Messages in this thread |  | | Date | Mon, 12 Nov 2001 23:28:21 +0100 | From | Thomas Winischhofer <> | Subject | Re: mysterious power off problem 2.4.10-2.4.14 on laptop |
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Linda,
it could be a bad BIOS.
I don't know if this helps, but anyway:
I had a similar problem, but in ma case the machine just went to suspend mode - annoying, but somewhat easier to track. Just like in your case, nothing worked; switching off APM in BIOS, disabling APM in kernel, etc. no matter what I did (typing, using the mouse), the machine suspended.
Well:
Question 1: Are you running Windows on that machine, too? If no, you have a different problem; as said, most probably caused by a bad BIOS. That it worked under a previous 2.4.x kernel doesn't mean a lot; apm could have interpreted bad (malformed) apm messages in a different way (just a guess).
Question 2: If yes: Did you ever happen to try to boot (ie cold boot = switch ON) the machine with AC power chord connected after a Windows session?
In my case, it was a bug in the BIOS. This piece of sh** - right after a Windows session - reported a battery charging status of _more_ than 100%, leading into miscomprehending APM messages from the BIOS - leading into APM confusion. Strange enough, this _only_ happened when _switching on_ the machine on battery. It never happens when booting with AC connected.
Even more strange, in my case it is sufficient to cold boot the machine _once_ after running Windows on AC to avoid the effect in the future (however, until running windows again).
Good luck,
Thomas
-- Thomas Winischhofer Vienna/Austria Check it out: mailto:tw@webit.com *** http://www.webit.com/tw - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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