Comment 341 for bug 252094

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strav (strav) wrote :

Note to eee pc users.

From what I've gathered, the intel driver now defaults to the EXA acceleration method which relies on the GEM memory manager. That should be fine and dandy however note that GEM is not part of the 2.6.27 kernel. So if by any chance you got your kernel from array.org and did not upgraded to 2.6.28 (from stock ubuntu), beside having an awful fps in most 3d apps, glxgears will tell you that it cannot use GEM and this means: switch to 2.6.28, your problems will be solved.

p.s.: https://wiki.ubuntu.com/X/Troubleshooting/IntelPerformance <-- is a good thing.