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[Ales <1525721@xxxxxxxxxxxxxxxxxx>]

Done. Thank you for your help.

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https://bugs.launchpad.net/bugs/1525721

Title:
  Can't use hardware decoding (vaapi) with fglrx: Assertion `buffers'
  failed

Status in xorg package in Ubuntu:
  Invalid

Bug description:
  mpv --hwdec=auto movie.mkv gives this:

    libva info: VA-API version 0.38.0
    libva info: va_getDriverName() returns 0
    libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
    libva info: Found init function __vaDriverInit_0_38
    libva info: va_openDriver() returns 0
    Using hardware decoding (vaapi).
    VO: [opengl] 1904x1036 vaapi
    mpv: dri2_util.c:132: dri2GetRenderingBuffer: Assertion `buffers' failed.
    (SIGABRT) (core dumped)

  I have hybrid graphics Intel Haswell and AMD Radeon R5 M255.
  I have installed fglrx-updates and in AMD Catalyst control center switched to dedicated GPU.
  I seems to me that this setting is ignored and hardware decoding is tried on Intel instead. 

  fglrxinfo:
    display: :0  screen: 0
    OpenGL vendor string: Advanced Micro Devices, Inc.
    OpenGL renderer string: AMD Radeon R5 M255 
    OpenGL version string: 4.5.13399 Compatibility Profile Context 15.201.1151

  amdconfig --pxl : 
    PowerXpress: Discrete GPU is active (High-Performance mode).

  lspci | grep VGA:
    00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)

  vainfo:
  libva info: VA-API version 0.38.0
  libva info: va_getDriverName() returns 0
  libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
  libva info: Found init function __vaDriverInit_0_38
  libva info: va_openDriver() returns 0
  vainfo: VA-API version: 0.38 (libva 1.6.0)
  vainfo: Driver version: Intel i965 driver for Intel(R) Haswell Mobile - 1.6.0
  vainfo: Supported profile and entrypoints
        VAProfileMPEG2Simple            : VAEntrypointVLD
        VAProfileMPEG2Simple            : VAEntrypointEncSlice
        VAProfileMPEG2Main              : VAEntrypointVLD
        VAProfileMPEG2Main              : VAEntrypointEncSlice
        VAProfileH264ConstrainedBaseline: VAEntrypointVLD
        VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
        VAProfileH264Main               : VAEntrypointVLD
        VAProfileH264Main               : VAEntrypointEncSlice
        VAProfileH264High               : VAEntrypointVLD
        VAProfileH264High               : VAEntrypointEncSlice
        VAProfileH264MultiviewHigh      : VAEntrypointVLD
        VAProfileH264MultiviewHigh      : VAEntrypointEncSlice
        VAProfileH264StereoHigh         : VAEntrypointVLD
        VAProfileH264StereoHigh         : VAEntrypointEncSlice
        VAProfileVC1Simple              : VAEntrypointVLD
        VAProfileVC1Main                : VAEntrypointVLD
        VAProfileVC1Advanced            : VAEntrypointVLD
        VAProfileNone                   : VAEntrypointVideoProc
        VAProfileJPEGBaseline           : VAEntrypointVLD
        VAProfileH264MultiviewHigh      : VAEntrypointVLD
        VAProfileH264MultiviewHigh      : VAEntrypointEncSlice
        VAProfileH264StereoHigh         : VAEntrypointVLD
        VAProfileH264StereoHigh         : VAEntrypointEncSlice

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
  Uname: Linux 4.2.0-19-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: KDE
  Date: Sun Dec 13 23:04:06 2015
  DistUpgraded: Fresh install
  DistroCodename: wily
  DistroVariant: kubuntu
  DkmsStatus: fglrx-updates-core, 15.201, 4.2.0-19-generic, x86_64: installed
  ExtraDebuggingInterest: No
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:2248]
     Subsystem: Hewlett-Packard Company Device [103c:224a]
  InstallationDate: Installed on 2015-10-23 (51 days ago)
  InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: Hewlett-Packard HP ProBook 450 G2
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-19-generic root=UUID=c9e0c6ee-c8a4-4d1a-a46e-a3b79c38f774 ro
  SourcePackage: xorg
  UdevLog: Error: [Errno 2] Adresář nebo soubor neexistuje: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/20/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: M74 Ver. 01.05
  dmi.board.name: 2248
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 67.22
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrM74Ver.01.05:bd09/20/2014:svnHewlett-Packard:pnHPProBook450G2:pvrA3008CD10003:rvnHewlett-Packard:rn2248:rvrKBCVersion67.22: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.fglrx-installer: fglrx-installer 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: Sun Dec 13 00:32:49 2015
  xserver.configfile: /etc/X11/xorg.conf
  xserver.errors:
   Screen 1 deleted because of no matching config section.
   AIGLX error: failed to open /usr/X11R6/lib64/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib64/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
   AIGLX error: failed to open /usr/lib64/dri/fglrx_dri.so, error[/usr/lib64/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
   AIGLX error: failed to open /usr/X11R6/lib/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
   fglrx(0): XMM: Fail to unregister UVDFWVIRQ! (EE) fglrx(0):
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.17.2-1ubuntu9.1
  xserver.video_driver: fglrx

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