[linux-dvb] Re: udev problem with ASUSTeK P7131 Dual
frederic at juliana-multimedia.com
Fri Oct 27 18:01:35 CEST 2006
hermann pitton wrote:
> Am Dienstag, den 24.10.2006, 19:55 +0200 schrieb Frédéric Massot:
> dunno, saa7134-dvb and saa7134-alsa seems to be loaded manually or by
> options in /etc/modprobe.conf or similar, but you use a very recent
> version of udev and maybe it is related to, that your subsystem
> 1043:4876 of the new card variant is not known yet.
> Anyway, you might try to
> "hg clone http://linuxtv.org/hg/~hhackmann/v4l-dvb"
> with mercurial installed or to download a gz/bz2 snapshot from Hartmut's
> tip of the tree and use it. (dvb-fe-tda10046.fw)
> This quite different card with new layout and missing firmware eeprom is
> in the auto detection there and you need it for testing DVB-T, after you
> have downloaded recent firmware, preferably from LifeView, with the
> get_dvb_firmware script and put it in the appropriate directory for
> Since you seem to be in France, you should set the secam=L option for
> saa7134 ("modinfo saa7134") for analog television and/or force SECAM-L
> with a TV application like xawtv.
> There is another pitfall in France for DVB-T.
> You very likely will have to add a positive offset of 167000Hz to each
> channel in the initial scan file of your transmitter, else the frontend
> won't lock.
> The current driver tries to switch automatically to the FM/RF antenna
> input when in dvb mode. This works flawlessly for the originally
> supported version of this card. However, for your version we have a
> report, that a radio app needs still to be used once, before the FM/RF
> (dvb-t) antenna input will become active.
> Maybe you can confirm or deny that problem.
Thanks for your answers. :o)
For information, my DVB-T card (subsystem 1043:4876) has these components :
- SAA7131E (chipset)
- TDA10046A (chipset)
- TQ 32.110 (Quartz)
The remote control has this reference : PC-39
When I boot without the IR receptor, I have this dmesg output :
gpio is 0
When I boot with the IR receptor, I have this dmesg output :
gpio is 40000
I rebuilt the kernel (188.8.131.52) with the modules saa7134-dvb and
saa7134-alsa, when they are loaded with modprobe the directory
"/dev/dvb" appears. It is astonishing that they should be loaded with
modprobe so that the directory appears. Is this because it is a version
Then, I downloaded (25/10/2006) the bz2 snapshot from Hartmut's tip and
the firmware (dvb-fe-tda10046.fw) from LifeView. I rebuilt the kernel
(184.108.40.206) without V4L and I build the modules from this snapshot.
The card ASUSTeK P7131 Dual is automatically recognized with number 78,
I connected the internal audio connector of DVB card on the AUX input of
the sound card.
For analog television, I loaded the module tuner with "secam=L", with
XdTV I receives the channel, the image is not very stable and I do not
have a sound. I have an external antenna. Previously with a Pinnacle
PCTV card (BT848) the image was good and I had the sound, with an
external cable between the tuner card and the sound card.
For DVB-T television, I use the fr-Vannes scan file, I had a positif
offset of 167000 Hz in this file. The scan (dvb-utils) command does not
detect any channel. With Kaffeine, the signal bar graph indicates a
signal between 60% and 70%, and Kaffeine does not detect any channel.
I tested your trick with the command fmscan, but I had the error message
I will not be able to continue my tests and save output, I had a problem
with the hard disk of my PC. There are a days when one should not start
his PC. :o|
| FREDERIC MASSOT |
| http://www.juliana-multimedia.com |
| mailto:frederic at juliana-multimedia.com |
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