On my Lenovo t540p running Ubuntu 14.10, the animations associated with expo, window spread, minimize, and workspace switch are choppy when the resolution is set above 1920x1080. One can see a stutter in the animation.
The graphics card is Intel 4th Gen Core Processor Integrated Graphics Controller and the driver is intel (unloaded: fbdev, vesa) as reported using inxi -Gs.
Is there a way to get the graphics card working at full resolution (2880x1620)?
At the moment, Intel does not provide official drivers for Ubuntu 14.10.
They've stated that drivers for 14.10 will likely be released within their next quarterly release (Source).
You can keep an eye on their download page here. The current installer is at v1.0.6, so I'm going to guess that v1.0.7 will be the next in line.
If the performance hit is really bothering you, I'd maybe suggest downgrading to 14.04 until drivers are released and then simply upgrading from there.
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