ubuntu-x-swat team mailing list archive

[Slavius <slavomir.danas@xxxxxxxxx>]

I managed to simulate the same behaviour also in Arch. It happened after I've installed gnome-extra stuff. I also noticed that udev is eating like 5-15% of CPU. I run the `udevadm monitor` and saw this:
KERNEL[1259129717.200097] change   /devices/pci0000:00/0000:00:02.0/drm/card0 (drm)
UDEV  [1259129717.209746] change   /devices/pci0000:00/0000:00:02.0/drm/card0 (drm)
KERNEL[1259129717.218808] change   /devices/pci0000:00/0000:00:02.0/drm/card0 (drm)
UDEV  [1259129717.225593] change   /devices/pci0000:00/0000:00:02.0/drm/card0 (drm)
...
repeating fast.

After some googling I found a workaround by using Option "NoDRI" in Device section of xorg.conf, however that's not a solution.
Source: http://www.lesswatts.org/projects/powertop/known.php#intelgfx

-- 
i915 causes huge amount of wakeups in powertop in karmic
https://bugs.launchpad.net/bugs/495596
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