My screen frequently doesn't refresh correctly and white rectangles remain. What can I do?
My graphics adapter is 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
(printed by lspci)
I am using Ubuntu 11.04 in the Classic session, with no effects.
[UPDATE] Natty uses Intel video driver version 2.14. I downloaded the sources for the Oneiric version, which is 2.15, from packages.ubuntu.com. Compiled the kernel module and installed it using make install. I copied the file *intel_drv.so*, which was located in a directory inside /usr/local/lib, to the corresponding /usr/lib directory and renamed the existing *intel_drv.so* file. Xorg.0.log now shows driver version 2.15, but the problem still occurs. Maybe I made a mistake or missed something?
Here are two screenshots that illustrate the bug at 1366x768 and 1024x768: