Al. C wrote:
> I hope I've not asked this here before. I've looked all over the net and
> have not been able to find the answer. I've asked everywhere and no one
> knows, so as last resort I turn to the Slack gurus (who know everything!)
>
> My wife's Toshiba Sat. A45/S151 runs Slackware 9.1 and KDE.
>
> Every 20 minutes or so the screen goes blank (even if you are using mouse)
> and you MUST hit any key to return it. Major PITA.
>
> So far, the best docs I can find say that Fn+F2 should 'rotate' the machine
> through various power-stages. But it does not work no matter how many times
> I've tried it.
>
> I've checked all the power/energy settings to 'off" in KDE but maybe Slack
> is still set to ACPI or APM or something? Personally I think its a hardware
> thing that can only be reset in Windows via the Toshiba "console." I've
> checked the BIOS and don't see anything there that would cause this.
>
> If anyone has an idea, let me know. It's been driving me bats for the past
> year!
>
> Al
>

The first thing you have to do is to check the output of xset -q and see
if there are information about DPMS. If DPMS is enabled then is the
responsible. DPMS ²can be set in /etc/X11/xorg.conf or in KDE (look an
option related to Energy star). Maybe you must have a ACPI aware kernel
to enabled that. In my Toshiba sattelite A40-261 there are an option in
the bios there are default value related to DPMS (but the linux setting
should override this). You can access the bios (of the A40-261) by
pressing <ESC> then <F1> just after having powered on the laptop.

Olive