In that case, you'd want cpudyn as the frequency scaler, since it has very low latency between switches as compared to powernowd - even when you get powernowd working. Just install cpudyn from the repos and see. A couple of guys who do audio editing etc tried it and it works very well. It saves about 10 watts of power when idle and shouldn't affect your operations. Check it out. Cpudyn is ideal for non-smp boxes, although it works to a fashion with multiple cpu's.
I think you may be confusing color depth with hardware specs - in this case it is because our lower-cost flat panels really only have 6-bit hardware, as compared to the higher quality ones that do 8-bit - again nothing to do with color depth. If you are running an nvidia card, you can force that option which is normally off (from the nv man-page)The only thing that is really bothering me is that the LCD displays 16bit colors when set to 24bit. I know it has something to do with this screen only having 6 bits per pixel.
I don't think this applies to super displays like the Apple Cinema displays with 8-bits, but for our iMacs, we are down in the 6-bit area. And, I don't think the opensource ati driver can do this. It does make a difference, even on my non-ppc boxes that have nvidia cards. But this is a hardware spec, and not a color-depth issue.Option "FPDither" "boolean"
Many digital flat panels (particularly ones on laptops) have only 6 bits per component color resolution. This option tells the driver to dither from 8 bits per component to 6 before the flat panel truncates it. Default: off.
Getting back to color-depth, it is strange that your machine doesn't seem to want to do 24-bit color depth. How did you determine that? Oh, one last check - does your screen-resolution gui show 1680x1050 at 60hz?
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