At 12:22 PM 11/26/2009, YES NOPE9 wrote: >I have an 19 inch LCD display I got for $5 at a junkyard. I hacked >together a 24V 2A supply for it. It works fine except....... >It is a second monitor for my MacBook. When my MacBook goes to sleep, >the display goes black. When I wake my MacBook up, often the extra >display is torn horizontally. The right and left edges have jagged >edges with a periodicity of about 4 mm. At first I would turn the >display on and off and eventually it would stabilize. Then I >accidently noticed that if I left it alone for 90 seconds .... the >jags would get larger in periodicity and eventually would reach about >20 cm at which point the display stabilizes. > >What might be causing this behaviour ? What refresh rate do you have set for the second monitor? If its not 60 Hz, I would try changing it to 60 Hz and see if that makes a difference. dwayne -- Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax www.trinity-electronics.com Custom Electronics Design and Manufacturing -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist