Comment 0 for bug 2029402

Playing some Videos mostly HD, causes this error.

```
[ffmpeg/video] vp9: No support for codec vp9 profile 0.
[ffmpeg/video] vp9: No support for codec vp9 profile 0.
[ffmpeg/video] vp9: Failed setup for format vaapi: hwaccel initialisation returned error.
libva info: VA-API version 1.18.0
libva info: Trying to open /snap/mpv/33/gnome-platform/usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_18
libva info: va_openDriver() returns 0
```

Some lags are observed in videos that start with this error.