Thank you for reporting this bug to Ubuntu. Ubuntu 15.10 (wily) reached end-of-life on July 28, 2016.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed. ** Changed in: xorg (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1539046 Title: libGL error: failed to open drm device: Permission denied Status in xorg package in Ubuntu: Won't Fix Bug description: After some update (unfortunately I'm not sure what) if I try to play a videofile (e.g. mpv movie.mkv) I get this error: libGL error: failed to open drm device: Permission denied I think from this message is not very clear why is that. I figured out I was not in "video" group: "id user_name" I had to do this: "usermod -aG video user_name " and then restart X (logout, login). After that it works again. So I suspect there is some problem there. Why libGL cannot be used without membership in video group or why a regular user is not in video group. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-25.30-generic 4.2.6 Uname: Linux 4.2.0-25-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Thu Jan 28 12:54:51 2016 DistUpgraded: Fresh install DistroCodename: wily DistroVariant: ubuntu DkmsStatus: fglrx-core, 15.201, 4.2.0-25-generic, x86_64: installed ExtraDebuggingInterest: I just need to know a workaround GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:2248] InstallationDate: Installed on 2015-10-23 (96 days ago) InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: Hewlett-Packard HP ProBook 450 G2 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-25-generic root=UUID=c9e0c6ee-c8a4-4d1a-a46e-a3b79c38f774 ro SourcePackage: xorg Symptom: display UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/26/2015 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M74 Ver. 01.16 dmi.board.name: 2248 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 67.24 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM74Ver.01.16:bd11/26/2015:svnHewlett-Packard:pnHPProBook450G2:pvrA3008CD10003:rvnHewlett-Packard:rn2248:rvrKBCVersion67.24:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ProBook 450 G2 dmi.product.version: A3008CD10003 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1 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+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Wed Jan 27 22:49:34 2016 xserver.configfile: /etc/X11/xorg.conf xserver.errors: Screen 1 deleted because of no matching config section. xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1125 vendor LGD xserver.version: 2:1.17.2-1ubuntu9.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1539046/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

