http://bugzilla.kernel.org/show_bug.cgi?id=10932
Summary: ACPI dead after resume
Product: ACPI
Version: 2.5
KernelVersion: 2.6.24.5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Sleep-Wake
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
Distribution: Gentoo
Hardware Environment: IBM Thinkpad T22
Software Environment: Latest BIOS (1.12), kernel 2.6.24.5 with TuxOnIce 3.0rc7
and Gentoo patchset applied.
Problem Description:
After resuming from suspend while being on battery acpid does not receive any
ACPI events. The <Fn> combinations stop working since they are not caught by
acpid anymore, neither are unplugging the AC adapter or opening/closing the lid
and so on. Before suspending /proc/interrupt reports continously many ACPI
interrupts even without pressing a button. After waking up /proc/interrupts
keeps reporting ACPI interrupts but only when an event is triggered by hand
(e.g. <Fn><F*> keypress) which produces much fewer interrupts than before.
I am using the module thinkpad-acpi but even the <Fn><F7> combination, which
works without thinkpad-acpi loaded, stops working after resuming from suspend
on
battery.
Restarting acpid does not help.
If I resume while being on AC the events continue working.
I tried the boot options "acpi=noirq", "pci=noacpi", "noapic" and "nolapic"
without success.
I don't know if the DSDT is buggy since i didn't find a fixed version on the
net
but disassembling and reassembling gave me 9 warnings and 2 remarks. I can
attach the DSDT if that would help.
Theres a similar bug which is marked fixed but nothing written there helped me:
http://bugzilla.kernel.org/show_bug.cgi?id=2643
Steps to reproduce:
Trigger ACPI event (e.g. <Fn><F3>)
echo mem > /sys/power/state
Wait unti machine sleeps, wake it up
<Fn><F3> and other ACPI events will not be received by acpid
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