desktop effects gone with kernel 2.6.30

[Marcus Better <marcus@better.se>]

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Hi,

after upgrading from kernel 2.6.29.4 to 2.6.30, desktop effects cannot be 
enabled anymore in KDE 4.2.4.

The system is a Thinkpad T61 with Intel GM965, xserver-xorg-video-intel 
2:2.7.99.1-2, xserver-xorg-core 2:1.6.1.901-2, using UXA and KMS. Any ideas 
where to start looking? Nothing stands out in the X.org logs.

Cheers,

Marcus

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