very odd screen goes dim bug in f12

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 I just installed a fresh f12 - fully updated - lenovo T61p laptop -
using nouveau.

 If i go to a virtual terminal - or if I set the run level to 3 (no
graphics).

  After some period the screen goes dark - fine - however when I awaken
the screen the backlight on the LCD display is almost off - starting up
(or switching back to vt1) - the graphics are dimmed too.

  Rebooting does NOT restore the backlight - it remains dim.


  If I now login - I have power applet on taskbar - suddenly (perhaps
when power applet starts) suddenly screen goes bright again!!!

  Something about text vt's .. and dpms truly mucks up the backlight.

  Anyone else seen this weird/nasty[1] bug?



 gene

[1] - I thought my display had died ... and that would be bad since this
is used for RW (real work)!!!