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[Bug 1349121] [NEW] Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Morten Frisch <1349121@xxxxxxxxxxxxxxxxxx>
Date: Sun, 27 Jul 2014 14:42:13 -0000
Reply-to: Bug 1349121 <1349121@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

Samsung NP300V3A (Laptop) | Nvidia GF119M [GeForce GT 520M] | Ubuntu
14.04.01 LTS

Xorg 1:7.7+1ubuntu8 | ubuntu-drivers-common 1:0.2.91.5 | xserver-xorg-
video-nouveau 1:1.0.10-1ubuntu2

Unexpected 'ghost' display appears in settings when no extra display is
connected.

There is a non-existing display detected, known as "Unknown Display".
The bug is all in all very similar, if not a duplicate, of bug #1296020.
However, as I am using Nouveau rather than Nvidia-331 and have different
hardware, I thought it better to make a new report. The bug renders GDM
impossible to use while Lightdm works. When logging in to Gnome Shell,
the screen goes black from time to time (upon loading the shell), this I
can solve by using the laptop hardware keys for switching video output.

I tried the proprietary drivers and the fix committed to trusty-proposed
due to bug #1296020 (ubuntu-drivers-common 1:0.2.91.6) with no avail. It
seems that whatever solved the issue for a non-existing display for
Nvidia-331 users is not causing the problem for those who are using
Nouveau.

My 'xrandr -q' output
Screen 0: minimum 320 x 200, current 2390 x 768, maximum 32767 x 32767
LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x 165mm
   1366x768       60.0*+
   1360x768       59.8     60.0
   1024x768       60.0
   800x600        60.3     56.2
   640x480        59.9
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
VGA-1-2 connected 1024x768+1366+0 0mm x 0mm
   1024x768       60.0*
   800x600        60.3     56.2
   848x480        60.0
   640x480        59.9
  1024x768 (0x43)   65.0MHz
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
        v: height  768 start  771 end  777 total  806           clock   60.0Hz
  800x600 (0x44)   40.0MHz
        h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
        v: height  600 start  601 end  605 total  628           clock   60.3Hz
  800x600 (0x45)   36.0MHz
        h: width   800 start  824 end  896 total 1024 skew    0 clock   35.2KHz
        v: height  600 start  601 end  603 total  625           clock   56.2Hz

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: GNOME
Date: Sun Jul 27 16:07:03 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus: bbswitch, 0.7, 3.13.0-32-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Samsung Electronics Co Ltd Device [144d:c0b6]
   Subsystem: Samsung Electronics Co Ltd Device [144d:c0b6]
InstallationDate: Installed on 2014-07-26 (1 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
Lsusb:
 Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 003: ID 2232:1008
 Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: SAMSUNG ELECTRONICS CO., LTD. 300V3A/300V4A/300V5A/200A4B/200A5B
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=/dev/mapper/ubuntu--vg-root ro video=VGA-0:d quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/02/2011
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 04FI
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 300V3A/300V4A/300V5A/200A4B/200A5B
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04FI:bd09/02/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn300V3A/300V4A/300V5A/200A4B/200A5B:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn300V3A/300V4A/300V5A/200A4B/200A5B:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 300V3A/300V4A/300V5A/200A4B/200A5B
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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
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
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sun Jul 27 16:05:09 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)
 NOUVEAU(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id                               13141
 vendor                                     SEC
xserver.version: 2:1.15.1-0ubuntu2

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty ubuntu

** Attachment added: "gpu-manager.log"
   https://bugs.launchpad.net/bugs/1349121/+attachment/4163795/+files/gpu-manager.log

** Description changed:

- Samsung NP300V3A (Laptop) | Nvidia GF119M [GeForce GT 520M] Ubuntu
+ Samsung NP300V3A (Laptop) | Nvidia GF119M [GeForce GT 520M] | Ubuntu
  14.04.01 LTS
  
  Xorg 1:7.7+1ubuntu8 | ubuntu-drivers-common 1:0.2.91.5 | xserver-xorg-
  video-nouveau 1:1.0.10-1ubuntu2
  
  Unexpected 'ghost' display appears in settings when no extra display is
  connected.
  
  There is a non-existing display detected, known as "Unknown Display".
  The bug is all in all very similar, if not a duplicate, of bug #1296020.
  However, as I am using Nouveau rather than Nvidia-331 and have different
  hardware, I thought it better to make a new report. The bug renders GDM
  impossible to use while Lightdm works. When logging in to Gnome Shell,
  the screen goes black from time to time (upon loading the shell), this I
  can solve by using the laptop hardware keys for switching video output.
  
