Messages in this thread |  | | | Subject | Re: apm standby on thinkpad | | From | john stultz <> | | Date | Thu, 20 May 2004 11:16:18 -0700 |
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On Wed, 2004-05-19 at 06:48, Alexander Mirgorodskiy wrote: > Folks, > > I ran into a problem with APM on a Thinkpad T41: the system cannot > properly resume after a standby. The backlight turns on, but the > screen remains blank. This happens on keypress (fn-f3) and > idle-time-induced standbys. However, resume after "apm -S" works just > fine. > > I inserted some trace statements into the apm kernel driver and found > that it does not seem to receive standby and resume notifications from > BIOS if standby is initiated through fn-f3. At the same time, it does > receive the notification on a resume from "apm -S". > > P.S: I see this on a RedHat 9 system with the 2.4.20 kernel. For a > bunch of reasons, I cannot upgrade to anything else in the short > term. (I did try 2.4.26, but it behaved even worse -- didn't wake up > at all, even if standby was entered with "apm -S")
Just for a datapoint, I cannot reproduce the issue using 2.6.6 on a T40 installed with Fedora Core 1. -john
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