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Bug#420099: Extremely slow ACPI on Thinkpad R51e



Package: linux-2.6
Version: 2.6.20-2

ACPI seems to be extremely slow. Suspending works, but takes over two
minutes to complete a full cycle. Querying various /proc/acpi entries
takes a long time. For example:

$ time cat /proc/acpi/battery/BAT0/state
present: yes
capacity state: ok
charging state: charging
present rate: 2740 mW
remaining capacity: 44660 mWh
present voltage: 12572 mV

real 0m8.508s
user 0m0.004s
sys 0m0.000s

This causes some UI problems with some applications and applets that poll
this file.

In addition, hald takes a long time to start up (delaying most of the
time on "modprobe battery" according to Bash's -x ) and lid and button
ACPI events are not recognised at all.

Identical problems arise with both the 2.6.18 and 2.6.20 kernels, but not
with 2.6.17.

Regards,

-- 
 Chris Lamb, Leamington Spa, UK                          GPG: 0x634F9A20

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