Kevin Liao wrote: > Hi, > > I am using a video capture card with four BT878A and one INTEL PCI bridge on > it. Each video input channel is connected to one BT878A respectively. I am > trying to capture video data from all four channels and compress them to > JPEG files at the same time. But sometimes I will get some annoying line > noise (as indicated by red circle in the attached file). Does anyone know > it's hardware's or software's issue? Is there anyway to avoid this? Thanks! > > Regards, > Kevin > > > ------------------------------------------------------------------------ > This is a PCI problem. The Bt878's are not getting PCI bus access quickly enough, and are dropping data. You can try playing with the PCI bus latency settings in the bios, or through the module options of later versions of bttv. -justin