On Sun, Dec 6, 2009 at 6:59 PM, Christopher Kerr <span dir="ltr"><<a href="mailto:mythtv@theseekerr.com">mythtv@theseekerr.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi everyone,<br><br>I bought a Leadtek USB Dongle Gold last week to use as a second tuner. Got it up and running easily enough, and it was all looking promising - PIP was working fine, and the first simultaneous test recordings worked perfectly.<br>
<br>And then I tried again later, and it didn't work at all.<br><br>Cue a day of me uninstalling, reinstalling, shuffling out other USB peripherals, retuning, etc, etc.<br><br>The short version is that it works, but sometimes it tunes very slowly. As in, 10's of minutes. I had a 30 minute program fail entirely yesterday because it never sucessfully tuned. Other times, it will work perfectly.<br>
<br>The only related symptom is that I have 3 channels (all on the same multiplex, 9 Networks) which I can't tune on either tuner - apparently they use some non-standard offset. Anyhow, when the new tuner is in its "I don't want to tune just yet" mode, failing entirely until suddenly it works, it will NEARLY tune these "broken" channels, getting to "LMs".<br>
<br>Oh, and the tuner works perfectly under Windows XP, including the "broken" channels.<br><br>Does anyone know where to start in tracking this one down?<br><br>Thanks,<br>- Chris<br>
</blockquote></div><br>Just had a look at the dmesg output - it's not exactly pretty, it appears that the driver is having some fundamental difficulty co-ordinating communication between the DVB chip and the tuner chip:<br>
<br>[ 7046.253159] tda18271_read_regs: ERROR: i2c_transfer returned: -1<br>[ 8026.463184] af9015: recv bulk message failed:-71<br>[ 8026.463426] af9015: recv bulk message failed:-75<br>[ 8026.463430] af9013: I2C read failed reg:d417<br>
[ 8026.463435] tda18271_read_regs: ERROR: i2c_transfer returned: -1<br>[ 8026.463439] tda18271_ir_cal_init: error -1 on line 786<br>[ 8026.463443] tda18271_init: error -1 on line 810<br>[ 8026.463446] tda18271_tune: error -1 on line 867<br>
[ 8026.463450] tda18271_set_params: error -1 on line 948<br>[ 8596.179360] af9015: recv bulk message failed:-71<br>[ 8596.179601] af9015: recv bulk message failed:-75<br>[ 8596.179605] af9013: I2C read failed reg:d417<br>
[ 8596.179610] tda18271_read_regs: ERROR: i2c_transfer returned: -1<br>[ 8596.179614] tda18271_ir_cal_init: error -1 on line 786<br><br>etc.<br><br>- Chris<br>