I solved the issue by downloading and activating in xorg.conf the same EDID-values as the users of Sony Vaio CW-laptops. This feels a bit odd as the laptop LCDs are different.
The file in question (sonycw.txt) as well as discussion of the same problem w/ nvidia 310m: http://ubuntuforums.org/showthread.php?p=9149278
I solved the issue by downloading and activating in xorg.conf the same EDID-values as the users of Sony Vaio CW-laptops. This feels a bit odd as the laptop LCDs are different.
The file in question (sonycw.txt) as well as discussion of the same problem w/ nvidia 310m: http:// ubuntuforums. org/showthread. php?p=9149278