Public bug reported:

I'm not saying xorg is the culprit, I think problem is graphics related thus it 
happens when I choose Nouveau graphics driver instead of proprietary Nvidia.
My GPU is an integrated one and uses shared RAM, this bug is more frequent when 
hardware settings are "AUTODETECT FRAME BUFFER SIZE=enabled" otherwise when 
it's set to "FIXED=256MB" it isn't that frequent.
The steps to reproduce this bug are not pretty clear, this crash happens at 
least once a day, appearently when there's too much memory in use.
I used to use "Nvidia proprietary driver" with Ubuntu 14.10 with less problems 
but some crashes correctly managed by system without closing any application 
but with Ubuntu 15.04 this crashes make all applications get closed, that's why 
I decided to change to Nouveau but it gets so slow. I'm really considering 
rollback to Ubuntu 14.10 which caused less problems.
When Systems freezes both keyboard and mouse get irresponsive too. I've 
collected some data through SSH which are attached:
 "Xorg.0.freezetime.log" is "/var/log/Xorg.0.log" at Freeze moment.
 "kikedmesg.txt" is "dmsg.txt" at Freeze moment.
Please contact me with directions to help in solving this issue.
Some Info:
1)Ubuntu 15.04 64 bits
2)xserver-xorg-video-nouveau version 1:1.0.11-1ubuntu2build1

Regards.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Uname: Linux 3.19.0-16-generic x86_64
.tmp.unity.support.test.1:

ApportVersion: 2.17.2-0ubuntu1
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
CurrentDesktop: Unity
Date: Sun May 17 20:08:57 2015
DistUpgraded: Fresh install
DistroCodename: vivid
DistroVariant: ubuntu
ExtraDebuggingInterest: No
GraphicsCard:
 NVIDIA Corporation C68 [GeForce 7050 PV / nForce 630a] [10de:053b] (rev a2) 
(prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:82b3]
InstallationDate: Installed on 2015-05-02 (15 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic 
root=UUID=73fab811-79d9-488b-9316-7e0df86fbc90 ro recovery nomodeset
Renderer: Software
SourcePackage: xserver-xorg-video-nouveau
UdevLog: Error: [Errno 2] No existe el archivo o el directorio: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/05/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0709
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M2N-VM HDMI
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev x.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0709:bd12/05/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2N-VMHDMI:rvrRevx.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917-1~exp1ubuntu2.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.11-1ubuntu2build1
xserver.bootTime: Sun May 17 19:17:29 2015
xserver.configfile: default
xserver.devices:
 input        Power Button         KEYBOARD, id 6
 input        Power Button         KEYBOARD, id 7
 input        AT Translated Set 2 keyboard KEYBOARD, id 8
 input        ImPS/2 Generic Wheel Mouse MOUSE, id 9
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.17.1-0ubuntu3

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


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

** Attachment added: ""/var/log/Xorg.0.log" at Freeze moment"
   
https://bugs.launchpad.net/bugs/1456016/+attachment/4399232/+files/Xorg.0.freezetime.log

** Description changed:

  I'm not saying xorg is the culprit, I think problem is graphics related thus 
it happens when I choose Nouveau graphics driver instead of proprietary Nvidia.
  My GPU is an integrated one and uses shared RAM, this bug is more frequent 
when hardware settings are "AUTODETECT FRAME BUFFER SIZE=enabled" otherwise 
when it's set to "FIXED=256MB" it isn't that frequent.
  The steps to reproduce this bug are not pretty clear, this crash happens at 
least once a day, appearently when there's too much memory in use.
  I used to use "Nvidia proprietary driver" with Ubuntu 14.10 with less 
problems but some crashes correctly managed by system without closing any 
application but with Ubuntu 15.04 this crashes make all applications get 
closed, that's why I decided to change to Nouveau but it gets so slow. I'm 
really considering rollback to Ubuntu 14.10 which caused less problems.
  When Systems freezes both keyboard and mouse get irresponsive too. I've 
collected some data through SSH which are attached:
-  "Xorg.0.freezetime.log" is "/var/log/Xorg.0.log" at Freeze moment.
-  "kikedmesg.txt" is "dmsg.txt" at Freeze moment.
+  "Xorg.0.freezetime.log" is "/var/log/Xorg.0.log" at Freeze moment.
+  "kikedmesg.txt" is "dmsg.txt" at Freeze moment.
  Please contact me with directions to help in solving this issue.
+ Some Info:
+ 1)Ubuntu 15.04 64 bits
+ 2)xserver-xorg-video-nouveau version 1:1.0.11-1ubuntu2build1
  
