<snip>
I get this I2C messages: # tail -f /var/log/messages Oct 5 20:16:44 htpc kernel: [ 534.168957] af9013: I2C read failed reg:d330 Oct 5 20:16:49 htpc kernel: [ 538.626152] af9013: I2C read failed reg:d330 Oct 5 21:22:15 htpc kernel: [ 4464.930734] af9013: I2C write failed reg:d2e2 len:1 Oct 5 21:40:46 htpc kernel: [ 5576.241897] af9013: I2C read failed reg:d2e6 Oct 5 23:07:33 htpc kernel: [10782.852522] af9013: I2C read failed reg:d2e6 Oct 5 23:20:11 htpc kernel: [11540.824515] af9013: I2C read failed reg:d07c Oct 6 00:11:41 htpc kernel: [14631.122384] af9013: I2C read failed reg:d2e6 Oct 6 00:26:13 htpc kernel: [15502.900549] af9013: I2C read failed reg:d2e6 Oct 6 00:39:58 htpc kernel: [16328.273015] af9013: I2C read failed reg:d330
I have two af9013 sticks in my mythtv backend. One is a KWorld 399U, the other a single tuner Tevion stick.
When I originally setup this system I had major problems with these sticks and also a pair of Freecom WT-220U (which worked perfectly in an older system - I've since disposed of these).
I was seeing I2C read fails similar to the above. The system in question has an AMD760G southbridge.After a lot of googling I came across a post somewhere which said that the USB host controller on the 760G is problematic and suggested getting a NEC or VIA hub and using this between the DVB sticks and the root hub.
I bought a cheap hub with an NEC chip on and since then (6 months maybe) I've had no problems with the system. Having said this I probably don't use all three frontends that often (I also have a DVB-S card and this takes precedence) though I certainly have on occasion and don't recall any problems.
-- Dave Cunningham PGP KEY ID: 0xA78636DC
Attachment:
signature.asc
Description: PGP signature
