[FFmpeg-trac] #7649(avutil:new): FFmpeg QSV initialization fails on KBL HadesCanyon (= both Intel & AMD GPUs) when DISPLAY is set

[FFmpeg]

#7649: FFmpeg QSV initialization fails on KBL HadesCanyon (= both Intel & AMD
GPUs) when DISPLAY is set
------------------------------------+----------------------------------
             Reporter:  eero-t      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avutil
              Version:  git-master  |               Resolution:
             Keywords:  qsv         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+----------------------------------

Comment (by eero-t):

 Specifying qsv_device makes it work, as does unsetting $DISPLAY.

 As I need to specify device already for VA-API to work, it's fine for me
 to do that also for QSV.

 Before fixing the render node selection in code, please document
 "qsv_device" usage (for multi-card use-cases) in FFmpeg QSV examples:
 https://trac.ffmpeg.org/wiki/Hardware/QuickSync

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7649#comment:4>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker