When using the radeonhd driver on my Thinkpad T60p with an ATI X1400 (Fedora 8), I see slight visual noise across the entire screen. It's hardly noticeable from a distance, but when you look at large solid-color areas, or at anything close-up, it is clearly visible. It's difficult to describe, and I can't take a screenshot since it's happening on display. The best I can describe it is that it looks like slight JPEG compression noise, or like a color dithering (though the display is set to "Millions of Colors"). I've attached a faked image from the gimp that uses a "noise" filter to attempt to give an idea of what it looks like on a solid grey background. If I use the fglrx driver or the vesa driver, I do not see this noise.
Created attachment 13196 [details] Artists rendition of screen-noise
Steven, would you please supply a log file?
Looks like 18bit panel spacial dithering. Some people like it, some don't. This will be configurable in the future (if it is this issue).
Try our git version of the driver. This should already improve things for you. I will add configuration of which dithering is used in time, as i have more pressing issues at the moment. Report back with a recent version of the driver.
Tried the latest git version and it looks great (just like fglrx and vesa, as far as I can tell). Marking as FIXED - thanks.
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