Good news: I have a had a small eureka moment that results my computer fully booted with graphics hardware fully accelerated. Bad news: it is still a workaround -- I still can't push power button and boot up normally.
Here is the workaround sequence -- it requires another computer that can ssh in: 1. Computer in OFF state, press power. 2. At boot select screen, press `e` and edit kernel line by appending `modprobe.blacklist=radeon` 3. Press `F10` to boot 4. At login screen, click gear icon in upper right and select `Suspend` 5. After computer is in suspended state, press any key to awaken. 6. The display does not "reawaken" and still appears off. 7. From another computer, ssh into the first. 8. Issue `sudo service lightdm stop` 9. Issue `sudo modprobe radeon`. This should succeed! \o/ 10. Issue `sudo service lightdm start` Now the computer should be using correct drm drivers and have full resolution display. Furthermore, Suspend and Wake work successfully. I discovered this using ubuntu mainline kernel 4.8.0-rc5 but have verified it works with mainline 4.8.6 and also with 4.4.0-45. Unfortunately, I am also using the oibaf/graphics-drivers PPA with more recent mesa and libdrm drivers. I plan to test again after removing the PPA but it may take a while. If anyone with this problem is still watching, I'd be curious to hear if my workaround steps work for you. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1568429 Title: 1002:68b8 Radeon won't work with KMS enabled Status in xorg package in Ubuntu: Incomplete Bug description: After upgrading to Xenial today and ensuring the xorg radeon driver was enabled, when booting both monitor lose signal input and the keyboard becomes unresponsive. My hardware: 02:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Juniper XT [Radeon HD 5770] [1002:68b8] (prog-if 00 [VGA controller]) Subsystem: XFX Pine Group Inc. Juniper XT [Radeon HD 5770] [1682:2990] WORKAROUND: Use one of the following kernel parameters: nomodeset radeon.modeset=0 The machine will boot but the radeon driver will not load. Attempting to load radeon driver with `sudo modprobe radeon modeset=1` after booting with modesetting off results in the same fail state explained above. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6 Uname: Linux 4.4.0-18-generic x86_64 .tmp.unity.support.test.1: ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,grid,mousepoll,widget,regex,vpswitch,resize,imgpng,place,gnomecompat,wall,move,animation,fade,snap,expo,scale,unitymtgrabhandles,ezoom,session,workarounds] CompositorRunning: None Date: Sat Apr 9 20:02:22 2016 DistUpgraded: 2016-04-09 16:49:55,340 ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process "./xorg_fix_proprietary.py" (No such file or directory) (8)) DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: vboxhost, 5.0.12, 4.2.0-35-generic, x86_64: installed vboxhost, 5.0.12, 4.4.0-18-generic, x86_64: installed ExtraDebuggingInterest: Yes GpuHangFrequency: Continuously GpuHangReproducibility: Yes, I can easily reproduce it GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Juniper XT [Radeon HD 5770] [1002:68b8] (prog-if 00 [VGA controller]) Subsystem: XFX Pine Group Inc. Juniper XT [Radeon HD 5770] [1682:2990] InstallationDate: Installed on 2013-12-29 (832 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: System manufacturer System Product Name ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic root=UUID=e7310b2e-03b9-4e94-ba8a-d384330592cf ro quiet splash radeon.modeset=0 Renderer: Software SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: Upgraded to xenial on 2016-04-09 (0 days ago) dmi.bios.date: 04/29/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0519 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P5N7A-VM dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0519:bd04/29/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5N7A-VM:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.12.2+16.04.20160331-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Sat Apr 9 19:49:46 2016 xserver.configfile: default xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1568429/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
