** Description changed: - I'm using a Lenovo laptop with an intel/nvidia Optimus compatible graphics solution. While being able to use prime-select to switch between those cards with Ubuntu 14.X and official nvidia driversit stopped working when switching to ubuntu 15.04 and newer drivers. I'm not sure when the problem first arises, but I'm stucking with it for almost 5 month. - In the meanwhile I stumbled upon errors in xorg.log pointing to insufficient permissions related to DRM and intel driver. I switched to a newer kernel 4.1.x and the xorg.log error had gone, but the general problem remains. A month ago I switched to a wily daily build to test if the bug still exists there. I did a fresh install but the problem is still the same. + I'm using a Lenovo laptop with an intel/nvidia Optimus compatible graphics solution. While being able to use prime-select to switch between those cards with Ubuntu 14.X and official nvidia drivers it stopped working when switching to ubuntu 15.04 and newer drivers. I'm not sure when the problem first arises, but I'm stucking with it for almost 5 month. + In the meanwhile I stumbled upon errors in xorg.log pointing to insufficient permissions related to DRM and intel driver. I switched to a newer kernel 4.1.x and the xorg.log error had gone, but the general problem remains. + A month ago I switched to a 15.10 daily build to test if the bug still exists there. I did a fresh install but the problem is still the same. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-14.16-generic 4.2.2 Uname: Linux 4.2.0-14-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: - NVRM version: NVIDIA UNIX x86_64 Kernel Module 355.11 Wed Aug 26 16:35:41 PDT 2015 - GCC version: gcc version 5.2.1 20151003 (Ubuntu 5.2.1-21ubuntu2) + NVRM version: NVIDIA UNIX x86_64 Kernel Module 355.11 Wed Aug 26 16:35:41 PDT 2015 + GCC version: gcc version 5.2.1 20151003 (Ubuntu 5.2.1-21ubuntu2) ApportVersion: 2.19-0ubuntu1 Architecture: amd64 Date: Thu Oct 8 18:18:55 2015 DistUpgraded: Fresh install DistroCodename: wily DistroVariant: ubuntu DkmsStatus: - bbswitch, 0.7, 4.2.0-10-generic, x86_64: installed - bbswitch, 0.7, 4.2.0-14-generic, x86_64: installed - nvidia-355, 355.11, 4.2.0-14-generic, x86_64: installed + bbswitch, 0.7, 4.2.0-10-generic, x86_64: installed + bbswitch, 0.7, 4.2.0-14-generic, x86_64: installed + nvidia-355, 355.11, 4.2.0-14-generic, x86_64: installed GraphicsCard: - Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) - Subsystem: Lenovo Device [17aa:21fc] - NVIDIA Corporation GF108M [GeForce GT 620M] [10de:0de8] (rev a1) (prog-if 00 [VGA controller]) - Subsystem: Lenovo Device [17aa:21fc] + Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) + Subsystem: Lenovo Device [17aa:21fc] + NVIDIA Corporation GF108M [GeForce GT 620M] [10de:0de8] (rev a1) (prog-if 00 [VGA controller]) + Subsystem: Lenovo Device [17aa:21fc] InstallationDate: Installed on 2015-09-12 (26 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150911) MachineType: LENOVO 33643EG ProcEnviron: - LC_CTYPE=de_DE.UTF-8 - TERM=linux - PATH=(custom, no user) - LANG=de_DE.UTF-8 - SHELL=/usr/bin/zsh + LC_CTYPE=de_DE.UTF-8 + TERM=linux + PATH=(custom, no user) + LANG=de_DE.UTF-8 + SHELL=/usr/bin/zsh ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-14-generic.efi.signed root=UUID=55cf0b06-9493-479a-a524-07e52d5be60a ro noprompt persistent quiet splash vt.handoff=7 SourcePackage: xorg UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/09/2015 dmi.bios.vendor: LENOVO dmi.bios.version: GAETA0WW (2.60 ) dmi.board.asset.tag: Not Available dmi.board.name: 33643EG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrGAETA0WW(2.60):bd04/09/2015:svnLENOVO:pn33643EG:pvrThinkPadS430:rvnLENOVO:rn33643EG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 33643EG dmi.product.version: ThinkPad S430 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+15.10.20151002-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.0-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.0-1ubuntu1 version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu3 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Thu Oct 8 18:15:17 2015 xserver.configfile: /etc/X11/xorg.conf xserver.errors: - + xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.17.2-1ubuntu9
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1504220 Title: Black screen after "prime-select nvidia" and restart of lightdm/reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1504220/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
