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[Bart Kroon <bart@xxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-common

I run a mostly Jaunty install, but due to memory leaking of the intel driver, xserver-common xserver-xorg-core and  I upgraded those packages to the karmic versions. After this my laptop wouldn't suspend when I closed the lid (did work from gui).
After poking around google I came up with the above /proc path, so I went: 
cat /proc/acpi/video/VID/DOS
DOS setting: <7>

Some more quick research showed me that this value should be either 1 or 0 depending on whether the hardware or software should determine which display to resume on (this is only video chip resume) but never 7.
After echoing 0 in there the suspend would run without any trouble as before.

Now I don't know exactly which packet broke this but it must be one of
the xorg related packages since that were the only one's installed this
afternoon. It is not the intel driver from karmic as that was installed
earlier and didn't give me trouble suspending.

uname -r 2.6.30-9-generic

xserver version 2:1.6.1.901-2ubuntu1

** Affects: xorg-server (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: intel suspend xorg

-- 
[karmic]/proc/acpi/video/VID/DOS is set to 7, breaks suspend
https://bugs.launchpad.net/bugs/391413
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