On Wednesday 06 October 2010 22:29:35 Antti Palosaari wrote: > On 10/06/2010 11:36 PM, dave cunningham wrote: > > In message <4CACD0F3.6030203@xxxxxx>, Antti Palosaari wrote > > > >> It is QT1010 tuner driver issue. None is working for that currently or > >> in near future. Feel free to fix :] > > > > The wiki appears to show this stick as working. > > <http://linuxtv.org/wiki/index.php/Afatech_AF9015>. > > > > Is this information incorrect or is it hit and miss depending on the > > host system? > > It "works" but performance is poor. Usually it locks when RF signal is > weak. If you fix bug around line 381 in qt1010.c it will work much > better. But if you fix that it will break devices zl10353+qt1010 since > zl10353 driver misses AGC configuration. > > Antti Antti, I took a look at qt1010.c, but didn't see what the bug was. I was hoping to see a FIXME or BUG or some comment; any comment ;-) But then I went back to my traces. They said my AF9015 detected an MT2060 tuner, not a QT1010. Does this mean the QT1010 comment was wrong? The detection code that said so looks to be part of the AF9015/9013 support, maybe they use the same code. Whatever, you will know, and I certainly don't. The tuner code certainly uses the QT1010 driver and not the MT2060 driver, if I understood the traces correctly. FWIW, I think you are right about AGC; when Kaffeine scans for channels, it gives a few fleeting signal levels about 50% but fails to identify anything. My previous DVB-T stick, different older chip, produced 100% signal solidly, and Kaffeine identified more than 80 channels. I think this bug renders the AF9015 in this configuration virtually useless in Linux; the signal is enough for the Windoze tuner bloatware supplied with it to find all the channels, but not a thing in Linux. Sorry for coming back on this so much later; I've been busy doing house repair. Also, I stopped following the mailing list - I was getting swamped with stuff and it seems to make yahoo break KDE PIM. If I should post this via the list, please say, and I'll start obeying the rules! Thanks in advance for any guidance. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
