Same issue here but with 13.10 64bit, however the problem for me was the Nouveau display driver.
I am using Nvidia, and moved to a proprietary Nvidia driver, rebooted and suspend now works fine. So I would suggest checking what driver you are using and changing to the proprietary driver available for your system. Check in: SYSTEM SETTINGS / SOFTWARE & UPDATES / ADDITIONAL DRIVERS -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/989674 Title: Ubuntu 12.04 i386 does not reboot back Unity from suspend Status in “linux” package in Ubuntu: Invalid Bug description: I have just yesterday upgraded to Ubuntu 12.04 from Ubuntu 11.10 running on my Acer Aspire 7535G. Now it seems that whenever I close my laptop lid to go to suspend or hit the suspend action, after i turn it back on suspend does not load back Unity session. Everything else in the background works but the screen stays lit but black with no image and no lock screen displayed. One work around I have found for this in the meantime is to hit Ctrl + Alt + F7 to manually reload the GUI and that brings me straight to the lock screen as desired. However this is a very annoying bug especially for a laptop user who wishes to quickly place the laptop in sleep mode and recover the current session successfully. WORKAROUND: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/989674/comments/8 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic-pae 3.2.14 Uname: Linux 3.2.0-24-generic-pae i686 NonfreeKernelModules: fglrx .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu6 Architecture: i386 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] CompositorRunning: compiz Date: Fri Apr 27 13:19:17 2012 DistUpgraded: 2012-04-27 00:17:23,180 DEBUG enabling apt cron job DistroCodename: precise DistroVariant: ubuntu DkmsStatus: fglrx-updates, 8.960, 3.2.0-24-generic-pae, i686: installed virtualbox, 4.1.12, 3.0.0-17-generic-pae, i686: installed virtualbox, 4.1.12, 3.2.0-24-generic, i686: installed ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: Advanced Micro Devices [AMD] nee ATI RS780M/RS780MN [Mobility Radeon HD 3200 Graphics] [1002:9612] (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] Device [1025:0237] Advanced Micro Devices [AMD] nee ATI RV710 [Mobility Radeon HD 4500/5100 Series] [1002:9553] (rev ff) (prog-if ff) InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) JockeyStatus: xorg:fglrx_updates - ATI/AMD proprietary FGLRX graphics driver (post-release updates) (Proprietary, Disabled, Not in use) xorg:fglrx - ATI/AMD proprietary FGLRX graphics driver (Proprietary, Disabled, Not in use) MachineType: Acer Aspire 7535 ProcEnviron: LANGUAGE=en_IE:en TERM=xterm PATH=(custom, no user) LANG=en_IE.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic-pae root=UUID=8b69dec6-15bf-4028-8fd5-5aae405ba69e ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to precise on 2012-04-26 (0 days ago) dmi.bios.date: 09/18/2009 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: V2.04 dmi.board.name: JM70PU dmi.board.vendor: Acer dmi.board.version: Rev dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV2.04:bd09/18/2009:svnAcer:pnAspire7535:pvr0100:rvnAcer:rnJM70PU:rvrRev:cvnAcer:ct10:cvrN/A: dmi.product.name: Aspire 7535 dmi.product.version: 0100 dmi.sys.vendor: Acer version.compiz: compiz 1:0.9.7.6-0ubuntu1 version.fglrx-installer: fglrx-installer N/A version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/989674/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
