https://bugzilla.novell.com/show_bug.cgi?id=72391


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------- Comment #71 from [EMAIL PROTECTED]  2006-03-27 00:54 MST -------
> I got the system with ht in stable mode with just one change:
> plugging another mouse (USB) in and not using the synaptics touchpad.

This is a clue.  USB generally prevents deep-C-states;
and you have an HT machine, which probably doesn't support
deep-C-states, unless it is in uni-processor mode.

Please cat /proc/acpi/processor/*/power in in HT-enabled (+USB)
and HT-disabled modes.  If it shows more than C1 enabled
and running, then try disabling it with
# echo 1 > /sys/module/processor/parameters/max_cstate
and see if that makes this issue go away.

If it works, you can implement the same workaround automatically
via /etc/modprobe.conf


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