I just upgraded to XFree86 3.3.2, hoping that the noise problems with my ATI [EMAIL PROTECTED] (4MB, AGP) would be fixed. (The noise appears as a evenly scattered white and black pixels to the left of a window, whenever its contents is changed/updated.) The problem wasn't gone, but I found this comment in the Known Problems section of lib\x11\doc\README.Mach64):
o With high refresh rates on certain cards (VT-A3 and CT-D) noise can become a problem in 32bpp mode. This usually only happens with refresh rates of 85Hz or greater and can be fixed by using a lower refresh rate (e.g., 72Hz or 75Hz). I decided to try out different display modes, to see if the noise still appeared. These are the results (Y marks that noise appears, N no noise, and n/a that I couldn't test the mode due 4MB limit): Resoultion Hsync/Vsync/pixelclock 8bpp 16bpp 24bpp 32bpp 640x480 44KHz/85Hz /36.00 N N Y Y 800x600 53KHz/84Hz /56.25 N Y Y Y 1024x768 60KHz/75Hz /78.85 N Y Y Y 1280x1024 (not sure) /108.00 Y Y n/a n/a Seems like it appears even with 16bpps, even with refresh rates less than 75Hz. I tried the "no_block_write" option, but that made no difference. There is no noise at all in Windows 95. Has anyone else experienced anything like this? Any specific reason why it appears? Is there a fix or work-around? Oskar Liljeblad ([EMAIL PROTECTED]) -- E-mail the word "unsubscribe" to [EMAIL PROTECTED] TO UNSUBSCRIBE FROM THIS MAILING LIST. Trouble? E-mail to [EMAIL PROTECTED]