Retina MBP screen is black when switching spaces

Jacobwilson99

macrumors member
Original poster
Jun 3, 2012
64
0
When I switch between spaces, the screen flashes black and then loads the wallpaper and mounted drives and such.

When I scale the screen to 1920x1200, and switch spaces, only the part of the screen that would be "Best for Retina" blinks black. The rest of the screen displays wonderfully. It has a Samsung screen, btw.

This never happened on my 2007 MBP.

Any help?
 

shznit

macrumors member
Apr 4, 2010
84
1
When you scale up to 1920x1200 on the retina model, the os is actually rendering at 3840x2400 then scaling back down to 2880x1800 and it's why it looks so good even though it's scaled. Now multiply that by multiple spaces. That is a lot of pixels to keep in the framebuffer at one time.

It wouldn't surprise me if some kind of a buffer flush or reset happens when switching spaces.
 

Jacobwilson99

macrumors member
Original poster
Jun 3, 2012
64
0
Then, hypothetically, if I ran the screen at the native resolution, there wouldn't be any blackout?
 

shznit

macrumors member
Apr 4, 2010
84
1
I was just throwing out a theory. Played with a coworker's rMBP yesterday and didn't this happen.