I just installed Slackware 10.1 on my laptop and I have this weird problem, after my screen saver comes on and runs for about 10-15 minutes, the screen goes blank and it won't respond. The only way to get the system back is to kill the X-Windows. I have tried doing:
xset s noblank
xset s 600 600
and so on but the problem still persists. My DPMS is disabled as well.
I have also tried setting these options in the /etc/X11/xorg.conf file.

I am perfectly fine with my screen saver always being on, since the laptop has hardly any battery life.

What do I need to do to make it stop blanking my screen?

P.S. I have not had this problem with Slackware 10.0

Have you played around with the settings using xscreensaver? What window manager are you using?

yes I have, and it does it regardless whether I use gnome, KDE or XFCE.

Are you using some OpenGL screensaver? That caused some troubles sometime ago...

nope, just a standard one.

How about seting the option in xorg.conf for "basic blanking screen saver" to 0? Looks like it defaults to 10. Maybe there's a conflict/bug. I don't actually know if that line with the #sign in front of it is ignored or just needs to be un#ed to change that from a 10 to something else.

I assume you've tried different screen savers to see if they all stop responding after 10 or 15 minutes or just one particular one.

Might also be a good idea to check you'r machines BIOS settings. Just a thought...