[Bug 107373] Screen recording stutters when SteamVR is running

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107373

            Bug ID: 107373
           Summary: Screen recording stutters when SteamVR is running
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: haagch at frickel.club
        QA Contact: dri-devel at lists.freedesktop.org

Filed for radeonsi but the cause may very well be somewhere else.

RX 480, with mesa git, linux 4.18 and drm-next-4.19-wip.

Typically 60 fps screen recording works quite smoothly, but when SteamVR is
running the produced video is stuttering badly. The actual rendering and
displaying is still smooth, only the recorded video is affected.

Example video: https://youtu.be/yU_SKilk0p8

That's my gstreamer pipeline I use for recording:

gst-launch-1.0 -e ximagesrc display-name=$DISPLAY use-damage=0 startx=0
starty=0 endx=1919 endy=1079 ! multiqueue !
video/x-raw,format=BGRx,framerate=60/1 ! videoconvert !
video/x-raw,format=NV12,framerate=60/1 ! multiqueue ! vaapih265enc
rate-control=cqp bitrate=2000 ! video/x-h265,stream-format=byte-stream !
h265parse ! multiqueue ! matroskamux name=muxer pulsesrc !
audio/x-raw,channels=2 ! multiqueue ! opusenc frame-size=40 complexity=6 !
multiqueue ! muxer. muxer. ! progressreport name=Rec_time ! filesink
location=$HOME/foobar.mkv

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