[FFmpeg-user] Archlinux update breaks kmsgrab: Failed to get plane resources: Permission denied

[Kai Hendry]

Hi,

Just to follow up, I think I have it working again and the permission errors have fallen away with 5.5.2-arch1-1 and perhaps some other package update.

After much back and forth it would appear the `-crtc_id 48` was causing the initial issue with vaapi_device /dev/dri/renderD128.
[kmsgrab @ 0x5643a7b49280] No usable planes found on CRTC 48.
https://ffmpeg.org/ffmpeg-devices.html#Options-10


So here is what I am using right now:
https://github.com/kaihendry/recordmydesktop2.0/blob/master/x11capture

Issue here is there is considerable lag.

https://s.natalian.org/2020-02-14/lag.mp4
https://s.natalian.org/2020-02-14/lag.log

Kind regards,