[linux-dvb] Re: aver dvb-t

[Martin Stubbs <martin@mstubbs.co.uk>]

> In theory it can be made to work, but I've not managed it yet! If anyone
> has any straight forward instructions please pass them on.
>
> Paul
>
>
> Hi,
> does anybody have experience with aver dvb-t card and linuxtv.org?
> I've found a post from 18th November 2003 where was written: "However
> the picture quality is still not perfect with some of the channels
> severely broken up and the best channels having break ups every few
> seconds." So I wonder if there are still these problems or not.
>
> Thank you

Paul,

I have been playing with my Avermedia DVB-T card since I sent the original 
message in Nov. I also had the chance to do a side by side comparison with a 
Nova-t card on the same antenna system. The conclusion of all my tests is 
that my Avermedia card performs very badly in comparison to the Hauppauge 
card and this is not because of a problem with the linux drivers. I done the 
following:

1) compared the performance of both cards under windows. The Hauppauge card 
tunes all channels with perfect pictures. The Avermedia card works well on 2 
mux but there are significant errors (display problems) on the other 4.

2) compared the cards under linux. The Hauppauge card works as well as in 
windows. The Avermedia card has problems on 5 of the 6 mux

3) used lmilk monitoring of the i2c messages to compare the card setup in 
windows and linux. I have identified some errors/differences but the changes 
to the linux driver have not significantly changed performance. I am still 
working on the i2c logs to try to understand some of the sequences. If/when I 
can make any worthwhile improvement will send the new driver to the list. 
Just in case anyone else tries to use lmilk on this card I found that I had 
to modify its "state machine" as there seems to be a difference/problem with 
the acks/naks that the software doesn't like.

Conclusion

My Avermedia card does not work well and I shall either throw it in the bin or 
find someone on ebay who lives right below a transmitter. 

If you need help getting yours going let me know how far you have got and I 
will try to help

Martin


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