Fabian, I notice you are on an Eaglelake video chipset, which is not supported in the hardy version of -intel. You may want to try the 2.5 backport of the driver available from xorg-edgers, to see if that helps:
https://edge.launchpad.net/~xorg-edgers/+archive/ppa/+sourcepub/469034/+listing-archive-extra
Fabian, I notice you are on an Eaglelake video chipset, which is not supported in the hardy version of -intel. You may want to try the 2.5 backport of the driver available from xorg-edgers, to see if that helps:
https:/ /edge.launchpad .net/~xorg- edgers/ +archive/ ppa/+sourcepub/ 469034/ +listing- archive- extra