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[Alberto Salvia Novella <es20490446e@xxxxxxxxx>]

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

** Package changed: xorg (Ubuntu) => gnome-control-center (Ubuntu)

** Also affects: gnome-control-center
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1528319

Title:
  Scaling factors for HiDPI on multiple monitors

Status in gnome-control-center:
  New
Status in gnome-control-center package in Ubuntu:
  Confirmed

Bug description:
  Hello,

  a bug report for my problem was suggested here: https://answers.launchpad.net/ubuntu/+question/274062
  I also created a question at askubuntu: http://askubuntu.com/questions/614301/how-to-set-different-scaling-on-multiple-monitors

  I'm trying to use an external monitor on my HiDPI Dell XPS 13 9343. It
  has a resolution of 3200x1800. The monitor I'm trying to connect has a
  resolution of 2560x1440 (or 1920x1080). When using the notebook alone
  I need to use a scaling factor of 1,75 due to the high resolution. The
  problem occurs when changing the scaling factor for the external
  monitor, which is too high with 1,75.

  As the GUI settings describe, it is possible to set different scaling
  factors for different monitors. Unfortunately the settings always take
  effect on all monitors. For example:

  Scaling factor: 1
  Monitor 3200x1800: everything too small
  Monitor: 2560x1440: everything good

  Scaling factor 1,75: vice versa

  In the question on askubuntu (see above) you can see how the gsettings
  are changed when altering the scaling factor. It seems like it is not
  possible to set the value separately for each monitor.

  I would be grateful if you can check that. I hope all necessary
  information are included in the bug report. If not, please describe
  how I can help.

  Regards,
  lum3n

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
  Uname: Linux 4.2.0-18-generic x86_64
  NonfreeKernelModules: wl
  .tmp.unity.support.test.0:

  ApportVersion: 2.19.1-0ubuntu5
  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: Mon Dec 21 19:24:41 2015
  DistUpgraded: 2015-11-02 20:46:01,871 DEBUG enabling apt cron job
  DistroCodename: wily
  DistroVariant: ubuntu
  DkmsStatus:
   bcmwl, 6.30.223.248+bdcom, 3.19.0-31-generic, x86_64: installed
   bcmwl, 6.30.223.248+bdcom, 4.2.0-16-generic, x86_64: installedError! Could not locate dkms.conf file.
   File:  does not exist.

   bcmwl, 6.30.223.248+bdcom, 4.2.0-18-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:0665]
  InstallationDate: Installed on 2015-07-06 (168 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Dell Inc. XPS 13 9343
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-18-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev'
  UpgradeStatus: Upgraded to wily on 2015-11-02 (48 days ago)
  dmi.bios.date: 03/12/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A02
  dmi.board.name: 0310JH
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA02:bd03/12/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.64-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
  xserver.bootTime: Mon Dec 21 18:46:25 2015
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                5153
   vendor                                     SHP
  xserver.version: 2:1.17.2-1ubuntu9

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