Bug#503465: Some more information

[Jan-Marek Glogowski <glogow@fbihome.de>]

This bug actually has a long history and I also have a few HP laptops with
this problem (2510p).

http://bugzilla.kernel.org/show_bug.cgi?id=6001
https://bugzilla.novell.com/show_bug.cgi?id=378917
https://bugzilla.novell.com/show_bug.cgi?id=290219
https://bugs.launchpad.net/xorg-server/+bug/138256

There are many options, which may fix the problem:

echo [0123] > /proc/acpi/video/*/DOS

Section "Device"
 ...
 Option "ForceEnablePipeA" "true"
EndSection

echo "video" > /etc/modprobe.d/blacklist-video