[linux-dvb] FusionHDTV3 Gold-Q : RF input selection, analog audio only in left speaker

Michael Krufky mkrufky at m1k.net
Thu Jul 28 18:50:21 CEST 2005


Mac Michaels wrote:

>On Thursday 28 July 2005 02:33 am, Todd Ignasiak wrote:
>  
>
>>I have been using a FusionHDTV3 QAM in my HTPC for a
>>while now.  
>>    
>>
>There is a very recent change (Linux 2.6.12 maybe and CVS) 
>that affects only the  FusionHDTV 3. The RF connector is 
>automatically switched between the ANT and CABLE connectors 
>for digital TV signals just like the DViCO supplied Windows 
>driver does. Older versions of the driver did not switch 
>the RF connector for digital signals. The ANT connector was 
>used for both OTA and Cable digital signals. Analog TV does 
>not automatically switch and is not affected by this 
>update.
>
This change is in the mainline kernel as of 2.6.13-rc3-git9 ...

If analog TV doesn't switch automatically, then it means that there is 
something wrong in cx88-cards.c

Mac-

While you're at it, please take a look at the GPIO values for 
FusionHDTV3 Gold-T and FusionHDTV5 Gold.... I copied these from 
FusionHDTV Gold-Q, and everything seems to be correct... Only problem in 
analog mode is that I can only hear audio coming from the left speaker.  
I tried with an old analog bttv card, and I hear full stereo from both.  
Mauro suggested fixing up the GPIO values, but I don't know how.  Can 
anybody explain this to me?

>>It worked fine with my QAM cable setup. 
>>    
>>
>I saw a report the the isolation between the two connectors 
>on the FusionHDTV 3 is less than ideal. A user reported 
>inability to receive some weak OTA channels when Cable was 
>connected at the same time.
>  
>
>>Now, I added an HD3000 card, which appears to use the
>>same cx88 drivers, but with an Oren demodulator.
>>    
>>
>How are you connecting the RF cable? If you have not already 
>tried it by moving the original RF cable from one card to 
>the other, test it that way. I had the center wire in the 
>cable get bent and miss the whole in the RF connector 
>shorting out the signal. This was right after I had handled 
>my FusionHDTV 3. I was afraid I had zapped something, but 
>straightening out the cable wire fixed everything.
>
-- 
Michael Krufky






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