[Bug 440411] Re: spam of change events from drm/card0

[Nicholas J Kreucher]

After 2 days of testing, this patch seems to fix the issue for me. No
more spam of change event messages in udev, and udev cpu usage is back
to normal.

Note, it's unclear to me how the patch would effect folks using, say,
HDMI outputs with this chip. Someone who has such hardware needs should
test.

Attaching diff against ubuntu karmic kernel git tree.

** Patch added: "adapted from http://bugs.freedesktop.org/attachment.cgi?id=32825"
   http://launchpadlibrarian.net/39924595/i915-udev-spam.patch

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spam of change events from drm/card0
https://bugs.launchpad.net/bugs/440411
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