Re: apm standby on thinkpad

[john stultz]

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

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/