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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Jeroen T. Vermeulen, could you please advise what packages were upgraded
precisely on 2014-04-01 that correlates to this issue?

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https://bugs.launchpad.net/bugs/1300557

Title:
  Screen resolution no longer works

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  My display's native resolution is 2560×1440 pixels.  Prior to, I
  think, Saucy I could only reach this resolution by adding it using
  xrandr, and then calling xrandr on boot/login to select that
  resolution.  The Display preferences did not show any higher options
  than 1920×1200.

  In Saucy, the native resolution just worked, and I could stop using
  xrandr.  It also worked in Trusty in the alpha releases, up to (and I
  think including) beta-1.  But today (this is not an April's fool, is
  it?) I rebooted after an upgrade, and found myself back in 1920×1200.
  Again, the Display preferences list that resolution as the highest
  possible.  But this time, attempts to ‘xrandr --addmode’ my native
  resolution failed.

  The error message wasn't very helpful; I'll try to reproduce it later
  but it throws my display into yet a lower resolution that's hard to
  work with.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7
  Uname: Linux 3.13.0-20-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.14-0ubuntu1
  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: Tue Apr  1 09:59:00 2014
  DistUpgraded: 2014-01-22 17:01:10,909 DEBUG enabling apt cron job
  DistroCodename: trusty
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
     Subsystem: Gigabyte Technology Co., Ltd Device [1458:d000]
  InstallationDate: Installed on 2013-08-03 (240 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Gigabyte Technology Co., Ltd. Z87-D3HP
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-20-generic root=UUID=12085c8d-328f-4c75-a04c-184c592f61ee ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to trusty on 2014-01-22 (68 days ago)
  dmi.bios.date: 05/16/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F4
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: Z87-D3HP-CF
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF4:bd05/16/2013:svnGigabyteTechnologyCo.,Ltd.:pnZ87-D3HP:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ87-D3HP-CF:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: Z87-D3HP
  dmi.product.version: To be filled by O.E.M.
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.
  version.compiz: compiz 1:0.9.11+14.04.20140328-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7
  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
  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 Apr  1 09:52:36 2014
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               16510
   vendor                                     DEL
  xserver.version: 2:1.15.0-1ubuntu7

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