Same problem occurs on a Compaq Presario SR1220NX using the i810 driver for an 845G chipset. I have the problem with both the screensavers (Kubuntu) and Google Earth Beta 4.
-- [i915] GL screensavers only drawn on top 1/3 of screen https://launchpad.net/bugs/23816 -- kubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
