Scary washed out display this morning

[germinator]

I switch between locations. At the office I use an external display. Last night I put the MacBook Pro 15" i7 to sleep, then disconnected the display.

This morning I woke up the computer at home (without external display), and something very scary happened: The screen was totally washed out and whitish. It's hard to describe, but the display was unusable. I tried turning up and down the luminance controls, and changing color sync profiles: Nothing helped. Put it back to sleep and re-awoke: no change.

Finally I restarted the computer, and that fixed it.

This has never happened to me in may years of using a Mac laptop.

Any ideas?

 

[Jof]

I switch between locations. At the office I use an external display. Last night I put the MacBook Pro 15" i7 to sleep, then disconnected the display.

This morning I woke up the computer at home (without external display), and something very scary happened: The screen was totally washed out and whitish. It's hard to describe, but the display was unusable. I tried turning up and down the luminance controls, and changing color sync profiles: Nothing helped. Put it back to sleep and re-awoke: no change.

Finally I restarted the computer, and that fixed it.

This has never happened to me in may years of using a Mac laptop.

Any ideas?

Something similar happened to me; the gamma mysteriously switched from 2.2 to 1.8 on my 5,1 MBP making it all washed-out. Happened quite a few times on 10.5.8 but not yet on 10.6.3 for me.

Maybe something like that?

 

[germinator]

OK. How do I reset the gamma without restarting the computer?

 

[Jof]

OK. How do I reset the gamma without restarting the computer?

Normally it just fixes itself the moment I select the Color tab in Display or just click on a profile... But I think you've already done that...