The new (released in May) iMacs G5 seem to have a problem with ApplePMU.
There is no ApplePMU in the IORegistry tree on these machines (as
evidenced by ioreg -l -w500 | grep ApplePMU).
In fact, the ApplePMU kernel extension is not loaded (as kextstat
shows) and trying to load it fails with the error :
kextload: kmod_control/start failed for com.apple.driver.ApplePMU;
destroying kmod
kextload: a link/load error occured for kernel extension /System/
Library/Extensions/ApplePMU.kext
load failed for extension /System/Library/Extensions/ApplePMU.kext
This is because the iMac G5 does not use a PMU. It uses a different
gadget that handles both fan and power control called an SMU. See the
block diagram in the iMac G5 developer note at:
Now on to the strange part :
when I try to set a wake up date, IOPMSchedulePowerEvent
(wakeDate,NULL,CFSTR(kIOPMAutoWake)) returns kIOReturnSuccess ;
however, the iMac does not wake up.
It of course doesn't wake up because there's no PMU ; but why does
IOPMSchedulePowerEvent return kIOReturnSuccess then ?
Is there a way to load that kernel extension (without getting any
errors) ?
If IOPMSchedulePowerEvent is not behaving as expected, i.e. the same
code on a different machine wakes as expected, please file a bug
report at:
Cheers,
--
J-Sun Seng
Networking & Communications / Hardware
Developer Technical Support
Apple Computer, Inc.
#1 Infinite Loop
M/S: 303-2T
Cupertino, CA 95014
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Darwin-drivers mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/darwin-drivers/email@hidden
