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==Speeding up xorg's composite extension== After enabling the composite extension in xorg with Section "Extensions" Option "Composite" "Enable" EndSection
and enabling the Translucence/Shadow Features in kde 3.4 or by using the xcompmgr tool I noticed a dramatically slowdown in my X. I searched around and found the following options to speed it up to normal speed again. For NVIDIA cards, add the following to the Device section in your X config file: Option "RenderAccel" "true"
For ATI cards: Option "backingstore" "true"
and for both cards: Option "AllowGLXWithComposite" "true" That should give you both pro's: translucence and shadow as well as speed.
Note: the composite extension is unstable (at least on my box).
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