[linux-dvb] How to debug skips & async with FF dvb card & vdr?

[Hanno Zulla <abos@hanno.de>]

[This is an updated repost from the vdr mailing list,
there was no solution found there.]

Hi,

since upgrading to the most recent Ubuntu release 8.10 (Intrepid), my FF
card is having problems. It is async with audio, both for some live TV
channels and some recordings. It is also skipping while watching live
TV. (This is not a full diagnosis, but the skipping appears to be
limited to encrypted channels.) [1]

vdr didn't show this behaviour with the previous setup (based on Hardy
with default Ubuntu kernel).

However, the logs show nothing. Nothing at all.

So how can I debug this if the system thinks that everything is fine?

As suggested in [4], I have tried the most recent v4l drivers, already,
but that didn't help.

Thanks,

Hanno



Here's the setup:

Athlon X2 CPU

vdr 1.6.0-2, self-compiled e-tobi binary for Ubuntu Intrepid [2]
(e-tobi version number: 1.6.0-8)

Budget DVB-C card used as input,
with CAM and Kabel Deutschland smartcard,
using the driver that comes with Ubuntu's default 2.6.27 kernel
(problem persists with the most recent v4l driver)

FF DVB-C card without CAM, used as input and output,
using the ttpci driver that comes with Ubuntu's default 2.6.27 kernel
plus the modified firmware from [3]
(problem persists with the most recent v4l driver)


Links are mostly German:

[1] http://vdr-portal.de/board/thread.php?threadid=82518
[2] http://www.hanno.de/blog/category/vdr/
[3] http://www.vdr-portal.de/board/thread.php?threadid=59746
[4] http://www.linuxtv.org/pipermail/vdr/2008-December/018754.html


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