On Mon, Jun 12, 2006 at 02:43:34PM +0200, Soeren Sonnenburg wrote: > when I look at the output of xrandr I see negative refresh rates not > only confusing me but also e.g. gnome-display-properties (i.e. I can > no longer change resolutions on the fly with that tool) This is a known issue with MergedFB, since there is no good way to express one refresh rate for two displays which almost certainly have differing refresh rates. > Section "Device" > Identifier "ATI Radeon Internal" > Driver "radeon" > BusID "PCI:0:16:0" > Option "UseFBDev" "false" IIRC this is the default. > Option "AllowGLXWithComposite" "true" This option is only useful with the nvidia driver. > Option "AccelMethod" "xaa" This option is also the default. > Option "backingstore" "true" This option will not help your performance. > Option "EnablePageFlip" "true" This option is highly problematic. > Option "AGPMode" "4" This option is almost certainly unnecessary. > Option "AGPFastWrite" "true" This option could well kill your machine. > Option "MonitorLayout" "LVDS,TMDS" This option is almost certainly unnecessary, unless you really need to force it when you don't have a second monitor. > Option "PanelSize" "1280x854" This option is almost certainly unnecessary. > Screen 0 > EndSection > > Section "Device" > Identifier "ATI Radeon External" > [... more insanity ...] > Screen 1 > EndSection You don't need to have separate Device sections for MergedFB: that's the entire point behind it.
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