[linux-dvb] Re: Tuning problem

[Lauri Pesonen <lauri.pesonen@firsthop.com>]

On Fri, Jan 04, 2002 at 05:32:20PM +0100, Ralph Metzler wrote:
> Hi,

>  > I laso compiled VDR successfully. It starts and says that it finds two DVB 
>  > cards. I tried usinf the provided channels.conf.cable file, but the tuning 
>  > obviously fails since the frquencies are wrong. The system log shows that 
>  > VDR tries to tune the card to the channel, so I'm assuming that everything 
>  > is OK with the cards regardless of the error message about the firmware.
> 
> Tuning is independent of the firmware for DVB-C (in DVB-S the firmware
> handles DiSEqC). Still it would be helpful to know what it said. 

Here's the whole system log when loading the modules:

Jan  4 22:19:58 localhost kernel: i2c-core.o: i2c core module
Jan  4 22:19:58 localhost kernel: Linux video capture interface: v1.00
Jan  4 22:19:58 localhost kernel: i2c-core.o: driver VES1893 DVB 
demodulator registered.
Jan  4 22:19:58 localhost kernel: i2c-core.o: driver VES1820 DVB 
demodulator registered.
Jan  4 22:19:58 localhost kernel: i2c-core.o: driver L64781 DVB 
demodulator registered.
Jan  4 22:19:58 localhost kernel: L64781: init done
Jan  4 22:19:58 localhost kernel: i2c-core.o: driver tda8083 DVB 
demodulator registered.
Jan  4 22:19:58 localhost kernel: i2c-core.o: driver stv0299 DVB 
demodulator registered.
Jan  4 22:19:58 localhost kernel: i2c-core.o: driver i2c TV tuner driver 
registered.
Jan  4 22:19:59 localhost kernel: saa7146_core.o: saa7146(1): bus:0, 
rev:1, mem:0xd08db000.
Jan  4 22:19:59 localhost kernel: L64781: no L64781 found ...
Jan  4 22:19:59 localhost kernel: i2c-core.o: adapter saa7146(1) 
registered as adapter 0.
Jan  4 22:19:59 localhost kernel: saa7146_core.o: saa7146(2): bus:0, 
rev:1, mem:0xd0d5e000.
Jan  4 22:19:59 localhost kernel: L64781: no L64781 found ...
Jan  4 22:19:59 localhost kernel: i2c-core.o: adapter saa7146(2) 
registered as adapter 1.
Jan  4 22:20:07 localhost kernel: wait-for-debi-done maxwait: 500000
Jan  4 22:20:07 localhost kernel: dvb: debi test in bootarm() failed: 
00000000 != 10325476
Jan  4 22:20:07 localhost kernel: dvb1: AV711536924483 - firm 1d18c010, 
rtsl 20000003, vid 20000003, app 00000000
Jan  4 22:20:07 localhost kernel: dvb: 2 dvb(s) found!

I'm under the impression that I should see an image on the composite out 
when I load the driver. This is not the case...

>  > I'll get in touch with the cable company next ;)
> 
> They should at least be able to tell you what modulation they
> use, if they use spectrum inversion, etc.
> Since the TT software also fails maybe they are using some kind of
> exotic setup.

I got the following frequency list from them, so now I know what to look 
for at least... :

Freq.		QAM	Srate	
283             128     5,9
290             128     5,9
297             128     5,9   

146             128     6,9
154             128     6,9
162             64      6,9
170             128     6,9


Additionally I was instructed by one of the list subscribers to get this 
stuff working on Windows first. He suggested that I should strip 
everything out of my PC and try to get the cards working. I think I'll do 
that before venturing into the Linux world again...

Thanks for all the help guys! I can't wait to get everything working ;)

> Ralph

-- Lauri


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