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List:       mplayer-dvb
Subject:    Re: [Mplayer-dvb] Oh dear, v2.6.6 knocked out my avermedia DVB-T card
From:       Nico Sabbi <nsabbi () tiscali ! it>
Date:       2004-05-18 11:29:13
Message-ID: 40A9F389.2060409 () tiscali ! it
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David Maslen wrote:

> Nico Sabbi <nsabbi@tiscali.it> writes:
> 
> 
> > can you please post:
> > 1) a part of ~/.mplayer/channels.conf
> > 2) the output of:
> > 
> > mplayer -v dvb://ABC
> > when mplayer fails ?
> > Thanks,
> > 
> > 
> 
> Afraid I can't easily at present. Upgraded the kernel to 2.6.6 and now
> my DVB card won't work at all. It was working, but would time out with 2.6.5
> 
> I think it's to do with the changes to the BTTV driver, but I can't
> really tell. 
> 
> How would I go about collecting more information, so as to be able to
> submit a proper bug report?
> 
> Now my logs look like this :(
> 
> May 17 20:30:02 trinity vmunix: i2c_adapter i2c-0: master_xfer: with 1 msgs.
> May 17 20:30:02 trinity vmunix: i2c_adapter i2c-0: sendbytes: error - bailout.
> May 17 20:30:02 trinity vmunix: i2c_adapter i2c-0: master_xfer: with 1 msgs.
> May 17 20:30:02 trinity last message repeated 2 times
> May 17 20:30:02 trinity vmunix: sp887x_initial_setup: firmware upload... \
>                 <7>i2c_adapter i2c-0: master_xfer: with 1 msgs.
> May 17 20:30:02 trinity vmunix: i2c_adapter i2c-0: master_xfer: with 1 msgs.
> May 17 20:30:11 trinity last message repeated 570 times
> May 17 20:30:11 trinity vmunix: done.
> 
> It looks as though this might be the change (from the 2.6.6 changelog);
> 
> <akpm@osdl.org>
> 
> [PATCH] v4l: bttv driver update
> From: Gerd Knorr <kraxel@bytesex.org>
> 
> This patch updates the bttv driver.  Changes:
> 
> (1) several card-specific tweaks.
> (2) make software vs. hardware i2c configurable per TV
> card.
> (3) reinitialize image parameters after chip reset.
> (4) make bttv quite by default on frame drops.
> (5) new insmod option: "debug_latency=1" to enable
> frame drop
> debug messages.
> 
> bttv is quite sensitive to irq latencies, especially
> when capturing both
> video and vbi.  There are several reports about
> problems due to this, I don't
> see that on my machines through.  (5) dumps a
> stracktrace if the driver
> thinks the frame drop is is caused by high latencies
> as experiment, lets see
> whenever that helps ... 
> 
> 
> 

uhm, the logs seem to indicate a problem with the i2c (bus that in your 
case is used to send
tuning parameters to the tuner/demodulator).
Are you sure you added i2c_hw=1 to the options for bttv?
You should report and ask help to linux-dvb@linuxtv.org for drivers 
related problems.

Good luck.
        Nico


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