** Description changed: 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 + 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] + 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 + product id 41126 + vendor DEL xserver.version: 2:1.17.1-0ubuntu3
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1494095 Title: Dell U3414W screen not turning on in 3440 x 1440 mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1494095/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
