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[Bug 1373899] [NEW] Desktop does not work after suspend

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Sami Pietila <sampie@xxxxxx>
Date: Thu, 25 Sep 2014 12:06:10 -0000
Reply-to: Bug 1373899 <1373899@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

Hi,

Desktop crashes after suspend. Following messages are shown on dmesg:

[ 1605.156075] nouveau E[Xorg[1319]] failed to idle channel 0xcccc0000 [Xorg[1319]]
[ 1605.156283] nouveau E[     PFB][0000:01:00.0] trapped read at 0x002001e020 on channel 0x0001fb13 [unknown] SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT
[ 1605.169373] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e020 on channel 0x0001fb13 [unknown] PFIFO/PFIFO_READ/SEMAPHORE reason: PAGE_NOT_PRESENT
[ 1605.173958] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1605.174067] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1605.174175] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1605.174275] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1605.174435] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 1605.174685] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1605.174791] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1605.174897] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1605.174999] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1605.175150] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 1605.175393] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1605.175500] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1605.175605] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1605.175697] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1605.175887] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 1605.176172] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1605.176286] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1605.176394] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1605.176495] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1605.176653] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 1605.176897] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1605.177001] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1605.177108] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1605.177211] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1605.177361] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 1605.177607] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1605.177708] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1605.177814] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1605.177907] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1605.178091] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 1605.178336] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1605.178437] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1605.178543] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1605.178642] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1717.604024] nouveau E[Xorg[5367]] failed to idle channel 0xcccc0000 [Xorg[5367]]
[ 1717.604221] nouveau E[     PFB][0000:01:00.0] trapped read at 0x002001e020 on channel 0x0001fc23 [unknown] SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT
[ 1717.615926] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e020 on channel 0x0001fc23 [unknown] PFIFO/PFIFO_READ/SEMAPHORE reason: PAGE_NOT_PRESENT
[ 1717.770986] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1717.771103] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1717.771210] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1717.771305] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fc23000 Xorg[5367]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1717.771466] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fc23 [Xorg[5367]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 1717.771810] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1717.771918] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1717.772023] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1717.772115] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fc23000 Xorg[5367]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1717.775781] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fc23 [Xorg[5367]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 1717.783613] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1717.787576] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1717.787576] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1717.796980] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fc23000 Xorg[5367]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1904.664022] nouveau E[Xorg[6224]] failed to idle channel 0xcccc0000 [Xorg[6224]]
[ 1904.668427] nouveau E[     PFB][0000:01:00.0] trapped read at 0x002001e020 on channel 0x0001fb23 [unknown] SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT
[ 1904.686809] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e020 on channel 0x0001fb23 [unknown] PFIFO/PFIFO_READ/SEMAPHORE reason: PAGE_NOT_PRESENT
[ 1904.944078] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1904.948046] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1904.948046] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1904.948046] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[6224]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 1904.948046] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb23 [Xorg[6224]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 1904.967250] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 1904.971222] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 1904.971222] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 1904.976642] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[6224]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 2650.920022] nouveau E[Xorg[8496]] failed to idle channel 0xcccc0000 [Xorg[8496]]
[ 2650.921929] nouveau E[     PFB][0000:01:00.0] trapped read at 0x002001e020 on channel 0x0001fb23 [unknown] SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT
[ 2650.948695] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e020 on channel 0x0001fb23 [unknown] PFIFO/PFIFO_READ/SEMAPHORE reason: PAGE_NOT_PRESENT
[ 2651.128694] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 2651.130924] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 2651.132009] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 2651.132009] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[8496]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 2651.132009] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb23 [Xorg[8496]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
[ 2651.140739] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
[ 2651.143432] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
[ 2651.144698] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 2651.144698] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[8496]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
[ 2651.144698] nouveau E[     PFB][0000:01:00.0] trapped read at 0x0020416000 on channel 0x0001fb23 [Xorg[8496]] PGRAPH/DISPATCH/M2M_IN reason: NULL_DMAOBJ
[ 2651.155141] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF IN
[ 2651.158295] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00320151 20416000 00000000 04000000
[ 2651.159118] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
[ 2651.159118] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[8496]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
Uname: Linux 3.13.0-36-generic x86_64
NonfreeKernelModules: wl
.tmp.unity.support.test.0:
 
