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

Oliver Endriss o.endriss at gmx.de
Sun Oct 14 16:03:25 CEST 2007


Soeren Sonnenburg wrote:
> 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.

Please try it with windows. Then we will know whether it is ok or not.

> > > 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.

I'll add this variant to the driver if (and only if) the card works.

> > > # 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....

True.

CU
Oliver

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