I'm just guessing here, but it might have something to do with the graphics driver. Are you using the default xorg driver, or have you installed proprietary graphics drivers?
There aren't any proprietary drivers for the i915-supported chipsets.
OP: what is your kernel's version? I don't know anything about openSUSE, but it's possible that its kernel is too old to offer proper GPU acceleration support.
I know that the X200s is definitely well-supported by Debian Squeeze (and pretty decent under Lenny too, for that matter), so I'm pretty sure you're dealing with a distro/config issue rather than a general Linux incompatibility.
Need help with Linux or FreeBSD? Catch me on IRC: I'm ThinkRob on FreeNode and EFnet.
Current laptop: Lenovo ThinkPad T420 (running Debian Wheezy) - kestrel [pending retirement]
Current workstation: IBM Intellistation 9228 (running FreeBSD 9.1) - blackbird