http://bugzilla.kernel.org/show_bug.cgi?id=12011





------- Comment #31 from timo.tret...@student.hpi.uni-potsdam.de  2009-02-05 
04:45 -------
I've a MSI PR200 (also System76 daru2). This laptops have the same Problem.
ACPI works only in poll mode. Since kernel 2.6.27.5 the EC starts in interrupt
mode automaticly.

I'm testing some of the changes Alexey Starikovskiy mentioned. I've changed
ACPI_EC_UDELAY to 500 and add some udelay() calls in
acpi_ec_transaction_unlocked(). Until now the acpi seems to work better. but i
can't say if this works for longer time.


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