Hello, The combination of the cx22702 and Thompson tuner make for a particularly non-sensitve card. I have similar problems with my Nova-T which is almost identical. Soyeb On Tue, 2005-10-11 at 15:56 +1000, Shirley, David wrote: > Hi All, > > I purchased one of these recently; it has LR6550 written on the back of > it. > > Here is what I know about it, cx2388 chipset, cx22702 remod, Thompson > 7579 tuner - the card it self has RF IN + BYPASS, analogue IN + Svideo > IN, + remote control. > > I have modded cx88-cards.c and some other files to add the PCI ID's and > the card is detected. > > I can also receive a signal and capture picture using dvbstream | > mplayer. > > HOWEVER the problem I have is tzap only gets 0x0031 (+/- 2) for the > signal strength. Also the SNR is usually 0xffff when LOCKED. > > Also when I unplug the antenna or fake a bad signal (ie unplug it a > little bit + wiggle) then the signal actually INCREASES to something > like 0x0050 (always 0x00xx thou) > > Anyway this "low signal strength" causes Mythtv to ignore the card I > think. > > Has anyone got any ideas/experience with this to help me out. > > Linux 2.6.14-rc3 if you are interested. > > Here is the tzap output using latest v4l-kernel + dvb-kernel cvs. > > tzap -c /usr/share/doc/dvb-utils/examples/channels.conf-dvbt-australia > "Ten HD" > using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' > tuning to 219500000 Hz > video pid 0x0202, audio pid 0x0000 > status 00 | signal 0030 | snr 8000 | ber 00003fff | unc 00000000 | > status 1f | signal 0030 | snr ffff | ber 00000000 | unc 00000000 | > FE_HAS_LOCK > status 1f | signal 0030 | snr ffff | ber 00000000 | unc 00000000 | > FE_HAS_LOCK > status 1f | signal 0030 | snr ffff | ber 00000000 | unc 00000000 | > FE_HAS_LOCK > > As you can see from below, Michael Krufky has added this card into the > cx88-cards.c in CVS. > > Cheers > Dave > > > > -----Original Message----- > From: Michael Krufky [mailto:mkrufky@xxxxxxxxxxx] > Sent: Tuesday, 11 October 2005 3:34 PM > To: Linux and Kernel Video > Cc: Shirley, David > Subject: Re: Leadtek WinFast DTV1000-T > > Shirley, David wrote: > > Hi Michael, > > > > Sure thing, first here is my tzap: > [snip] > > Here is the patch: > > Thank you. I have added your patch into v4l-kernel cvs. "WinFast > DTV1000-T" is now cx88 card #35. Please grab and install a copy of > v4l-kernel cvs and confirm that it works properly. > > http://linuxtv.org/v4lwiki/index.php/How_to_build_from_CVS > > If you have any more patches to submit, please work from v4l-kernel cvs. > > About the bug that you are reporting about signal strength / snr > etc..... The linuxdvb mailing list (subscriber-only: > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb) is more > appropriate place to ask about it. It might be a good idea for you to > try using the cx22702 frontend driver in dvb-kernel cvs before writing > to that list. You can get combined cvs trees installed using most > recent v4l cx88 driver + most recent dvb cx22702 driver by using the > merge-trees make option, explained in the HOWTO above. > > Good Luck, > Michael Krufky > > _______________________________________________ > > linux-dvb@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
