I'm sorry, but there's no way I can do that. -- 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/1580311
Title: Laptop panel output only if external display connected Status in linux package in Ubuntu: Incomplete Bug description: Hi, Since updating to 16.04 with kernel vmlinuz-4.4.0-22-generic my laptop no longer completes the boot sequence under a normal boot scenario - the "loading initrd..." message is displayed, then, when the VGA modesetting usually kicks the display into a higher resolution, the screen blanks and the startup apparently halts. This is a regression from 4.2 series kernels. I can successfully bring up the system if I revert to 4.2.0-35, and also if I boot 4.4 with the failsafe setting (but then X is painfully slow, as its using software) Matt ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5 Uname: Linux 4.2.0-35-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2 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 May 10 20:29:56 2016 DistUpgraded: 2016-05-04 00:10:55,503 DEBUG icon theme changed, re-reading DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: virtualbox, 5.0.18, 4.2.0-35-generic, x86_64: installed virtualbox, 5.0.18, 4.4.0-21-generic, x86_64: installed virtualbox, 5.0.18, 4.4.0-22-generic, x86_64: installed ExtraDebuggingInterest: Yes, if not too technical GpuHangFrequency: Continuously GpuHangReproducibility: Yes, I can easily reproduce it GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: Intel Corporation Device [8086:22b1] (rev 21) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:06ac] InstallationDate: Installed on 2015-05-12 (364 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Dell Inc. Inspiron 15-3552 PlymouthDebug: Error: [Errno 13] Permission denied: '/var/log/plymouth-debug.log' ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-35-generic.efi.signed root=/dev/mapper/ubuntu--15--vg-root ro plymouth:debug i8042.nopnp=1 vesafb.invalid=1 drm.debug=0xe SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: Upgraded to xenial on 2016-05-03 (6 days ago) dmi.bios.date: 11/17/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: 4.0.3 dmi.board.name: 0CP33T dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvr4.0.3:bd11/17/2015:svnDellInc.:pnInspiron15-3552:pvr4.0.3:rvnDellInc.:rn0CP33T:rvrA00:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Inspiron 15-3552 dmi.product.version: 4.0.3 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 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 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 May 10 12:26:45 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 5578 vendor CMN xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1580311/+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