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[Bug 1403228] Re: unable to connect external monitor

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Arlen <arlenwasp@xxxxxxxxx>
Date: Tue, 16 Dec 2014 22:45:47 -0000
Reply-to: Bug 1403228 <1403228@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Description changed:

  When connecting a BenQ T905 through HDMI with a resolution of around
  1280x1020, the mouse starts wobling back and forth 4-5 times a second.
  Checking the log, it seems like the system cant decide on a correct
  resolution and changing it back and forth between different resolutions
  4-5 times a second.
  
- There exists similar bugs for Ubuntu 14.04 based distros (Linux Mint
- 17), and reading there it seems its a problem with something not
- supporting lower than average external monitor resolutions. My main
- screen is 1366x768.
+ There exists similar bugs for Ubuntu 14.04 based distros (Linux Mint 17),
+ https://bugs.launchpad.net/ubuntu/+bug/1332895 
+ and reading there it seems its a problem with something not supporting lower than average external monitor resolutions. My main screen is 1366x768.
  
  And if you scroll to the bottom of XorgLog.txt, it's actually changing
  the refresh rate of the external monitor between 60 and 76 4-5 times a
  second.
  
  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
  CasperVersion: 1.340
  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: Tue Dec 16 22:16:10 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Samsung Electronics Co Ltd Device [144d:c0d7]
  LiveMediaBuild: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C/532U3C
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash --
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/25/2013
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P12ABH
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: NP540U3C-A03SE
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP12ABH:bd10/25/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C/532U3C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP540U3C-A03SE:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 530U3C/530U4C/532U3C
  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: Tue Dec 16 22:13:01 2014
  xserver.configfile: default
  xserver.errors:
  
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
  
  xserver.version: 2:1.15.1-0ubuntu2

-- 
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https://bugs.launchpad.net/bugs/1403228

Title:
  unable to connect external monitor

Status in xorg package in Ubuntu:
  New

Bug description:
  When connecting a BenQ T905 through HDMI with a resolution of around
  1280x1020, the mouse starts wobling back and forth 4-5 times a second.
  Checking the log, it seems like the system cant decide on a correct
  resolution and changing it back and forth between different
  resolutions 4-5 times a second.

  There exists similar bugs for Ubuntu 14.04 based distros (Linux Mint 17),
  https://bugs.launchpad.net/ubuntu/+bug/1332895 
  and reading there it seems its a problem with something not supporting lower than average external monitor resolutions. My main screen is 1366x768.

  And if you scroll to the bottom of XorgLog.txt, it's actually changing
  the refresh rate of the external monitor between 60 and 76 4-5 times a
  second.

  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
  CasperVersion: 1.340
  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: Tue Dec 16 22:16:10 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Samsung Electronics Co Ltd Device [144d:c0d7]
  LiveMediaBuild: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C/532U3C
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash --
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/25/2013
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P12ABH
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: NP540U3C-A03SE
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP12ABH:bd10/25/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C/532U3C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP540U3C-A03SE:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 530U3C/530U4C/532U3C
  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: Tue Dec 16 22:13:01 2014
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:

  xserver.version: 2:1.15.1-0ubuntu2

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References

[Bug 1403228] [NEW] unable to connect external monitor
From: Arlen, 2014-12-16