  I tried the proprietary drivers and the fix committed to trusty-proposed
  due to bug #1296020 (ubuntu-drivers-common 1:0.2.91.6) with no avail. It
  seems that whatever solved the issue for a non-existing display for
  Nvidia-331 users is not causing the problem for those who are using
  Nouveau.
  
  My 'xrandr -q' output
  Screen 0: minimum 320 x 200, current 2390 x 768, maximum 32767 x 32767
  LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x 165mm
-    1366x768       60.0*+
-    1360x768       59.8     60.0  
-    1024x768       60.0  
-    800x600        60.3     56.2  
-    640x480        59.9  
+    1366x768       60.0*+
+    1360x768       59.8     60.0
+    1024x768       60.0
+    800x600        60.3     56.2
+    640x480        59.9
  VGA1 disconnected (normal left inverted right x axis y axis)
  HDMI1 disconnected (normal left inverted right x axis y axis)
  DP1 disconnected (normal left inverted right x axis y axis)
  VIRTUAL1 disconnected (normal left inverted right x axis y axis)
  VGA-1-2 connected 1024x768+1366+0 0mm x 0mm
-    1024x768       60.0* 
-    800x600        60.3     56.2  
-    848x480        60.0  
-    640x480        59.9  
-   1024x768 (0x43)   65.0MHz
-         h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
-         v: height  768 start  771 end  777 total  806           clock   60.0Hz
-   800x600 (0x44)   40.0MHz
-         h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
-         v: height  600 start  601 end  605 total  628           clock   60.3Hz
-   800x600 (0x45)   36.0MHz
-         h: width   800 start  824 end  896 total 1024 skew    0 clock   35.2KHz
-         v: height  600 start  601 end  603 total  625           clock   56.2Hz
+    1024x768       60.0*
+    800x600        60.3     56.2
+    848x480        60.0
+    640x480        59.9
+   1024x768 (0x43)   65.0MHz
+         h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
+         v: height  768 start  771 end  777 total  806           clock   60.0Hz
+   800x600 (0x44)   40.0MHz
+         h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
+         v: height  600 start  601 end  605 total  628           clock   60.3Hz
+   800x600 (0x45)   36.0MHz
+         h: width   800 start  824 end  896 total 1024 skew    0 clock   35.2KHz
+         v: height  600 start  601 end  603 total  625           clock   56.2Hz
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  .tmp.unity.support.test.0:
-  
+ 
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME
  Date: Sun Jul 27 16:07:03 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus: bbswitch, 0.7, 3.13.0-32-generic, x86_64: installed
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
-  Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
-    Subsystem: Samsung Electronics Co Ltd Device [144d:c0b6]
-    Subsystem: Samsung Electronics Co Ltd Device [144d:c0b6]
+  Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
+    Subsystem: Samsung Electronics Co Ltd Device [144d:c0b6]
+    Subsystem: Samsung Electronics Co Ltd Device [144d:c0b6]
  InstallationDate: Installed on 2014-07-26 (1 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  Lsusb:
-  Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
-  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-  Bus 001 Device 003: ID 2232:1008  
-  Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
+  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 001 Device 003: ID 2232:1008
+  Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 300V3A/300V4A/300V5A/200A4B/200A5B
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=/dev/mapper/ubuntu--vg-root ro video=VGA-0:d quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/02/2011
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 04FI
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 300V3A/300V4A/300V5A/200A4B/200A5B
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04FI:bd09/02/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn300V3A/300V4A/300V5A/200A4B/200A5B:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn300V3A/300V4A/300V5A/200A4B/200A5B:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 300V3A/300V4A/300V5A/200A4B/200A5B
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  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
  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
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Sun Jul 27 16:05:09 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)
-  NOUVEAU(G0): [XvMC] Failed to initialize extension.
+  Failed to load module "nvidia" (module does not exist, 0)
+  Failed to load module "nvidia" (module does not exist, 0)
+  NOUVEAU(G0): [XvMC] Failed to initialize extension.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
-  product id                               13141 
-  vendor                                     SEC
+  product id                               13141
+  vendor                                     SEC
  xserver.version: 2:1.15.1-0ubuntu2

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1349121

Title:
  Non-existent display detected using nouveau driver (Samsung Laptop
  Nvidia GeForce GT 520M) (Ubuntu 14.04.01)

Status in “xorg” package in Ubuntu:
  New

Bug description:
  Samsung NP300V3A (Laptop) | Nvidia GF119M [GeForce GT 520M] | Ubuntu
  14.04.01 LTS

  Xorg 1:7.7+1ubuntu8 | ubuntu-drivers-common 1:0.2.91.5 | xserver-xorg-
  video-nouveau 1:1.0.10-1ubuntu2

  Unexpected 'ghost' display appears in settings when no extra display
  is connected.

