MacBook Pro: MiniDisplayPort to HDMI not working!

[MrFluffums]

I plug my Macbook into my HDTV using a MiniDisplayPort to HDMI adapter, but it doesn't do anything! No flashes on the screen or anything! Nothing appears on the "Display" control panel. There is no "arrangement" tab.
Any suggestions to fix this?

 

[bax2003]

Is that cable 100% good ?

 

[mohsy90]

I plug my Macbook into my HDTV using a MiniDisplayPort to HDMI adapter, but it doesn't do anything! No flashes on the screen or anything! Nothing appears on the "Display" control panel. There is no "arrangement" tab.
Any suggestions to fix this?

These adaptors are notorious for working only a few times and malfunctioning. Make sure it's securely plugged in at both ends and you have your TV at the right input. The screen should flash, if it doesn't, the adaptor is bad. Also, make sure the HDMI cable you're using is not bad, check it with another device.

If the adaptor is bad, there is nothing you can do. Hopefully you didn't purchase an expensive one. I would suggest getting this knockoff cable instead of buying another adaptor :http://www.amazon.com/Mini-DisplayPort-HDMI-Adapter-Cable/dp/B003OC6LWM

As you can see from the reviews, they malfunction quick for some. I have one and so far its been working good for well over a year. Just hope you get lucky.

 

[leez]

Had something similar but... try switching to discrete card.

Didn't noticed that at first, but integrated card won't display anything on the connected tv/monitor. Should switch automatically, but it didn't in my case (at first, now it's doing that).

Replaced the cable, checked everything and same situation. Nothing in the settings. Installed gfxcardstatus, switched to discrete and then connected the monitor. It worked.

Hope that's it, nothing more serious.

 

[mohsy90]

Had something similar but... try switching to discrete card.

Didn't noticed that at first, but integrated card won't display anything on the connected tv/monitor. Should switch automatically, but it didn't in my case (at first, now it's doing that).

Replaced the cable, checked everything and same situation. Nothing in the settings. Installed gfxcardstatus, switched to discrete and then connected the monitor. It worked.

Hope that's it, nothing more serious.

+1, this is of course if you have a 15" MBP with dual GPU's.