http://bugzilla.kernel.org/show_bug.cgi?id=7122
Summary: Fans out of control after resume from disk on HPC nx6325
Kernel Version: 2.6.18-rc5-mm1
Status: NEW
Severity: normal
Owner: [EMAIL PROTECTED]
Submitter: [EMAIL PROTECTED]
CC: [EMAIL PROTECTED],[EMAIL PROTECTED]
Most recent kernel where this bug did not occur: Unknown
Distribution: SUSE 10.1
Hardware Environment: HPC nx6325 (AMD Turion 64 X2)
Software Environment: x86_64, SMP, non-preemptible kernel
Problem Description:
Fans don't work properly after a resume from disk.
Namely, according to ACPI there are four fans in this box, denoted by 34F, 350,
351, and 352. Usually, the 352 fan is always on and the 351 fan is turned on
when the temperature reported in TZ1 and TZ2 gets too high (above ~50 C).
However, after a resume from disk either all fans are reported to be 'off' and
they are never turned on, even if the temperature in TZ1 gets above 70 C, or the
352 fan is reported to be 'on' and the other ones are reported to be 'off', but
the 351 fan is actually always on, even if the temperature in TZ1 and TZ2 is
well below 45 C.
If the kernel is compiled with CONFIG_ACPI_DEBUG=y, the following statements
appear in dmesg during the final resume (ie. the resume in the "restored"
kernel):
acpi acpi: resuming
ACPI: Transitioning device [C34F] to D3
ACPI: Transitioning device [C34F] to D3
ACPI: Transitioning device [C350] to D3
ACPI: Transitioning device [C350] to D3
ACPI: Transitioning device [C351] to D3
ACPI: Transitioning device [C351] to D3
ACPI Exception (evregion-0424): AE_TIME, Returned by Handler for
[EmbeddedControl] [20060707]
ACPI Exception (dswexec-0458): AE_TIME, While resolving operands for [Store]
[20060707]
ACPI Error (psparse-0537): Method parse/execution failed [\_TZ_.C349] (Node
ffff810037a3f490), AE_TIME
ACPI Error (psparse-0537): Method parse/execution failed [\_TZ_.TZ3_._TMP] (Node
ffff810037a40458), AE_TIME
Steps to reproduce:
Suspend to disk and resume.
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