

I actually got my desktop showing up on the external screen but it was a very low frequency so it was annoying to use. PS! I have already tried another solution which was to purchase a graphic card adapter to connect with USB to my Macbook and then connect my external monitor with HDMI to the adapter. I'm truly grateful for all of your tips and advices here. So Im wondering what am I doing wrong here and have any of you managed to actually successfully connect multiple external monitors to an older Macbook pro in a Extended-mode (not mirrored). But somehow I got screen flickering on the external monitor and it just steadily turned on and off. port to TV via HDMI, mid 2011 MBP 13 OSX Lion (10.7.2) MacBook Pro to my Vizio. So what I did was to purchase a Displayport MST-Hub with a Thunderbolt/Minidisplay cable going to the port of my Mac and then I tried to connect one external monitor to that Hub throughout a HDMI-to-Displayport adapter-cable. Get Pruthvik Mini Display Port to HDMI Female Adapter for Apple MacBook. The only input port that my Macbook is supporting is Thunderbolt/Minidisplay port. What I'm trying to do is to connect 2 external monitors to my Macbook so I can get a "Extended display-mode".

I have a Macbook pro from 2011 running Mac os X El Capitan version 10.11.6 with the following technical specification:
