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[Launchpad Bug Tracker <1453306@xxxxxxxxxxxxxxxxxx>]

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Running a freshly-installed 15.04, fully-updated, on an Intel NUC5i5RYK
(with an up-to-date bios). Connected to three Dell U2415 monitors,
daisy-chained using the DP output.

As you can see from Xorg.0.log, all three monitors are detected, and the
framebuffer is set to 5760 x 1200 (3 * 1920 x 1200).

This problem only manifests itself when connected to more than one
monitor.

---
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
DistUpgraded: Fresh install
DistroCodename: vivid
DistroRelease: Ubuntu 15.04
DistroVariant: ubuntu
DkmsStatus: virtualbox, 4.3.26, 3.19.0-16-generic, x86_64: installed
GraphicsCard:
 Intel Corporation Broadwell-U Integrated Graphics [8086:1626] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Intel Corporation Device [8086:2057]
InstallationDate: Installed on 2015-05-09 (2 days ago)
InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
Package: xorg 1:7.7+7ubuntu4
PackageArchitecture: amd64
ProcEnviron:
 LANGUAGE=
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic.efi.signed root=/dev/mapper/kubuntu--vg-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Tags:  vivid ubuntu
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
Uname: Linux 3.19.0-16-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

_MarkForUpload: True
dmi.bios.date: 04/15/2015
dmi.bios.vendor: Intel Corporation
dmi.bios.version: RYBDWi35.86A.0247.2015.0415.1351
dmi.board.name: NUC5i5RYB
dmi.board.vendor: Intel Corporation
dmi.board.version: H40999-502
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorporation:bvrRYBDWi35.86A.0247.2015.0415.1351:bd04/15/2015:svn:pn:pvr:rvnIntelCorporation:rnNUC5i5RYB:rvrH40999-502:cvn:ct3:cvr:
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
xserver.bootTime: Mon May 11 19:54:13 2015
xserver.configfile: default
xserver.errors:

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

xserver.version: 2:1.17.1-0ubuntu3

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: Incomplete


** Tags: amd64 apport-bug apport-collected freeze latest-bios-0247 trusty ubuntu vivid
-- 
Xorg freeze
https://bugs.launchpad.net/bugs/1453306
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