Q: 27" Cinema display flickers when woken from sleep
I've noticed that my 27" Apple Cinema display flickers briefly when woken from sleep.
I have had the display for 8 months, and haven't noticed this before.
It flickers (or flashes), just once when the display wakes when the computer is woken from sleep. It only affects the bottom third of the display.
Once it has properly woken, and flickered once, it then works o.k.
Has anyone else had this?
Thanks.
Bob.
2010 Mac Pro 3.2GHz Quad Core, 27, Mac OS X (10.6.7)
Posted on Jun 27, 2011 12:53 AM
O.k., so I'll just give an update here in case anyone else suffers the same problem sometime.
I tried the 27" Cinema Display on my MacBook Pro, and there was no flickering.
........so it wasn't the display..........
I reset the PRAM and SMC, no change.
I removed and re-seated the graphics card, no change.
I re-loaded Snow Leopard from the original discs, and the flickering stopped.
I updated all the software (re-loading from discs reverts to an earlier software version), and everything is still o.k.
Problem solved!
Must have been a glitch in the software somewhere, and a reload of the OSX got rid of it.
Relief!
Bob.
Posted on Jun 27, 2011 11:37 AM