  There is a non-existing display detected, known as "Unknown Display".
  The bug is all in all very similar, if not a duplicate, of bug
  #1296020. However, as I am using Nouveau rather than Nvidia-331 and
  have different hardware, I thought it better to make a new report. The
  bug renders GDM impossible to use while Lightdm works. When logging in
  to Gnome Shell, the screen goes black from time to time (upon loading
  the shell), this I can solve by using the laptop hardware keys for
  switching video output.

  I tried the proprietary drivers and the fix committed to trusty-
  proposed due to bug #1296020 (ubuntu-drivers-common 1:0.2.91.6) with
  no avail. It seems that whatever solved the issue for a non-existing
  display for Nvidia-331 users is not causing the problem for those who
  are using Nouveau.

  My 'xrandr -q' output
  Screen 0: minimum 320 x 200, current 2390 x 768, maximum 32767 x 32767
  LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x 165mm
     1366x768       60.0*+
     1360x768       59.8     60.0
     1024x768       60.0
     800x600        60.3     56.2
     640x480        59.9
  VGA1 disconnected (normal left inverted right x axis y axis)
  HDMI1 disconnected (normal left inverted right x axis y axis)
  DP1 disconnected (normal left inverted right x axis y axis)
  VIRTUAL1 disconnected (normal left inverted right x axis y axis)
  VGA-1-2 connected 1024x768+1366+0 0mm x 0mm
     1024x768       60.0*
     800x600        60.3     56.2
     848x480        60.0
     640x480        59.9
    1024x768 (0x43)   65.0MHz
          h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
          v: height  768 start  771 end  777 total  806           clock   60.0Hz
    800x600 (0x44)   40.0MHz
          h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
          v: height  600 start  601 end  605 total  628           clock   60.3Hz
    800x600 (0x45)   36.0MHz
          h: width   800 start  824 end  896 total 1024 skew    0 clock   35.2KHz
          v: height  600 start  601 end  603 total  625           clock   56.2Hz

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME
  Date: Sun Jul 27 16:07:03 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus: bbswitch, 0.7, 3.13.0-32-generic, x86_64: installed
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Samsung Electronics Co Ltd Device [144d:c0b6]
     Subsystem: Samsung Electronics Co Ltd Device [144d:c0b6]
  InstallationDate: Installed on 2014-07-26 (1 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  Lsusb:
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 003: ID 2232:1008
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 300V3A/300V4A/300V5A/200A4B/200A5B
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=/dev/mapper/ubuntu--vg-root ro video=VGA-0:d quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/02/2011
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 04FI
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 300V3A/300V4A/300V5A/200A4B/200A5B
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04FI:bd09/02/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn300V3A/300V4A/300V5A/200A4B/200A5B:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn300V3A/300V4A/300V5A/200A4B/200A5B:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 300V3A/300V4A/300V5A/200A4B/200A5B
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  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
  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
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Sun Jul 27 16:05:09 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)
   NOUVEAU(G0): [XvMC] Failed to initialize extension.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               13141
   vendor                                     SEC
  xserver.version: 2:1.15.1-0ubuntu2

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Follow ups

[Bug 1349121] Re: Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Launchpad Bug Tracker, 2015-04-26
[Bug 1349121] Re: Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Christopher M. Penalver, 2015-02-24
[Bug 1349121] Re: Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Morten Frisch, 2014-07-31
[Bug 1349121] Re: Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Morten Frisch, 2014-07-31
[Bug 1349121] Re: Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Lévai Marcell, 2014-07-31
[Bug 1349121] Re: Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Morten Frisch, 2014-07-30
[Bug 1349121] Re: Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Lévai Marcell, 2014-07-30
[Bug 1349121] Re: Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Launchpad Bug Tracker, 2014-07-30
[Bug 1349121] Re: Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Morten Frisch, 2014-07-27
[Bug 1349121] [NEW] Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Morten Frisch, 2014-07-27
References

[Bug 1349121] [NEW] Non-existent display detected using nouveau driver (Samsung Laptop Nvidia GeForce GT 520M) (Ubuntu 14.04.01)
From: Morten Frisch, 2014-07-27