[linux-dvb] Re: Full featured card summary

[Oliver Endriss <o.endriss@gmx.de>]

On Monday 15 March 2004 17:55, Klaus Schmidinger wrote:
> Ok, so I have changed the DiSEqC setup in my VDR to
> 
> S19.2E  11700 V  9750  t v W15 [E0 10 38 F0] W15 A W15 t
> S19.2E  99999 V 10600  t v W15 [E0 10 38 F1] W15 A W15 T
> S19.2E  11700 H  9750  t V W15 [E0 10 38 F2] W15 A W15 t
> S19.2E  99999 H 10600  t V W15 [E0 10 38 F3] W15 A W15 T
> 
> which should be what the "spec" requires, right?
> Not much to my surprize this doesn't work, either.

Really not surprising.

> The multiswitch I use ignores any "analog" switching stuff
> as soon as it receives the first actual DiSEqC sequence.
> So doing the t-v-A-t dance doesn't make any sense.

Ack.

> I also updated the driver to the latest CVS (2004-03-15, 17:31), compiled
> both driver and VDR newly, but there was no improvement.
> 
> So all I can say is that I still believe DiSEqC handling is broken in
> the current dvb-kernel driver.

I had the same problem a long time ago:
DiSEqC didn't work reliable, so I added some retransmissions.

Today I tested again but I was not able to identify any problem.
The DVB hardware did not change, but CPU, kernel, compiler etc.
have been upgraded. Maybe a *timing* issue.

Could you check the DiSEqC message with a logic analyzer?
When I had these problems I tested different DiSEqC messages.
Apparently the first DiSEqC message of a sequence did not work
*sometimes*. But I didn't have the equipment to look at the signals
on the wire.

As a workaround you could try something like this:
S19.2E  11700 V  9750  [E0 10 38 F0] [E1 10 38 F0] W100 [E1 10 38 F0] [E1 10 38 F0]
...

Oliver



-- 
Info:
To unsubscribe send a mail to ecartis@linuxtv.org with "unsubscribe linux-dvb" as subject.