On Fri, 11 May 2001, Chris Schaefer wrote:
> I've been trying to get a Micro DC10 ( zoran ) based card to
> do full size overlay and it appears to have some serious performance problems
> on one of my machines. Basically it won't do full size, but if you
> shrink down to like 120X120, then it will ( though still not at full
> framerates ). On another computer, I'm not having this problem at all.
> I'm thinking it's some interaction with the PCI bridge chis sets, but I
> really have no idea where to start. Does anyone have any ideas?
cat /proc/pci
Bus 0, device 14, function 0:
Multimedia video controller: Zoran ZR36057 (rev 2).
Fast devsel. IRQ 15. Master Capable. Latency=96. Min Gnt=2.Max Lat=16.
Non-prefetchable 32 bit memory at 0xe4002000 [0xe4002000].
What is the latency set to for your card? Mine will be set to 32 by default,
which is too low, and I can't play back at 640x480. Change the value with
setpci:
setpci -s 00:0e.0 0x0d.B=0x60
Replace the the 00:0e with the bus and device number of your card.
