[linux-dvb] Tuning probs qt1010/AF9005/Linux + XP driver for AF9005 qt1010

Antti Palosaari crope at iki.fi
Sun Jan 11 18:15:41 CET 2009

Evan Nando wrote:
> Hi everyone,
> I have the qt1010 based AF9005 and find it has VERY unreliable tuning in 
> Linux. It just fails to lock onto channels, even after it has 
> successfully scanned them The problem does not exist at all in WindowsXP 
> using BlazeDVT. What I've discovered is the *XP driver* supplied on CD 
> with the AF9005 usb stick works very well with it, whereas other drivers 
> I've downloaded from the afatech website give poor tuning (giving less 
> bars in Signal Strength).
Current Linux qt1010 driver seems to perform better when signal is weak. 
With strong signals it does not lock very reliable.

> I did note on the LinuxTV/dvb-tv forums that others were having the same 
> problem, probably because of the qt1010 tuning (very choppy in Linux, 
> fine in Windows). There are no tweaks available as per the mt2060.
> The driver that works very well with XP has been uploaded to 
> http://www.megaupload.com/?d=LU1E55EN (716kb)
Thanks. I will try to disasm it to see what is differently.

> Would anyone be willing to extract the firmware from it for use in 
> Linux? This would be specific qt1010 firmware. I've tried using usbsnoop 
> and various filters to try to replay the USB sequence and have not 
> gotten anywhere.
There is no firmware download needed by the qt1010.

> Any other tips on Linux qt1010/AF9005 tuning would be much appreciated. 
> I am hopeful the qt1010 specific firmware will give better results with 
> Linux. Would not need to boot into XP anymore to watch TV:)
You should wait a little. I am doing some work here slowly...


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