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[ubuntu] Virtualbox 3D support is slow after kernel upgrade

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linux-howto

http://ubuntuforums.org – I hope this is in the right area... Apologizes if it is not. So I installed VirtualBox 4.1.10 on Windows 7 64bit and Ubuntu 11.10 (64bit) a few days ago. I enabled 3D support in VirtualBox and installed guest additions in ubuntu. It was great, super smooth. Window manager was snappy and I could move windows around no problem. CPU usage goes up a bit but it was very responsive. Code: user@user-VirtualBox:~$ uname -r 3.0.0-12-generic Here is the problem. When I did all the ubuntu updates today, the responsiveness dropped completely. I re installed the guest additions but stil (Hardware)