I have the same problem. HW is Leadtek WinFast DTV Dongle Gold running on Ubuntu 10.10 and 2.6.35-27. The tuners used to be quite reliable, so something has changed. The tuners do run ok for a random amount of time (up to 24 hours), but then once the error messages below turn up in syslog the tuners will not work again without being unplugged and replugged. The issue occurs on first tuning the tuner to record a programme (via MythTV). This suggests to me that the issue is perhaps being caused by a poor signal, but the driver is not then reacting to that error correctly, which leaves the tuner in a state which it is unable to recover from. Just conjecture, but I am hoping this helps. Below is an extract of syslog with the relevant messages (these are repeated many multiples of times).
Mar 10 07:46:28 toby kernel: [36083.524716] af9015: recv bulk message failed:-71 Mar 10 07:46:28 toby kernel: [36083.524967] af9015: recv bulk message failed:-75 Mar 10 07:46:28 toby kernel: [36083.524972] af9013: I2C read failed reg:d417 Mar 10 07:46:28 toby kernel: [36083.524975] tda18271_read_regs: [5-00c0|M] ERROR: i2c_transfer returned: -1 Mar 10 07:46:28 toby kernel: [36083.524979] tda18271_ir_cal_init: [5-00c0|M] error -1 on line 812 Mar 10 07:46:28 toby kernel: [36083.524982] tda18271_init: [5-00c0|M] error -1 on line 836 Mar 10 07:46:28 toby kernel: [36083.524985] tda18271_tune: [5-00c0|M] error -1 on line 909 Mar 10 07:46:28 toby kernel: [36083.524988] tda18271_set_params: [5-00c0|M] error -1 on line 990 Mar 10 07:46:28 toby kernel: [36083.525216] af9015: recv bulk message failed:-75 Mar 10 07:46:28 toby kernel: [36083.525220] af9013: I2C write failed reg:d3c0 len:1 Please let me know if I can attach any further output that will assist in solving this issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/683118 Title: i2c errors with af9015 / tda18271 (V4L DVB) -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
