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Created by andyxhliu94@andyxhliu94

i965_drv_video.so init failed

Hi, I encountered a similar problem when try using Gstreamer VAAPI plugins on Ubuntu to hardware decode the video stream. When I run vainfo for i965 driver it failed. Here is the error:

mjzh@mjzh:~$ vainfo
libva info: VA-API version 1.6.0
libva info: va_getDriverName() returns -1
libva info: User requested driver 'i965'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva error: /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so init failed
libva info: va_openDriver() returns -1
vaInitialize failed with error code -1 (unknown libva error),exit

Initially, the default driver name is iHD, and I have changed the driver name to i965, and driver path to /usr/lib/x86_64-linux-gnu/dri as follows (The reason why I use iHD rather than i965 is that I think iHD is not officially supported before gstreamer-vaapi 1.18, currently I am using gstreamer-vaapi 1.16):

export LIBVA_DRIVER_NAME=i965 
export LIBVA_DRIVERS_PATH=/usr/lib/x86_64-linux-gnu/dri

However, I can successfully run vainfo for i965 driver in root, as shown below (although it showed a error: error: can't connect to X server!)

root@mjzh:/home/mjzh# vainfo
X11 connection rejected because of wrong authentication.
error: can't connect to X server!
libva info: VA-API version 1.6.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'i965'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.6 (libva 2.1.0)
vainfo: Driver version: Intel i965 driver for Intel(R) Broxton - 2.1.0
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointEncSlice
      VAProfileH264Main               : VAEntrypointEncSliceLP
      VAProfileH264High               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointEncSlice
      VAProfileH264High               : VAEntrypointEncSliceLP
      VAProfileH264MultiviewHigh      : VAEntrypointVLD
      VAProfileH264MultiviewHigh      : VAEntrypointEncSlice
      VAProfileH264StereoHigh         : VAEntrypointVLD
      VAProfileH264StereoHigh         : VAEntrypointEncSlice
      VAProfileVC1Simple              : VAEntrypointVLD
      VAProfileVC1Main                : VAEntrypointVLD
      VAProfileVC1Advanced            : VAEntrypointVLD
      VAProfileNone                   : VAEntrypointVideoProc
      VAProfileJPEGBaseline           : VAEntrypointVLD
      VAProfileJPEGBaseline           : VAEntrypointEncPicture
      VAProfileVP8Version0_3          : VAEntrypointVLD
      VAProfileVP8Version0_3          : VAEntrypointEncSlice
      VAProfileHEVCMain               : VAEntrypointVLD
      VAProfileHEVCMain               : VAEntrypointEncSlice
      VAProfileHEVCMain10             : VAEntrypointVLD
      VAProfileVP9Profile0            : VAEntrypointVLD

here is the result of gst-inspect-1.0 vaapi:

mjzh@mjzh:~$ gst-inspect-1.0 vaapi
Plugin Details:
  Name                     vaapi
  Description              VA-API based elements
  Filename                 /opt/intel/openvino_2020.3.194/data_processing/gstreamer/lib/gstreamer-1.0/libgstvaapi.so
  Version                  1.16.2
  License                  LGPL
  Source module            gstreamer-vaapi
  Binary package           gstreamer-vaapi
  Origin URL               http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer

  vaapih264feienc: VA-API H264 FEI Advanced encoder (Experimental)
  vaapih264enc: VA-API H264 encoder
  vaapijpegenc: VA-API JPEG encoder
  vaapih265enc: VA-API H265 encoder
  vaapisink: VA-API sink
  vaapidecodebin: VA-API Decode Bin
  vaapipostproc: VA-API video postprocessing
  vaapih265dec: VA-API H265 decoder
  vaapivp9dec: VA-API VP9 decoder
  vaapivp8dec: VA-API VP8 decoder
  vaapivc1dec: VA-API VC1 decoder
  vaapih264dec: VA-API H264 decoder
  vaapimpeg2dec: VA-API MPEG2 decoder
  vaapijpegdec: VA-API JPEG decoder

here is the result of lshw -c video:

mjzh@mjzh:~$ sudo lshw -c video
  *-display                 
       description: VGA compatible controller
       product: Celeron N3350/Pentium N4200/Atom E3900 Series Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 0a
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:134 memory:90000000-90ffffff memory:80000000-8fffffff ioport:f000(size=64) memory:c0000-dffff

here is the result of lspci | grep VGA:

mjzh@mjzh:~$ sudo lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series Integrated Graphics Controller (rev 0a)

here is the available device by running ls /dev/dri:

mjzh@mjzh:~$ ls /dev/dri
by-path  card0  renderD128

here is the available video drivers by running ls /usr/lib/x86_64-linux-gnu/dri | grep drv_video.so:

mjzh@mjzh:~$ ls /usr/lib/x86_64-linux-gnu/dri | grep drv_video.so
i965_drv_video.so
nouveau_drv_video.so
nvidia_drv_video.so
r600_drv_video.so
radeonsi_drv_video.so
s3g_drv_video.so
vdpau_drv_video.so

here is the result of strace vainfo: strace_vainfo_output.txt

here is the environment:

CPU: Intel N4200
IGPU: Intel Graphics 505
Ubuntu: Ubuntu 18.04