Ivor Cox wrote: > > Further tests indicate that the data for a capture (I am using mmap) is > incomplete and confused by the remains in the buffer of the previous image. > The incompleteness has a pattern which results in the grid I explained - but > the image I get is a mixture of the latest and earlier images. > > If I have not waited correctly for sync or am reading the wrong buffer > (effectively the same!) would I get an effect like this? > > BTW the image I see is undistorted so I am sure the RGB format is correct - > it's just got bits missing in a near-regular pattern. > > Ivor This sounds like the PCI latency effects again. Try playing with the PCI latency timers in your BIOS setup. -justin
