MBPro with external monitor

Try the monitor with another computer.

 

This has worked for me... with your MBP off and external monitor plugged in, lift the lid on the MBP, push the power button and then immediately close the lid. The unit should boot properly to the external display. After this, if you want to use both displays, just raise the lid again and go in to system preferences, displays, and hit detect displays. Your MPB should now recognize both displays properly. This work around has worked for many people since the latest graphics update. YMMV

 

If you boot up the MBP with a monitor plugged in, it runs the external monitor in the same rez as the MBP screen. Reboot, with the monitors unplugged, then once OS X is booted, plug in the monitors.

 

I have been doing this!!! I have the exact same problem. This is getting irritating to have to do this every time I reset my computer. ANyone know of a apple support thread that is referring to the same subject? I want to subscribe to it. Any workarounds to avoid this?

 

This is absurd. I mean I have been reading threads on this going back a month or so. Is there no solution by apple for this?

All of a sudden, I guess I haven't used the feature in 3 weeks or so, but now I can't use any external tvs. Using the DVI/RCA to a TV (just to watch movies) and now it won't connect.

Is this all the same problem?

 

Have you tried hitting F7 when the monitor is in to turn off the mirroring mode?

Why haven't you spoken to Apple yet if you've had this issue for weeks?

 

Haven't had the problem for weeks that I know of. I just haven't used the feature for weeks.

But when I read the 4 threads on here and this one on apple:

http://discussions.apple.com/thread.jspa?messageID=6881326

it looks like this hasn't been addressed.