Hi!

The bug seems to be back with Intrepid.

Before (in 8.04.1) on my X40 laptop (Intel 855GM) I used i810 driver and
it worked ok.

Now, in Intrepid Ibex 8.10 there is no more i810 driver - and so I am
stuck with Intel driver.

It already caused me headaches, namely with these random black screen
hangs.

However, there is a documented "fix" - it's in the intel manpage, tho
not entirely mentioned as a fix to this issue.

What you need to do is:

edit /etc/X11/xorg.conf

and add into the video card section:

Option "ForceEnablePipeA" "true"

then save it, and restart X.

It works over here, as a side (??) effect I get more accurate brightness
settings :-)

So try it out and then let the intel devs know about it, just like that
manpage says!

Cheers!

PS. The original website I found this on is here:
http://ni.imasters.pl/content/ubuntu-804-i965-i-xorg-intel-rozwiązanie-
zamrażania-ekranu

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laptop hangs when switching video mode
https://bugs.launchpad.net/bugs/127101
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