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Thu Sep 25 14:58:59 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 6.30.223.141+bdcom, 3.13.0-32-generic, x86_64: installed
 bcmwl, 6.30.223.141+bdcom, 3.13.0-36-generic, x86_64: installed
EcryptfsInUse: Yes
GraphicsCard:
 NVIDIA Corporation G84M [GeForce 8600M GT] [10de:0407] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Apple Inc. Device [106b:00a3]
InstallationDate: Installed on 2014-09-23 (2 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Apple Inc. MacBookPro4,1
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-36-generic root=UUID=da9ad261-7940-4e46-aaf0-671aa82739fb ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-nouveau
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/27/08
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP41.88Z.00C1.B03.0802271651
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F42C89C8
dmi.board.vendor: Apple Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 2
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F42C89C8
dmi.modalias: dmi:bvnAppleInc.:bvrMBP41.88Z.00C1.B03.0802271651:bd02/27/08:svnAppleInc.:pnMacBookPro4,1:pvr1.0:rvnAppleInc.:rnMac-F42C89C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F42C89C8:
dmi.product.name: MacBookPro4,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Thu Sep 25 14:56:57 2014
xserver.configfile: default
xserver.errors:
 Failed to load module "nvidia" (module does not exist, 0)
 Failed to load module "nvidia" (module does not exist, 0)
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.1-0ubuntu2.1
xserver.video_driver: nouveau

** Affects: xserver-xorg-video-nouveau (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 trusty ubuntu

-- 
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https://bugs.launchpad.net/bugs/1373899

Title:
  Desktop does not work after suspend

Status in “xserver-xorg-video-nouveau” package in Ubuntu:
  New

Bug description:
  Hi,

  Desktop crashes after suspend. Following messages are shown on dmesg:

  [ 1605.156075] nouveau E[Xorg[1319]] failed to idle channel 0xcccc0000 [Xorg[1319]]
  [ 1605.156283] nouveau E[     PFB][0000:01:00.0] trapped read at 0x002001e020 on channel 0x0001fb13 [unknown] SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT
  [ 1605.169373] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e020 on channel 0x0001fb13 [unknown] PFIFO/PFIFO_READ/SEMAPHORE reason: PAGE_NOT_PRESENT
  [ 1605.173958] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1605.174067] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1605.174175] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1605.174275] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1605.174435] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 1605.174685] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1605.174791] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1605.174897] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1605.174999] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1605.175150] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 1605.175393] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1605.175500] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1605.175605] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1605.175697] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1605.175887] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 1605.176172] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1605.176286] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1605.176394] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1605.176495] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1605.176653] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 1605.176897] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1605.177001] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1605.177108] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1605.177211] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1605.177361] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 1605.177607] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1605.177708] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1605.177814] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1605.177907] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1605.178091] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb13 [Xorg[1319]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 1605.178336] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1605.178437] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1605.178543] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1605.178642] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb13000 Xorg[1319]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1717.604024] nouveau E[Xorg[5367]] failed to idle channel 0xcccc0000 [Xorg[5367]]
  [ 1717.604221] nouveau E[     PFB][0000:01:00.0] trapped read at 0x002001e020 on channel 0x0001fc23 [unknown] SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT
  [ 1717.615926] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e020 on channel 0x0001fc23 [unknown] PFIFO/PFIFO_READ/SEMAPHORE reason: PAGE_NOT_PRESENT
  [ 1717.770986] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1717.771103] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1717.771210] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1717.771305] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fc23000 Xorg[5367]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1717.771466] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fc23 [Xorg[5367]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 1717.771810] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1717.771918] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1717.772023] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1717.772115] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fc23000 Xorg[5367]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1717.775781] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fc23 [Xorg[5367]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 1717.783613] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1717.787576] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1717.787576] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1717.796980] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fc23000 Xorg[5367]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1904.664022] nouveau E[Xorg[6224]] failed to idle channel 0xcccc0000 [Xorg[6224]]
  [ 1904.668427] nouveau E[     PFB][0000:01:00.0] trapped read at 0x002001e020 on channel 0x0001fb23 [unknown] SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT
  [ 1904.686809] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e020 on channel 0x0001fb23 [unknown] PFIFO/PFIFO_READ/SEMAPHORE reason: PAGE_NOT_PRESENT
  [ 1904.944078] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1904.948046] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1904.948046] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1904.948046] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[6224]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 1904.948046] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb23 [Xorg[6224]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 1904.967250] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 1904.971222] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 1904.971222] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 1904.976642] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[6224]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 2650.920022] nouveau E[Xorg[8496]] failed to idle channel 0xcccc0000 [Xorg[8496]]
  [ 2650.921929] nouveau E[     PFB][0000:01:00.0] trapped read at 0x002001e020 on channel 0x0001fb23 [unknown] SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT
  [ 2650.948695] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e020 on channel 0x0001fb23 [unknown] PFIFO/PFIFO_READ/SEMAPHORE reason: PAGE_NOT_PRESENT
  [ 2651.128694] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 2651.130924] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 2651.132009] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 2651.132009] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[8496]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 2651.132009] nouveau E[     PFB][0000:01:00.0] trapped write at 0x002001e010 on channel 0x0001fb23 [Xorg[8496]] PGRAPH/DISPATCH/M2M_NOTIFY reason: PAGE_NOT_PRESENT
  [ 2651.140739] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY
  [ 2651.143432] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432
  [ 2651.144698] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 2651.144698] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[8496]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000
  [ 2651.144698] nouveau E[     PFB][0000:01:00.0] trapped read at 0x0020416000 on channel 0x0001fb23 [Xorg[8496]] PGRAPH/DISPATCH/M2M_IN reason: NULL_DMAOBJ
  [ 2651.155141] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF IN
  [ 2651.158295] nouveau E[  PGRAPH][0000:01:00.0] TRAP_M2MF 00320151 20416000 00000000 04000000
  [ 2651.159118] nouveau E[  PGRAPH][0000:01:00.0]  TRAP
  [ 2651.159118] nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x001fb23000 Xorg[8496]] subc 0 class 0x5039 mthd 0x0328 data 0x00000000

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
  Uname: Linux 3.13.0-36-generic x86_64
  NonfreeKernelModules: wl
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.4
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  Date: Thu Sep 25 14:58:59 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus:
   bcmwl, 6.30.223.141+bdcom, 3.13.0-32-generic, x86_64: installed
   bcmwl, 6.30.223.141+bdcom, 3.13.0-36-generic, x86_64: installed
  EcryptfsInUse: Yes
  GraphicsCard:
   NVIDIA Corporation G84M [GeForce 8600M GT] [10de:0407] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Apple Inc. Device [106b:00a3]
  InstallationDate: Installed on 2014-09-23 (2 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Apple Inc. MacBookPro4,1
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-36-generic root=UUID=da9ad261-7940-4e46-aaf0-671aa82739fb ro quiet splash vt.handoff=7
  SourcePackage: xserver-xorg-video-nouveau
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/27/08
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP41.88Z.00C1.B03.0802271651
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Mac-F42C89C8
  dmi.board.vendor: Apple Inc.
  dmi.board.version: PVT
  dmi.chassis.asset.tag: Asset Tag#
  dmi.chassis.type: 2
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-F42C89C8
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP41.88Z.00C1.B03.0802271651:bd02/27/08:svnAppleInc.:pnMacBookPro4,1:pvr1.0:rvnAppleInc.:rnMac-F42C89C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F42C89C8:
  dmi.product.name: MacBookPro4,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.
  version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Thu Sep 25 14:56:57 2014
  xserver.configfile: default
  xserver.errors:
   Failed to load module "nvidia" (module does not exist, 0)
   Failed to load module "nvidia" (module does not exist, 0)
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.15.1-0ubuntu2.1
  xserver.video_driver: nouveau

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https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1373899/+subscriptions
Follow ups

[Bug 1373899] Re: Desktop does not work after suspend
From: Launchpad Bug Tracker, 2015-11-26
[Bug 1373899] Re: Desktop does not work after suspend
From: Christopher M. Penalver, 2015-09-27
[Bug 1373899] [NEW] Desktop does not work after suspend
From: Sami Pietila, 2014-09-25
References

[Bug 1373899] [NEW] Desktop does not work after suspend
From: Sami Pietila, 2014-09-25