Same problem here with ACER 1830t and intel graphic card. striking the backlight key brings back the screen on. But playing with backlight is not working well at all (pressing once gives me around 50 % backlight, twice 90% and 3 times 100%...)
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1130938 Title: Black screen after resuming from suspend [Dell XPS 15z] Status in “xserver-xorg-video-nouveau” package in Ubuntu: Confirmed Bug description: The laptop suspends as normal The laptop resumes as intended but the screen is black If I plug into an external monitor and then unplug, the screen then shows up as normal on my laptop If I use the external monitor, then suspend, then resume, the external monitor screen comes up black, I have to then unlug and it screen shows up on the laptop My system needs the following boot parameters to turn the screen on after boot (https://wiki.ubuntu.com/HardwareSupport/Machines/Laptops/Dell/XPS/15z) acpi_backlight=vendor dell_laptop.backlight=0 ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-7.14-generic 3.8.0 Uname: Linux 3.8.0-7-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.8-0ubuntu4 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 Date: Wed Feb 20 21:57:02 2013 DistUpgraded: Fresh install DistroCodename: raring DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:0446] NVIDIA Corporation GF108 [GeForce GT 540M] [10de:0df5] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:0446] InstallationDate: Installed on 2013-02-11 (9 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130210) MachineType: Dell Inc. Dell System XPS 15Z MarkForUpload: True ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-7-generic root=UUID=93acc5a7-d531-4af3-a215-472a7bd065d6 ro acpi_backlight=vendor dell_laptop.backlight=0 quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/27/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A04 dmi.board.name: 060G42 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA04:bd07/27/2011:svnDellInc.:pnDellSystemXPS15Z:pvr:rvnDellInc.:rn060G42:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS 15Z dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.9~daily13.02.19-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.42-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.2-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.2-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.2-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.2-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.6-0ubuntu3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1130938/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
