Display blanking after 10 minutes

I’m assuming this is a beta problem since it didn’t happen on 11.2 or prior.

No matter what I disable the screen goes blank after 10 minutes of no mouse or keyboard input. I’ve disabled power management, screen saver is set to 30 minutes, and display dimming has been turned off.

Dell Studio 1745 laptop
Intel Mobile 4 graphics chip
currently using openSUSE 11.3 M2 (also happened on M1)
Linux laptop 2.6.33-rc7-3-desktop #1 SMP PREEMPT 2010-02-12 17:37:20 +0100 x86_64 x86_64 x86_64 GNU/Linux
KDE 4.4.00 “release 1”

Searched the forum but only found old (3+ years) that sounded similar.

Any suggestions?

Thanks, Tom