  Regards.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  Uname: Linux 3.19.0-16-generic x86_64
  .tmp.unity.support.test.1:
-  
+ 
  ApportVersion: 2.17.2-0ubuntu1
  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
  CurrentDesktop: Unity
  Date: Sun May 17 20:08:57 2015
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  ExtraDebuggingInterest: No
  GraphicsCard:
-  NVIDIA Corporation C68 [GeForce 7050 PV / nForce 630a] [10de:053b] (rev a2) 
(prog-if 00 [VGA controller])
-    Subsystem: ASUSTeK Computer Inc. Device [1043:82b3]
+  NVIDIA Corporation C68 [GeForce 7050 PV / nForce 630a] [10de:053b] (rev a2) 
(prog-if 00 [VGA controller])
+    Subsystem: ASUSTeK Computer Inc. Device [1043:82b3]
  InstallationDate: Installed on 2015-05-02 (15 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  Lsusb:
-  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic 
root=UUID=73fab811-79d9-488b-9316-7e0df86fbc90 ro recovery nomodeset
  Renderer: Software
  SourcePackage: xserver-xorg-video-nouveau
  UdevLog: Error: [Errno 2] No existe el archivo o el directorio: 
'/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/05/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0709
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M2N-VM HDMI
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev x.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0709:bd12/05/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2N-VMHDMI:rvrRevx.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917-1~exp1ubuntu2.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.11-1ubuntu2build1
  xserver.bootTime: Sun May 17 19:17:29 2015
  xserver.configfile: default
  xserver.devices:
-  input        Power Button         KEYBOARD, id 6
-  input        Power Button         KEYBOARD, id 7
-  input        AT Translated Set 2 keyboard KEYBOARD, id 8
-  input        ImPS/2 Generic Wheel Mouse MOUSE, id 9
+  input        Power Button         KEYBOARD, id 6
+  input        Power Button         KEYBOARD, id 7
+  input        AT Translated Set 2 keyboard KEYBOARD, id 8
+  input        ImPS/2 Generic Wheel Mouse MOUSE, id 9
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
-  
+ 
  xserver.version: 2:1.17.1-0ubuntu3

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu.
https://bugs.launchpad.net/bugs/1456016

Title:
  Xorg nouveau graphics driver freezes or crashes

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

Bug description:
  I'm not saying xorg is the culprit, I think problem is graphics related thus 
it happens when I choose Nouveau graphics driver instead of proprietary Nvidia.
  My GPU is an integrated one and uses shared RAM, this bug is more frequent 
when hardware settings are "AUTODETECT FRAME BUFFER SIZE=enabled" otherwise 
when it's set to "FIXED=256MB" it isn't that frequent.
  The steps to reproduce this bug are not pretty clear, this crash happens at 
least once a day, appearently when there's too much memory in use.
  I used to use "Nvidia proprietary driver" with Ubuntu 14.10 with less 
problems but some crashes correctly managed by system without closing any 
application but with Ubuntu 15.04 this crashes make all applications get 
closed, that's why I decided to change to Nouveau but it gets so slow. I'm 
really considering rollback to Ubuntu 14.10 which caused less problems.
  When Systems freezes both keyboard and mouse get irresponsive too. I've 
collected some data through SSH which are attached:
   "Xorg.0.freezetime.log" is "/var/log/Xorg.0.log" at Freeze moment.
   "kikedmesg.txt" is "dmsg.txt" at Freeze moment.
  Please contact me with directions to help in solving this issue.
  Some Info:
  1)Ubuntu 15.04 64 bits
  2)xserver-xorg-video-nouveau version 1:1.0.11-1ubuntu2build1

  Regards.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  Uname: Linux 3.19.0-16-generic x86_64
  .tmp.unity.support.test.1:

  ApportVersion: 2.17.2-0ubuntu1
  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
  CurrentDesktop: Unity
  Date: Sun May 17 20:08:57 2015
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  ExtraDebuggingInterest: No
  GraphicsCard:
   NVIDIA Corporation C68 [GeForce 7050 PV / nForce 630a] [10de:053b] (rev a2) 
(prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:82b3]
  InstallationDate: Installed on 2015-05-02 (15 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic 
root=UUID=73fab811-79d9-488b-9316-7e0df86fbc90 ro recovery nomodeset
  Renderer: Software
  SourcePackage: xserver-xorg-video-nouveau
  UdevLog: Error: [Errno 2] No existe el archivo o el directorio: 
'/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/05/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0709
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M2N-VM HDMI
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev x.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0709:bd12/05/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2N-VMHDMI:rvrRevx.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917-1~exp1ubuntu2.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.11-1ubuntu2build1
  xserver.bootTime: Sun May 17 19:17:29 2015
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Power Button         KEYBOARD, id 7
   input        AT Translated Set 2 keyboard KEYBOARD, id 8
   input        ImPS/2 Generic Wheel Mouse MOUSE, id 9
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:

  xserver.version: 2:1.17.1-0ubuntu3

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1456016/+subscriptions

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