Resolved MBP Monitor problem

[Bravo3013]

Hello,

I am using a AOC 34" monitor with my MBP 15" Early 2011. The monitor is connected with a Mini DisplayPort-Displayport cable.

The problem: A few weeks backs, the monitor stopped working for two days, before eventually working again. Since then I purchased a new cable, as I presumed that would solve the problem, which it did not. I have restarted my mac many times, tried a safe-boot and reset NVRAM, without any luck. Do you believe the monitor is faulty or could it be my mac?

Thanks,

 

[JTToft]

Is your machine fine otherwise when running off the discrete Radeon GPU with no monitor attached? And are you able to isolate the issue by trying a different monitor or TV with your Mac or a different Mac with your monitor?

 

[Bravo3013]

Yes, the mac runs fine with the radeon and it works on other monitors. I also tried to attach a PC to the doc monitor, but it still did not work. The aoc monitor runs fine with HDMI.

EDIT: I managed to solve the problem by unplugging the monitor from the wall and wait a few minutes before plugging it back in. Apparently a capacitor has to fully discharge for the DisplayPort to work.

Thanks for the assistance!

 

[JTToft]

Good to hear.