> > David, > > many thanks for your advice. Increasing DacSpeed to 65.00 lets X find > a 1024x768 (60 Hz) mode both in 24 and 16 bit colour depth. I hope the > 0.6% higher DacSpeed outside the specification will not do any harm > to the chip. > > Thanks again for your valuable help > > Martin
The CT65555 driver in 3.3.6 was much more lenient on what clocks it would allow. The 4.x series drivers stick to exactly what is stated in the documentation on the chipsets. Thus if you overclock your chip, you know about it and do it at your own risk. There is no risk in increasing the DacSpeed, as the memory clock stays the same in this case. However, you'll have less memory bandwidth available for other things like acceleration and XVideo. This will be seen as tearing of the screen. So if you don't see tearing, then don't worry... Regards david _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
