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strange poweroff/reboot behaviour

Hi all,

Just upgraded an Acer Aspire 5250 laptop to
NetBSD 6.99.28 NetBSD 6.99.28 
(MARION-DUFRESNE) #12: Tue Dec 24 13:51:40 GMT 2013  

and it's been running more or less OK, but for one strange thing: 
whenever I try to shut it down, power it off or reboot it, it shuts off 
completely and starts beeping (three long, two short). Same 
behaviour, at lower beep volume, when I turn it on again - but 
removing the AC adapter then restores normality.

This is new behaviour, NetBSD 6 did not have the problem.

I've asked Acer what these BIOS beeps actually mean, the Internet 
doesn't seem to know. But while I wait for their response, I thought I'd 
ask here: does anyone know what change between 6 and -CURRENT 
might have caused this problem, and how it might be solved? Of 
course, I'd be happy to provide more data and/or do things to help 
debug the problem, just ask.


"Then I'll tell the truth. We're allowed to do that in emergencies."

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