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[Bug 1510021] Re: After upgrade from vivid to wily external monitor has only limited resolutions


Gareth Woolridge, thank you for reporting this and helping make Ubuntu

Could you please run the following command from a terminal as it will automatically gather and attach updated debug information to this report:
apport-collect -p xorg 1510021

Please ensure you have the package xdiagnose installed, and that you
click the Yes button for attaching additional debugging information.

When reporting xorg related bugs in the future, please do so via the
above method. You can learn more about this functionality at

** Changed in: xorg (Ubuntu)
   Importance: Undecided => Low

** Changed in: xorg (Ubuntu)
       Status: New => Incomplete

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  After upgrade from vivid to wily external monitor has only limited

Status in xorg package in Ubuntu:

Bug description:
  In Vivid on connection of external display using displayport to VGA
  adaptor all resolutions upto max of my monitor were supported.

  Since upgrade to Wily while my internal display operates correctly the
  external display only shows resolutions up to 1024x768 as available,

  Screen 0: minimum 8 x 8, current 1366 x 768, maximum 32767 x 32767
  eDP1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 256mm x 144mm
     1366x768      60.00*+
     1360x768      59.80    59.96  
     1280x720      60.00  
     1024x768      60.00  
     1024x576      60.00  
     960x540       60.00  
     800x600       60.32    56.25  
     864x486       60.00  
     640x480       59.94  
     720x405       60.00  
     680x384       60.00  
     640x360       60.00  
  DP1 connected (normal left inverted right x axis y axis)
     1024x768      60.00  
     800x600       60.32    56.25  
     848x480       60.00  
     640x480       59.94

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
  CurrentDesktop: MATE
  Date: Mon Oct 26 10:00:40 2015
  InstallationDate: Installed on 2015-07-29 (88 days ago)
  InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to wily on 2015-10-22 (3 days ago)

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