On Mon, 10 Jun 2002, Dirk [ISO-8859-1] St�ffler wrote: > Dr Andrew C Aitchison wrote: > >Ah. I've always used 24bpp. > > > >I've been using "DacSpeed 230" on my i815 for a couple of years. > > > I gave this a thought and decided that DacSpeed 160, no more is needed > here, couldn't possibly do any harm. Well, whoever put these defaults in > with the driver knew what he was doing: I get such a horrible flicker > all over the screen when I move or scroll something I couldn't believe > it. I went so far as to boot up my old Windows because I started > becoming suspicious about my hardware: same settings, everything's fine. > > The default dacspeeds are 163 for 16bpp and 136 for 24bpp!
Note that the default speeds are the same for all chipsets; I wouldn't be suprised if different chipsets have different dac speed limits. However I suspect that the real issue is the speed of the memory; since we are using system memory the video BIOS can't really tell us how fast we can go, although the system BIOS might be able to. -- Dr. Andrew C. Aitchison Computer Officer, DPMMS, Cambridge [EMAIL PROTECTED] http://www.dpmms.cam.ac.uk/~werdna _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
