[linux-dvb] Re: [P7131 Dual] scan : tuning failed

hermann pitton hermann-pitton at arcor.de
Fri Dec 1 22:30:34 CET 2006


Hello,

Am Freitag, den 01.12.2006, 10:56 +0100 schrieb Frédéric Massot:
> tomlohave at gmail.com wrote:
> > 
> >> I also tested with the file modified according to the trick of Hermann 
> >> Pitton (add a positive offset of 167000Hz) :
> > 
> > Hello
> > 
> > Try with + 166000 Hz if you are in france
> > 
> > look here : http://doc.ubuntu-fr.org/materiel/tnt
> > 
> 
> Hi,
> 
> I made a success of with scan the channels with a vanilla Linux kernel 
> 2.6.18 and the master v4l-dvb development repository (downloaded the 
> 28/11/2006). I did not need to use kradio before.  :o)

Thanks for your report in this case!

> The firmware loaded correctly :
> 
> Linux video capture interface: v2.00
> saa7130/34: v4l2 driver version 0.2.14 loaded
> saa7133[0]: found at 0000:05:03.0, rev: 209, irq: 169, latency: 64, 
> mmio: 0xff7ff000
> saa7133[0]: subsystem: 1043:4876, board: ASUSTeK P7131 Dual 
> [card=78,autodetected]
> saa7133[0]: board init: gpio is 40000
> saa7133[0]: i2c eeprom 00: 43 10 76 48 54 20 1c 00 43 43 a9 1c 55 d2 b2 92
> saa7133[0]: i2c eeprom 10: ff ff ff 0f ff 20 ff ff ff ff ff ff ff ff ff ff
> saa7133[0]: i2c eeprom 20: 01 40 01 02 03 01 01 03 08 ff 00 d5 ff ff ff ff
> saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7133[0]: i2c eeprom 40: ff 21 00 c2 96 10 03 32 55 50 ff ff ff ff ff ff
> saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> tuner 1-004b: chip found @ 0x96 (saa7133[0])
> tuner 1-004b: setting tuner address to 61
> tuner 1-004b: type set to tda8290+75a
> saa7133[0]: registered device video0 [v4l2]
> saa7133[0]: registered device vbi0
> saa7133[0]: registered device radio0
> DVB: registering new adapter (saa7133[0]).
> DVB: registering frontend 0 (Philips TDA10046H DVB-T)...
> saa7134 ALSA driver for DMA sound loaded
> saa7133[0]/alsa: saa7133[0] at 0xff7ff000 irq 169 registered as card -1
> tda1004x: setting up plls for 48MHz sampling clock
> tda1004x: timeout waiting for DSP ready
> tda1004x: found firmware revision 0 -- invalid
> tda1004x: waiting for firmware upload...
> tda1004x: found firmware revision 29 -- ok
> tda1004x: setting up plls for 48MHz sampling clock
> tda1004x: found firmware revision 29 -- ok
> tda1004x: setting up plls for 48MHz sampling clock
> tda1004x: found firmware revision 29 -- ok
> 
> 
> The problem came from the initial scan file fr-Vannes. I tested all the 
> files for France with this script:
> 
> #! /bin/bash
> for t in /usr/share/doc/dvb-utils/examples/scan/dvb-t/fr-*; do
>     /usr/bin/scan $t
> done
> 
> And, I found two frequencies which run :
> - fr-Orleans : 674166000
> - fr-Toulouse : 698167000
> 
> There are two problems in the file fr-Vannes, the frequency can be 
> shifted of 166000 or 167000 and especially the value of the 
> "guard-interval" must be "1/32" and not "1/8".
> 
> I will search which is best shift 166000 or 167000, and I will post the 
> good file.
> 
> 
> Regards.

So indeed a problem with the scan file parameters too.
166666 and 166667 are common tuner step sizes anyway.

There are patches for the remote on the video4linux-list.

Thanks,
Hermann





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