Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

Sakari Ailus
2014-11-04T23:32:57Z

Sakari Ailus wrote:
> yavta does, for example, print both the monotonic timestamp from the buffer
> and the time when the buffer has been dequeued:
>
> <URL:http://git.ideasonboard.org/yavta.git>
>
> $ yavta -c /dev/video0
>
> should do it. The first timestamp is the buffer timestamp, and the latter is
> the one is taken when the buffer is dequeued (by yavta).

Removing the uvcvideo module and loading it again with trace=4096 before
capturing, and then kernel log would provide more useful information.

--
Sakari Ailus
sakari.ailus@iki.fi