I swapped the driver for the i810, but the results were the same. DRI get's disabled during startup after it gets loaded. Not sure what to make of that. I've attached by xorg.conf and the log file, but the part that looks bad is this: (II) intel(0): depth buffer is tiled drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: open result is 11, (OK) drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: open result is 11, (OK) drmOpenByBusid: Searching for BusID pci:0000:00:02.0 drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: open result is 11, (OK) drmOpenByBusid: drmOpenMinor returns 11 drmOpenByBusid: drmGetBusid reports pci:0000:00: 02.0 (II) [drm] DRM interface version 1.0 (EE) [drm] Could not set DRM device bus ID. <=== BAD (EE) intel(0): [dri] DRIScreenInit failed. Disabling DRI. (II) intel(0): Page Flipping disabled