Hi Soyeb, I think it's more likely to be a problem with the driver not interpreting the response correctly. In any case thanks for you quick reply - I am having a look through the list and am seeing other people with cx22702 having similar problems. I might checkout the doco for cx22702 to see what reg 0x24 is meant to return :) Cheers Dave ---------------------------------------------------------------- David Shirley Firewall Management Team ICT Operations Telstra Corporation Limited Phone: (03) 8661 5977 Mobile: 0417 020 119 Fax: (03) 9639 6818 Email: David.Shirley@xxxxxxxxxxxxxxxx ---------------------------------------------------------------- This communication may contain CONFIDENTIAL or copyright information of Telstra Corporation Limited (ABN 33 051 775 556). If you are not an intended recipient, you MUST NOT keep, forward, copy, use, save or rely on this communication, and any such action is unauthorised and prohibited. If you have received this communication in error, please reply to this e-mail to notify the sender of its incorrect delivery, and then delete both it and your reply. Thank you. > -----Original Message----- > From: Soyeb Aswat [mailto:soyeb@xxxxxxxxxxxxxx] > Sent: Tuesday, 11 October 2005 4:05 PM > To: linux-dvb@xxxxxxxxxxx; Shirley, David > Subject: Re: [linux-dvb] Leadtek WinFast DTV1000-T problems > > 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
