http://bugzilla.kernel.org/show_bug.cgi?id=6906
Summary: acpi wakeup events don't work; Shuttle SN41G2 NForce2
(and others)
Kernel Version: 2.6.10 through 2.6.18-rc2
Status: NEW
Severity: normal
Owner: [EMAIL PROTECTED]
Submitter: [EMAIL PROTECTED]
Most recent kernel where this bug did not occur: NEVER WORKED
Distribution: (IRRELEVANT)
Hardware Environment: NFORCE2 IGP, Athlon XP 2400
Software Environment: currently, Ubuntu 6.06 with 2.6.18-rc2
Problem Description:
System doesn't resume correctly from wakeup events.
This system supports ACPI S0, S1, S3, S4, and S5; the only
wakeup event I've ever seen work is PS2 keyboard from swsusp,
which kicks in a soft reboot from BIOS.
Other wakeup events kick the system out of the an S1 or S3 state,
but the system locks up almost immediately. (To be specific, the
sleep state powers off two front panel LEDs, disk/orange and power/blue.
On wakeup, both go on; then the power LED goes off.)
Wakeup events I've tested include: USB (both OHCI controllers, EHCI)
remote wakeup from S1 and S3; PS2 keyboard from S1 and S3; ACPI RTC
from S1, S3, and swsusp/reset. All of them fail the same way, except
for the RTC wakeup from swsusp. That swsusp wakeup worked OK until
part way throught the Linux boot, at which point it wedged with the
video display indicating some from Linux. (I'll have to repeat that
test later, to report exactly what.)
This failure mode -- wakeup works at the hardware level, then things
immediately wedge (with, at best, some text on the console) -- is
typical of what I've seen with multiple Linux ACPI test runs. It
looks like there's some problem after ACPI receives the wakeup event,
rather than something specific to ACPI on the system of $SUBJECT.
Steps to reproduce:
See above. Suspend using "echo ... > /sys/power/state", use one of
the abovementioned wakeup event sources. Watch system lock up after
hardware hands things over to software.
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