Public bug reported: Whenever I plug a DP monitor the system recognizes the screen (proper resolution and all) but the display stays blank (no image at all). In dmesg i get a "[drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting". If I start the system with the monitor plugged in, then it works, but it usually fails after a sleep or screen saver blank screen. And of course it does not work if I unplug it and the plug it again.
ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: xorg 1:7.6+7ubuntu7 ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9 Uname: Linux 3.0.0-14-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 1.23-0ubuntu4 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Mon Dec 19 19:32:22 2011 DistUpgraded: Log time: 2011-10-23 17:53:15.971687 DistroCodename: oneiric DistroVariant: ubuntu DkmsStatus: virtualbox, 4.1.2, 2.6.38-12-generic, x86_64: installed virtualbox, 4.1.2, 3.0.0-12-generic, x86_64: installed virtualbox, 4.1.2, 3.0.0-13-generic, x86_64: installed virtualbox, 4.1.2, 3.0.0-14-generic, x86_64: installed ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:046e] nVidia Corporation Device [10de:0df1] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:046e] InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1) MachineType: Dell Inc. XPS L501X ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-14-generic root=UUID=7ed02f07-bacb-492f-a8ef-b4dd0d3f9c84 ro quiet splash acpi_backlight=vendor vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to oneiric on 2011-10-23 (56 days ago) dmi.bios.date: 07/26/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A08 dmi.board.vendor: Dell Inc. dmi.board.version: A08 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A08 dmi.modalias: dmi:bvnDellInc.:bvrA08:bd07/26/2011:svnDellInc.:pnXPSL501X:pvrA08:rvnDellInc.:rn:rvrA08:cvnDellInc.:ct8:cvrA08: dmi.product.name: XPS L501X dmi.product.version: A08 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6 version.ia32-libs: ia32-libs 20090808ubuntu26 version.libdrm2: libdrm2 2.4.26-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3 version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1 ** Affects: ubuntu Importance: Undecided Status: New ** Tags: amd64 apport-bug oneiric ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/906615 Title: DisplayPort not working properly Dell XPS L501X Ubuntu 64bits To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/906615/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs