[compiz] Root Visual not a Double Buffered GL Visual (compiz-GIT-20061223)

[Esben Stien]

Trying to run compiz on xorg-7.1 (aiglx), but getting the message:

compiz: Root visual is not a double buffered GL visual
compiz: Failed to manage screen: 0
compiz: No manageable screens found on display :0.0

I'm on GNU/Linux with kernel 2.6.18 using DRI on ATI Radeon 9250
(rv280). I have mesa-6.5. Direct rendering is working fine.

I've seen numerous people mention this problem, but they seem to be
using proprietary drivers.

My xorg log shows: 

(**) Option "AIGLX" "on"
(**) Extension "Composite" is enabled

Any pointers as to what may cause this?

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