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Premiere Pro 5.5 stopped recognizing my external monitor
I’ve been using Premiere CS5.5 since right after it was released. I have it running on a 27 inch iMac i7. I have always used it along with a Vizio 22 inch LCD 1080P TV as my external monitor. The monitor is connected via HDMI using a miniDisplay port adapter. This setup has always worked just fine for me. I simply would open a sequence, go to sequence settings, playback settings, and there in the external device dropdown I had an option for None, some DV option, or my 1080P monitor. Recently, however, in the middle of an editing session the signal to the external monitor cut out. Not the entire signal from the computer, just the signal from Premiere. I still had connection with the iMac. I tried to return to the dropdown playback settings and select the monitor, but it was no longer listed as an option.
SInce then I have not yet been able to get Premiere to recognize the monitor. I have disconnected the monitor, powered down the computer, reconnected the monitor, rebooted Premiere, and have done all of this in every possible order combination I can think of. I have tried with numerous different sequences at different resolutions, as I was for the first time working with a Canon XF media sequence from my new camera, and all my previous sequences where I had no problems had been HDV. No difference. I messed with all of the setting for the external monitor, toggling mirroring, resolutions, mhz, everything. No luck. I finally decided to open up Final Cut Pro 7, as I have it set up with the external monitor as well, and see what happened. Boom. Monitor came up for viewing as soon as FCP booted a project. Now I am confused.
I have exhausted almost everything I can think of and cannot figure this one out. If anybody can help me I really appreciate it. Here are some specs that may help:
Apple iMac 2.8 GHz Intel Core i7
16GB 1067 MHz DDR3
ATI Radeon HD 4850Premiere Pro CS5.5 (fully up to date)
Vizio 22 inch 1080P HDTV
VZ22LFHDTV10T
1920 x 1080 @ 60 Hz
32-bit Color
Mirror is set to Off
Television is set to Yes
Connected via Mini Display Port and HDMI adapter