Screen saver on B4 units

[Ricardo Carrano]

Though "xset q" returns the following settings on both an MP and a B4 unit, screen saver
 does not seem to work in the latter. I mean, the screen does not blank as it does in
the MP unit.

(...)
Screen Saver:
  prefer blanking:  yes    allow exposures:  yes
  timeout:  600    cycle:  600
(...)
DPMS (Energy Star):
  Standby: 1200    Suspend: 1800    Off: 2400
  DPMS is Enabled
  Monitor is On
(...) 

The same happens in joyride 1477 or in 653.

Is this expected/known? 

--
Ricardo Carrano