victor gasper: 1) Could you please post the missing information from a bad boot following https://wiki.ubuntu.com/DebuggingKernelBoot ?
2) To clarify, when booting up and using GRUB to boot into an older kernel, would this return to the previous behavior? 3) Regarding the suggested four kernel parameters, are you advising you tested each one individually (not in combination) and it had no affect? ** Summary changed: - Black screen at startup on Carrizo + [HP Pavilion 14-av005la (ENERGY STAR)] Black screen at startup ** Tags added: bios-outdated-f.26 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu.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: [HP Pavilion 14-av005la (ENERGY STAR)] Black screen at startup Status in xorg package in Ubuntu: Incomplete Bug 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. WORKAROUND: Reboot once, sometimes twice. 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
