The screen will turn off once you get the intel video driver installed,DPMS is not supported in the vesa driver.
http://doc.slitaz.org/en:guides:powermgmt
No guide on CPU frequency scaling.

Hi Yoav
You can use xset to control your screen saver.
Install xset
# tazpkg get-install xorg-xset
Check current settings
$ xset q
Turn off screen saver
$ xset s off
Turn it on again
$ xset s on
Set the inactivity time to 20 minutes
$ xset s 1200
More options and info on man xset, or this site:
http://linux.die.net/man/1/xset
Have fun.
Best regards.

I am having a similar problem, but I am trying to get the screen to NOT turn off. I am running slitaz with no X, with busybox. No video drivers installed so what ever slitaz has Internally I guess. The screen always turns off after ~5 mins, I have used many different video cards with same result. Anyon have any ideas?

Hi kbarker.
There is actual practical no tool on slitaz for changing terminal power, that's why I made receipt for setterm. Here is my receipt with package for stable. setterm receipt
setterm -powersave off
setterm -powerdown
should turn off powersave.
Hope that developers will check and include this receipt into cooking soon.

Hi Gawron

Added to the cooking wok: http://hg.slitaz.org/wok/rev/bd196b2b6205

Thanks

Paul