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Anyone having troubles with external displays after security update?

cmChimera

cmChimera

macrumors 601
Original poster
Feb 12, 2010
4,325
4,085
My mac will not automatically detect displays, and even sometimes requires a restart. Any clue as to why? I've reset SMC, PRAM, repaired permissions, and cleared the caches. I'm at a loss.
 
I had a problem with this also and had to restart before it would recognize the monitor...it would actually act like it was switching to dual displays but it never sent the signal.
 
tjb1 said:
I had a problem with this also and had to restart before it would recognize the monitor...it would actually act like it was switching to dual displays but it never sent the signal.
Click to expand...

I have the same model as you. Were you able to fix this problem?
 
Restarting it fixed it that time but I dont really use the external monitor that much, I will try it again when I have a chance and let you know.
 
tjb1 said:
Restarting it fixed it that time but I dont really use the external monitor that much, I will try it again when I have a chance and let you know.
Click to expand...

Yeah everytime I want to use an external display a restart is required, and when I disconnect it, the Mac remains in external display mode. I have to detect displays to return it to normal.
 
I use both a minidisplay to dvi for my desktop monitor, and a minidisplay to hdmi for my tv hookup and both are working like normal after the update. I didn't reset SMC, PRAM, repair permissions, etc... just a few shutdown & startups have occurred since I applied the update.
 
tjb1 said:
Ive been in class since 8am sorry, now 12:33pm and in about 15 mins ill get back and be able to test it before my next class.
Click to expand...

Sweet thanks.

I use both a minidisplay to dvi for my desktop monitor, and a minidisplay to hdmi for my tv hookup and both are working like normal after the update. I didn't reset SMC, PRAM, repair permissions, etc... just a few shutdown & startups have occurred since I applied the update.
Click to expand...
I envy you greatly.
 
Now I dont have to restart, just have to detect displays when I connect or disconnect which is slightly less annoying. I'm not sure what's going on. If you ever check in osx let me know. Did it automatically find the display?
 
cmChimera said:
Now I dont have to restart, just have to detect displays when I connect or disconnect which is slightly less annoying. I'm not sure what's going on. If you ever check in osx let me know. Did it automatically find the display?
Click to expand...

Did check on osx and did work, will check soon to see if it works after sleep.
 
I did have issues. I just used GFXCardStatus to change from n -> i then back to n. Now it works as needed.
 
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