OK, I waited thirty minutes and then had to solve it myself.
Here is what worked.
Plugged in Power, don’t ask but this seemed to help me get at least to a display but still had the flickering.
Go to the system preferences, select Displays
Check the box “Show Displays in Menu Bar”
From there you should see your displays listed. Pick a resolution setting that stops the flickering.
You should now have a stable screen.
I did not select mirroring as this caused my display to not be as sharp. Instead you have to drag the content you want over to the monitor over. For video conference this was perfect as we can have the video app running on the LCD screen and then view other content on the MacBook on the conference table.
Hope this helps some, at least it solve my immediate problem. Just to be safe, keeping the Dell out of sight in a cabinet.
you seem to not have read the whole thread because the solution is in there.
someone posted this link: https://discussions.apple.com/thread/3382106
but i am glad your problem was solved already, i guess yours wasn't the handshake problem.
I just purchased a MacBook Pro 13" and experience the exact same color issue when it's connected via a (direct) HDMI cable to my Philips TV 42pfl8404. Apparently still the same issue with OSX 10.9 and HDMI?Does anybody have experience with OSX10.9 a MacBook and this fix: https://discussions.apple.com/thread/3382106???
Or an official reaction from Apple?