[Bug 392812] Re: Dell Studio 1555: cannot change display brightness after a while, other hotkeys and ACPI stuff begin to fail

[v1nsai]

Having this problem on karmic as well.  I was using noapic and nomodeset
options on boot, and all the multimedia and eject and lid closing keys
worked, and it went into hiberation and came out perfectly, but I was
messing with the 'xserver-xorg-video-intel' driver and it hasn't been
working since I rolled back (forward actually) after nearly FUBARing my
installation.  I was using version 2.9, then rolled back to 2.4 and then
back to 2.9 and I haven't had ACPI since.

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Dell Studio 1555: cannot change display brightness after a while, other hotkeys and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
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