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Message #151985
[Bug 1494095] Re: Dell U3414W screen not turning on in 3440 x 1440 mode
this is a kernel bug
try newer mainline builds:
http://kernel.ubuntu.com/~kernel-ppa/mainline/
** Package changed: xserver-xorg-video-intel (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Medium => Low
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https://bugs.launchpad.net/bugs/1494095
Title:
Dell U3414W screen not turning on in 3440 x 1440 mode
Status in linux package in Ubuntu:
Incomplete
Bug description:
Following on from https://answers.launchpad.net/ubuntu/+source
/xserver-xorg-video-intel/+question/270926
When I plug a Dell U3414W screen into my Dell XPS 13 9343 display port
the screen does not turn on when I enable it's native 3440 x 1440 in
the display settings.
Lower resolutions correctly work such as:
2560 x 1080
1560 x 1440
I also found these messages in the dmesg log:
[ 308.637781] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
WORKAROUND: In Settings menu under Display disable "DP 1.2".
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2
ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4
Uname: Linux 3.19.0-26-generic x86_64
NonfreeKernelModules: wl
.tmp.unity.support.test.0:
ApportVersion: 2.17.2-0ubuntu1.3
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: Thu Sep 10 11:56:31 2015
DistUpgraded: Fresh install
DistroCodename: vivid
DistroVariant: ubuntu
DkmsStatus:
bcmwl, 6.30.223.248+bdcom, 3.19.0-22-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.19.0-23-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.19.0-25-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.19.0-26-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.19.0-28-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 2015-06-20 (82 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: Dell Inc. XPS 13 9343
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-26-generic.efi.signed root=UUID=b9c575ed-3fa1-4890-b4f2-b57441e8337d ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-intel
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/14/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
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.:bvrA05:bd07/14/2015:svnDellInc.:pnXPS139343:pvr:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: XPS 13 9343
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.9-2ubuntu1~vivid2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.9-2ubuntu1~vivid2
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~exp1ubuntu2.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
xserver.bootTime: Wed Sep 9 13:12:40 2015
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 41126
vendor DEL
xserver.version: 2:1.17.1-0ubuntu3
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