Are you sure the black screens are your only problem? I have problems with keyboard missing keypresses, touchpad doing strange stuff, hard drive performance, random crashes and caps-lock blinks, wifi required driver from github and manual setting of antenna. I ran sysbench and disk was performing at about 1.3mb/s speed only! There was at least 1 other person who wrote to my bug report that he was having the same problems.
With 4.8 hwe kernel, it does not even boot anymore. Looking at all the bug reports, the problems seem to be only getting worse and worse with updates. It is almost like linux is trying to irradicate AMD machines... Here is my bug report for the hard drive performance, are you able to replicate it? https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616830 -- 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/1642078 Title: Black screen at startup on Carrizo Status in xorg package in Ubuntu: Confirmed Bug description: Problem description: The laptop starts up fine but the screen is black; even though the screen is black I can hear the drum sound prompting me to log in. After rebooting laptop all is well with the screen and I have a fully functional system. Sometimes, though, I have to restart twice. After some search I found people reporting the same issue: https://ubuntuforums.org/showthread.php?t=2337274 or similar issues: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-amdgpu/+bug/1577074?comments=all Additional information: 1) Ubuntu release: Description: Ubuntu 16.04.1 LTS Release: 16.04 2) Package version: xorg: Instalados: 1:7.7+13ubuntu3 Candidato: 1:7.7+13ubuntu3 Tabla de versión: *** 1:7.7+13ubuntu3 500 500 http://co.archive.ubuntu.com/ubuntu xenial/main amd64 Packages 100 /var/lib/dpkg/status 3) Computer information: Processor: AMD A10-8700 Radeon R6 Graphic card: Gallium 0.4 on AMD Carrizo (DRM 3.1.0, LLVM 3.8.0) Kind regards, Victor ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-47.68-generic 4.4.24 Uname: Linux 4.4.0-47-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.1 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: Tue Nov 15 17:56:57 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Carrizo [1002:9874] (rev c5) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Carrizo [103c:8246] InstallationDate: Installed on 2016-11-10 (5 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: HP HP Pavilion Notebook ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-47-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/03/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F.03 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 8246 dmi.board.vendor: HP dmi.board.version: 98.11 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF.03:bd05/03/2016:svnHP:pnHPPavilionNotebook:pvr:rvnHP:rn8246:rvr98.11:cvnHP:ct10:cvrChassisVersion: dmi.product.name: HP Pavilion Notebook dmi.sys.vendor: HP version.compiz: compiz 1:0.9.12.2+16.04.20160714-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2 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: Tue Nov 15 17:21:18 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.3-1ubuntu2.2 xserver.video_driver: amdgpu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1642078/+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
