I hope someone can give me anyther ideas on what to try with this card, which quite frankly is really starting to wind me up...<br><br>I have a hauppauge NovaT-500 dual DVB-T tuner, which until the last few weeks has been rock solid for the l2 to 3 years with no EIT scanning, and 2 virtual tuners per physical on Freeview in the UK. I am running Mythbuntu 10.10 and Mythtv 0.24. The hardware is a Gigabyte MA770 mainboard with a Athlon X64 3600, 1GB of ram, and 2 x 1.5TB disks each with about 40% free space.<br>
<br>About the middle to the end of January I started getting the "classic" i2C read errors on the card. <br>I did have an hardware problem, which resulted in a swap of the graphics card for a Nvidia Geforce 210. There were no other hardware issues, and the OS was not reinstalled or reconfigured in any way.<br>
<br>I have been though the Mythtv and LinuxTV wikis and various mailing lists and followed the standard steps for fixing this issue.<br><br>1. ensured that the LNA is on, USB autosuspend and RC poling are off - my /etc/modprobe.s/options.conf is below<br>
options dvb_usb_dib0700 force_lna_activation=1<br>options usbcore autosuspend=-1<br>options dvb-usb disable_rc_polling=1<br><br>2. I have tried various combinations of having setting long tuning delays on each card together or individually, and having no delays on either or both tuners.<br>
<br>3. I have tried the various combinations of active EIT, on each card individually, together, and off ( I use the XMLTV radio times grabber so do not rely on EIT for data)<br><br>4 . I have flattened the cards, video sources, and channels in the db, and recreated from a full scan.<br>
<br>5. I have verified that the signal strength and quality is good. The main TV is an hitachi 42" with an extremely picky tuner, and that is working great - I have also ran the Mythbox with the antenna feed straight into the Nova-T card, by passing any signal amps etc.<br>
<br>6. I have tried with the number of simultaneous recordings set to 1 and 2 on each and both tuners.<br><br>When the tuners work as they should the picture and signal are rock solid and stable.<br><br>Does anyone have any suggestions on what to try next? Sod the WAF, this is starting to make me lose faith with Myth.....<br>
<br>I have seen suggestions about replacing the NULL entries in the database with manually entered ones, but have not managed to identify what settings need changing and what to. <br>I then came across a post from Michael Dean, who stated that manually inserting into the DB is a bad thing, and the recommendation in that post was to delete all and start again.<br>
<br>Could it be that the card is getting to the end of a useful life, and simply needs replacing?<br>In which case does anyone have any recommendations for a pci or pci express freeview tuner which is supported/working with mythtv in the UK - Ohj and it has to be half height or it won't fit! I don't want to go back down the route of seperate USB tuners if I can get away with it, cos the mainboard is flaky when transferring plenty of data over USB (a known issue with the sb600 chipset I have - not related to my tuner issue), and I just don't want to go back to multiple usb dongles which is what I had when I ran 3 freecom dvb-t sticks.<br>
<br>Thanks<br><br>Gaz<br>