In message <20050916004714.GQ29139@bcd.geek.com.au>, Daniel Carosone writes:
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>On Thu, Sep 15, 2005 at 08:43:15PM -0400, Steven M. Bellovin wrote:
>> If the machine is on battery and left running unattended, the screen=20
>> blanks.  Usually, I can't get it to turn back on again, except by=20
>> suspend/resume -- and sometimes (like just now) the suspend doesn't=20
>> work.  From that, I suspect that there's an APM event being sent to the=
>=20
>> kernel, and it isn't being handled properly.  Has anyone else seen=20
>> this?  Any fixes or bypasses?
>
>It may not be entirely apm.. does "xset dpms force on" produce any result?
>

I'll try that next time it happens if I'm in a situation where I can 
get to it remotely....  But I suspect APM because of the suspend 
problem.

		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb