This also effects my laptop (xubuntu 14.04 x64) Toshiba Portege R835-p70. Intel core i5-2410M Mobile Intel HM65 Express Intel HD Graphics 3000
Steps to reproduce: 1. Reboot computer 2. Log in normally 3. Close lid and allow computer to enter sleep 4. Wake computer (login screen appears) 5. Enter password to unlock session The screen will immediately go blank (both backlight and LCD). Switching to a virtual terminal or SSHing into the box works fine. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1283938 Title: Ubuntu 14.04 blank screen after wakeup from sleep Status in “xserver-xorg-video-ati” package in Ubuntu: Confirmed Bug description: Hardware: Samsung Serie 5 AMD notebook (find in attachment the hardware profile). OS: Ubuntu 14.04 (updated today). After wakeup the notebook from the sleep mode, the screen goes blank while the OS and the hardware is awake. (I can also press Ctrl+F1 and Ctrl+Alt+Del to reboot the system). This problem is not happening with the AMD property drivers (but they have another bug, i can't set up the brighness of the monitor). The problem in my opinion is related to this package: xserver-xorg- video-ati. Changing "quiet splash" with "nomodeset" into /etc/default/grub makes the wakeup working, but the pc is really slow (can't be used), also after the normal start up. Best regards and have a good work. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xserver-xorg-video-ati 1:7.3.0-1ubuntu2 ProcVersionSignature: Ubuntu 3.13.0-11.31-generic 3.13.3 Uname: Linux 3.13.0-11-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.13.2-0ubuntu5 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: Mon Feb 24 12:58:07 2014 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu DkmsStatus: virtualbox, 4.3.6, 3.13.0-11-generic, x86_64: installed GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Trinity [Radeon HD 7500G] [1002:990a] (prog-if 00 [VGA controller]) Subsystem: Samsung Electronics Co Ltd Device [144d:c660] Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7550M/7570M/7650M] [1002:6841] (rev ff) (prog-if ff) InstallationDate: Installed on 2014-02-22 (1 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140218) MachineType: SAMSUNG ELECTRONICS CO., LTD. 535U4C ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-11-generic root=UUID=9f8c7e92-a6ea-41fd-9489-a256c8b9f5d5 ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-ati UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/03/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P06RAF.N93.130403.LEO dmi.board.asset.tag: No Asset Tag dmi.board.name: NP535U4X-S01TH dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP06RAF.N93.130403.LEO:bd04/03/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn535U4C:pvrP06RAF:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP535U4X-S01TH:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 535U4C dmi.product.version: P06RAF dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. version.compiz: compiz 1:0.9.11+14.04.20140218-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0~rc1-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0~rc1-1ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Mon Feb 24 12:54:54 2014 xserver.configfile: default xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension. xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.15.0-1ubuntu6 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1283938/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp