[linux-dvb] Re: [ xine ] DEC 2000-t / 3000s Hangs up - Why?

[Alex Woods <linux-dvb@giblets.org>]

On Sat, Jun 05, 2004 at 12:59:51AM +0200, Florian Fischer wrote:
> Konrad Rieck schrieb:
> 
> >On Fri, 2004-06-04 at 19:12, Alex Woods wrote:
> > 
> >
> >>I believe there is a bug in xine with channels that have a video pid of 0 
> >>(ie
> >>DVB radio).  When I switch to one of those in xine it locks up completely 
> >>and
> >>has to kill -9'ed.  You should probably check your channels.conf for those
> >>channels and remove them.
> >>   
> >>
> I played a bit around and after a couple of channel switchen xine 
> freezes. I must deconnect my dec 2000-t box and shutdown. After i 
> reconnect the box everything works fine...but after channel switching 
> the same  :-/

This is an issue with USB timeouts, I assume?  You're seeing messages like 'usb
3-1: bulk timeout on ep4in' in your kernel logs?

> With kernel 2.6 the same as with kernel 2.4.26 and the linuxtv.org 1.1.1 
> drivers.
> I'm using Debian not RetHat.

I've tried various combinations of kernel, dvb drivers and firmware, with no
problems like the ones being described here.  All the kernels I use are stock
kernels, and for normal use I am currently using 2.6.6-rc1 with the dvb driver
included with it, and the 2.17 firmware from the German website.

I can only assume there is some hardware difference that brings about the
issues with timeouts.  The device should really be put on a USB port by itself
rather than on a hub with other devices, although I've seen no issues either
way.  My USB controller is a VIA UHCI one, and the DEC is a year old English
one.  It might be useful for everyone having issues to post their setups so
that some commonality can be found.  Known good configurations would be useful
too.

I'm not sure there is much I can do without being able to replicate the issue
myself though, since I think it might be some kind of timing/sequence problem.

Cheers,
Alex