[mythtv-users] BTTV errors

[Tom Walsh]

steve at nexusuk.org wrote:

>I posted this a while ago and didn't get many reples, so I'll try again 
>and see if anyone has any ideas. :)
>
>I'm running Linux 2.4.24 with the ck1 patch (preempt / lowlatency) and 
>BTTV 0.9.12.  I keep getting errors like:
>
>Feb  3 12:00:04 myth kernel: bttv0: SCERR @ 0d8a7014,bits: HSYNC OFLOW 
>SCERR*
>Feb  3 14:40:04 myth kernel: bttv0: SCERR @ 0d8a7014,bits: HSYNC OFLOW 
>SCERR*
>
>And the hue of the video gets shifted a bit so everything looks a little 
>too green.  This only ever happens right when Myth starts recording (never 
>part way through a show), and the next time Myth changes channel it seems 
>to correct itself, and it doesn't always happen.  Other than the colours 
>being wrong, the video is absolutely fine.
>
>I originally associated the problem with LIRC turning off all the 
>interrupts while sending the IR signals to my decoder (so causing the bttv 
>driver to lose interrupts), but I recently hacked my lirc driver so it 
>nolonger disables interrupts and this problem is still happening.
>
>Has anyone got any ideas what it might be?  Is there actually a BTTV 
>mailing list anywhere (I've not been able to find one so far)?
>  
>

Yes, there is a bttv mailing list, that is where you should be asking 
about this, IMO.  Personally, I had huge problems getting bttv-0.9.12 to 
work for me.  I eventually discovered that the stock Mandrake 9.2 kernel 
already has the bttv 0.7 stuff already in it, I just used that stuff and 
all works well.  I haven't attempted to move the bt878 card over to the 
mythtv box yet, so I cannot comment on that.

As to the bttv mailing list, it appears to be a well kept secret, but 
you can subscribe at:  
http://www.redhat.com/mailman/listinfo/video4linux-list


TomW



-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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