x01003f9020 on channel 0x0001fee0 [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT
[ 4672.804151] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0100000000 on channel 0x0001fee0 [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT
[ 4676.506881] nouveau W[ PFIFO][
above line is repeated about 100 times, then:
May 16 22:12:33 comet kernel: [ 4676.507823] nouveau E[ PFIFO][ 0000:02: 00.0] still angry after 101 spins, halt