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 Mythbuntu Bug Team, which is subscribed to Mythbuntu. https://bugs.launchpad.net/bugs/683118 Title: i2c errors with af9015 / tda18271 (V4L DVB) Status in Mythbuntu, Ubuntu derivative focused upon MythTV: New Status in “linux” package in Ubuntu: New Bug description: [67192.619144] dvb-usb: error -1 while querying for an remote control event. [67344.625825] af9015: recv bulk message failed:-71 [67344.628207] tda18271_read_regs: [6-00c0|M] ERROR: i2c_transfer returned: -1 [67344.628214] tda18271_ir_cal_init: [6-00c0|M] error -1 on line 811 [67344.628218] tda18271_init: [6-00c0|M] error -1 on line 835 [67344.628221] tda18271_tune: [6-00c0|M] error -1 on line 908 [67344.628224] tda18271_set_params: [6-00c0|M] error -1 on line 989 [67808.766960] af9015: recv bulk message failed:-71 [67808.769138] tda18271_read_regs: [3-00c0|M] ERROR: i2c_transfer returned: -1 [67808.769145] tda18271_ir_cal_init: [3-00c0|M] error -1 on line 811 [67808.769148] tda18271_init: [3-00c0|M] error -1 on line 835 [67808.769152] tda18271_tune: [3-00c0|M] error -1 on line 908 [67808.769155] tda18271_set_params: [3-00c0|M] error -1 on line 989 [67915.647853] af9015: recv bulk message failed:-71 [67915.650215] tda18271_read_regs: [6-00c0|M] ERROR: i2c_transfer returned: -1 [67915.650222] tda18271_ir_cal_init: [6-00c0|M] error -1 on line 811 [67915.650226] tda18271_init: [6-00c0|M] error -1 on line 835 [67915.650229] tda18271_tune: [6-00c0|M] error -1 on line 908 [67915.650232] tda18271_set_params: [6-00c0|M] error -1 on line 989 [68229.757124] af9015: recv bulk message failed:-71 [68229.759358] tda18271_read_regs: [6-00c0|M] ERROR: i2c_transfer returned: -1 [68229.759367] tda18271_ir_cal_init: [6-00c0|M] error -1 on line 811 [68229.759370] tda18271_init: [6-00c0|M] error -1 on line 835 [68229.759374] tda18271_tune: [6-00c0|M] error -1 on line 908 [68229.759377] tda18271_set_params: [6-00c0|M] error -1 on line 989 [68592.432905] af9015: recv bulk message failed:-71 [68592.435400] tda18271_read_regs: [6-00c0|M] ERROR: i2c_transfer returned: -1 [68592.435409] tda18271_ir_cal_init: [6-00c0|M] error -1 on line 811 [68592.435413] tda18271_init: [6-00c0|M] error -1 on line 835 [68592.435416] tda18271_tune: [6-00c0|M] error -1 on line 908 [68592.435420] tda18271_set_params: [6-00c0|M] error -1 on line 989 [68958.121675] af9015: recv bulk message failed:-71 [68958.123910] tda18271_read_regs: [6-00c0|M] ERROR: i2c_transfer returned: -1 [69195.715584] af9015: recv bulk message failed:-71 [69195.717821] tda18271_read_regs: [3-00c0|M] ERROR: i2c_transfer returned: -1 [69195.717829] tda18271_ir_cal_init: [3-00c0|M] error -1 on line 811 [69195.717832] tda18271_init: [3-00c0|M] error -1 on line 835 [69195.717835] tda18271_tune: [3-00c0|M] error -1 on line 908 [69195.717839] tda18271_set_params: [3-00c0|M] error -1 on line 989 [69269.512951] af9015: recv bulk message failed:-71 [69269.515414] tda18271_read_regs: [6-00c0|M] ERROR: i2c_transfer returned: -1 [69278.492850] af9015: recv bulk message failed:-71 [69278.495208] tda18271_read_regs: [6-00c0|M] ERROR: i2c_transfer returned: -1 [69636.913676] af9015: recv bulk message failed:-71 [69636.916050] tda18271_read_regs: [6-00c0|M] ERROR: i2c_transfer returned: -1 [69664.747454] af9015: recv bulk message failed:-71 [69664.749801] tda18271_read_regs: [3-00c0|M] ERROR: i2c_transfer returned: -1 [69664.749809] tda18271_ir_cal_init: [3-00c0|M] error -1 on line 811 [69664.749813] tda18271_init: [3-00c0|M] error -1 on line 835 [69664.749816] tda18271_tune: [3-00c0|M] error -1 on line 908 [69664.749819] tda18271_set_params: [3-00c0|M] error -1 on line 989 [69788.957358] af9015: recv bulk message failed:-71 [69788.959730] tda18271_read_regs: [3-00c0|M] ERROR: i2c_transfer returned: -1 [69788.959740] tda18271_ir_cal_init: [3-00c0|M] error -1 on line 811 [69788.959744] tda18271_init: [3-00c0|M] error -1 on line 835 [69788.959747] tda18271_tune: [3-00c0|M] error -1 on line 908 [69788.959751] tda18271_set_params: [3-00c0|M] error -1 on line 989 [70244.077358] af9015: recv bulk message failed:-71 [70244.079729] tda18271_read_regs: [3-00c0|M] ERROR: i2c_transfer returned: -1 [70244.079737] tda18271_ir_cal_init: [3-00c0|M] error -1 on line 811 [70244.079741] tda18271_init: [3-00c0|M] error -1 on line 835 [70244.079744] tda18271_tune: [3-00c0|M] error -1 on line 908 [70244.079747] tda18271_set_params: [3-00c0|M] error -1 on line 989 [70595.736274] af9015: recv bulk message failed:-71 [70595.738631] tda18271_read_regs: [6-00c0|M] ERROR: i2c_transfer returned: -1 [70595.738638] tda18271_ir_cal_init: [6-00c0|M] error -1 on line 811 [70595.738641] tda18271_init: [6-00c0|M] error -1 on line 835 [70595.738644] tda18271_tune: [6-00c0|M] error -1 on line 908 [70595.738648] tda18271_set_params: [6-00c0|M] error -1 on line 989 [70916.836463] af9015: recv bulk message failed:-71 [70916.838857] tda18271_read_regs: [3-00c0|M] ERROR: i2c_transfer returned: -1 [70916.838865] tda18271_ir_cal_init: [3-00c0|M] error -1 on line 811 [70916.838869] tda18271_init: [3-00c0|M] error -1 on line 835 [70916.838872] tda18271_tune: [3-00c0|M] error -1 on line 908 [70916.838875] tda18271_set_params: [3-00c0|M] error -1 on line 989 [71094.558923] af9015: recv bulk message failed:-71 [71094.558935] af9015: af9015_rc_query: failed:-1 [71094.558938] dvb-usb: error -1 while querying for an remote control event. [72213.786929] af9015: recv bulk message failed:-71 [72213.789283] tda18271_read_regs: [3-00c0|M] ERROR: i2c_transfer returned: -1 [72213.789290] tda18271_ir_cal_init: [3-00c0|M] error -1 on line 811 [72213.789294] tda18271_init: [3-00c0|M] error -1 on line 835 [72213.789297] tda18271_tune: [3-00c0|M] error -1 on line 908 [72213.789300] tda18271_set_params: [3-00c0|M] error -1 on line 989 [72522.158741] af9015: recv bulk message failed:-71 [72522.158755] af9015: af9015_rc_query: failed:-1 [72522.158758] dvb-usb: error -1 while querying for an remote control event. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: linux-image-2.6.37-7-generic 2.6.37-7.18 Regression: Yes ProcVersionSignature: Ubuntu 2.6.37-7.18-generic 2.6.37-rc3 Uname: Linux 2.6.37-7-generic x86_64 Architecture: amd64 Date: Tue Nov 30 15:45:36 2010 InstallationMedia: Mythbuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) ProcEnviron: PATH=(custom, no user) LANG=fi_FI.UTF-8 SHELL=/bin/bash SourcePackage: linux _______________________________________________ Mailing list: https://launchpad.net/~mythbuntu-bugs Post to : [email protected] Unsubscribe : https://launchpad.net/~mythbuntu-bugs More help : https://help.launchpad.net/ListHelp

