[vox-tech] BTTV Problems with multiple cards

[Mark Street]

I built one of these earlier this year.

A quick search of your error matches something similar in the Linux kernel 
archive..
http://www.uwsg.iu.edu/hypermail/linux/kernel/0402.0/1410.html

I found that card placement in the PCI slots made the difference for me, 
although all I had in the system at the time was an AGP graphics card.

We don't know what hardware you are using or the Linux distro.

I am using an ASUS P4P800 Deluxe mobo with 5 PCI slots with alsa and the ivtv 
drivers.

Here is my lspci -v

02:0a.0 Multimedia video controller: Internext Compression Inc iTVC15 MPEG-2 
Encoder (rev 01)
        Subsystem: Hauppauge computer works Inc. WinTV PVR-250
        Flags: bus master, medium devsel, latency 64, IRQ 22
        Memory at d8000000 (32-bit, prefetchable) [size=64M]
        Capabilities: [44] Power Management version 2

If the card is out of sync and has interlacing problems you may need to tune 
your modules.  What does your modules.conf look like?  What 
parameters/options are you passing when you load the kernel modules for the 
cards manually?  I think I still have my notes and references around here 
somewhere... .shuffle papers....

I would follow the other Mark's advice and start with 1 card, get it working, 
then add the additional cards.

On Sunday 11 July 2004 15:46, Hans W. Uhlig wrote:
> I purchased not long ago a new machine to function as
> a mythtivo and finished assembling it this weekend,
> sadly when I dropped in the three bt878a capture cards
> the unit just decides to spit out a greenscreen/static
> across the bus. If I rip out any 2 of the cards
> leaving just one it works fine.
>
> All three Cards are identical, and to note if I change
> the tuner=x setting when insmoding/modprobing it will
> sometimes show partial channels, such as one that
> looks like its off frequency, badly interlaced and out
> of sync, pal mode gives me a similer output but on a
> different channel.
>
> Card is a bt878a with a Phillips FM1236 tuner.
>
> Also one other thing to note is while running on one
> card only it spits out these messages periodically
>
> bttv0: timeout: drop=64 irq=97874/97876,
> risc=1490e07c, bits: HSYNC OFLOW FDSR
> bttv0: reset, reinitialize
>
> Any help would be appreciated greatly
>
> Hans W. Uhlig
> OE Technician
> Staples 0718
> Woodland, Ca
>
> =====
> Hans W. Uhlig
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Mark Street, RHCE
http://www.oswizards.com
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