11.1 -> 11.3: Suspend to RAM no longer works when screen locked

Hello, after upgrading from Opensuse 11.1 to 11.3 (KDE desktop) everything is generally fine.

One small irritation though:

I have my PC set up (using KDE Power Management) to Suspend to RAM when the power button is pressed. This previously worked even when the screen was locked, but under 11.3 this doesn’t seem to work. Any ideas…?