[linux-dvb] Technotrend DVB-T 1200 rev 1.2 does not tune/work

Soeren Sonnenburg dvb-ml at nn7.de
Sun Oct 14 07:40:11 CEST 2007


On Sat, 2007-10-13 at 23:52 +0200, Oliver Endriss wrote:
> Soeren Sonnenburg wrote:
> > Dear all,
> > 
> > I am having problems with a full featured TT-1200 dvb-t (sometimes also
> > called technotrend dvb-t premium) card. 
> > 
> > It does not find the frontend and if I manually fiddle with the code (I
> > simply had to remove the break in line 2176 of av7110.c in hg to allow
> 
> There is no 'break' on line 2176, should be 2167. (?)

yes, sorry.

> > fallthrough) to make it load the Spase SP8870 DVB-T it successfully
> > registers this frontend and loads the sp8870 firmware but then it still
> > refuses to tune to any channel...
> 
> Did this card ever work before?

I just purchased it, so I cannot tell whether it ever worked with linux.
However the guy from whom I got the card claimed that it works w/
windows.

> > As the card is listed as supported I am a bit confused what is going on
> > - any ideas? 
> > 
> > Soeren
> > 
> > Details follow:
> > 
> > kernel is 2.6.23.1
> > 
> > #lspci
> > 00:0b.0 0480: 1131:7146 (rev 01)
> >         Subsystem: 13c2:0000
> 
> This sub-system id is normally used by DVB-S cards.
> Apparently there is one more exception. :-(

Yes... looks like it is yet another extremely old prototypical variant
of this card.

> > # dmesg
> >  
> > dvb-ttpci: info @ card 2: firm f0240009, rtsl b0250018, vid 71010068, app 80f12623
> > dvb-ttpci: firmware @ card 2 supports CI link layer interface
> > dvb-ttpci: Crystal audio DAC @ card 2 detected
> > saa7146_vv: saa7146 (2): registered device video1 [v4l2]
> > saa7146_vv: saa7146 (2): registered device vbi1 [v4l2]
> > ves1820: ves1820_readreg(): readreg error (reg == 0x1a,ret == -121)
> > DVB: registering frontend 2 (Spase SP8870 DVB-T)...
> > input: DVB on-card IR receiver as /devices/pci0000:00/0000:00:0b.0/input/input9
> > dvb-ttpci: found av7110-1.
> > 
> > hires photo taken of the card or further info on request...
> 
> Is this your card?
> http://vdr-wiki.de/wiki/index.php/DVB-T_full-featured-Karten

yes, except that the stickers are different, the one on the metal box
says TDLB7X257A 991006 ALPS and instead of the bar code I have
TT-DVB-1.2 Ve0034/00

> Please note that this card is not able to tune to VHF channels!

Yes, but VHF is only 30 MHz to 300 MHz and according to 
http://www.telesat-info.de/sat/dvbt/dvbthome.html
this affects only channel 5 & 7 (FAB/arte).

So it should not be a problem to tune to 'Das Erste' or so....

Soeren



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