Scary washed out display this morning


i switch between locations. @ office use external display. last night put macbook pro 15" i7 sleep, disconnected display.

morning woke computer @ home (without external display), , scary happened: screen totally washed out , whitish. it's hard describe, display unusable. tried turning , down luminance controls, , changing color sync profiles: nothing helped. put sleep , re-awoke: no change.

restarted computer, , fixed it.

has never happened me in may years of using mac laptop.

ideas?
 

something similar happened me; gamma mysteriously switched 2.2 1.8 on 5,1 mbp making washed-out. happened quite few times on 10.5.8 not yet on 10.6.3 me.

maybe that?
 


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