Sottek, Matthew J ([EMAIL PROTECTED]): > > Also, an annoyance. I see alot of thin little green horizontal > > lines that flicker all over the overlay surface. Any thoughts as to > > what those might be, or any reason they might be happening? I > > suspect it's some hardware defect and I should go buy another video > > card. If you like I can try to describe them in more detail, but > > it's basically about maybe 30 little single pixel high 20 pixel wide > > green lines that appear randomly about the scaled image. > > I have never heard of such a problem. What resolution/depth/refresh > are you running at? Perhaps this happens when there isn't sufficient > memory bandwidth? Like maybe 1280x1024@85hz?
I was running at 1024x768, 24bpp, 85hz. I get bad with everything if I do 1280x1024, 24bpp (weird wavey vertical lines). The display looks like garbage. I was getting not as many green little lines when running at 1280x1024, 16bpp, 85hz. I wouldn't want to go below 1024x768, since I'd be scaling video down. Can you speak for the quality of video 24bpp vs 16bpp? Will it make a difference if I'm using an overlay? > It could also be a bad watermark chosen for the mode. In Linux we have > to use a pixel clock based lookup to get a watermark which isn't > always the best choice for the mode. Other operating systems have a > specific watermark for a specific mode, but of course that only works > when the driver generates the list of available timings. > > In the back of the PRM (Programmers reference manual) there is a list > of modes and the watermarks for those modes. You might compare X's > calculated watermark (It's in the log) against the recommended value > in the PRM. If they are different you could replace the value in the > code with the recommended value to see if your problems go away. I'll look into this tonight, thanks. -- Billy Biggs [EMAIL PROTECTED] _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
