6ft 32AWG Mini DisplayPort Male to Female Extension Cable - White
If you can't replace the cable you have with a longer cable, the best solution is to extend it. Monoprice offers Mini-DisplayPort extension cables to extend your existing cable for situations were the cables just are quite long enough to reach.
DisplayPort v1.1 * Does not support audio
Question: My adapter and/or cables are connected to my Mac but I don’t have any picture, even though the Mac recognizes the adapter?
Answer: You may need to adjust the display settings on the Mac before you can see any picture on the tv.
Try the following:
1.) Go into the System Settings
2.) Go into the Display Settings
3.) On one of the Tabs in the Display Settings Window there will be a button on the lower right hand corner that says “Detect Displays”. Click on it.
4.) On one of the other tabs in the Display Settings Window will be a list of different resolutions, such as 1920x1080. Try them all until you find one that works, it can vary from setup to setup depending on the devices.
5.) On some models of Mac’s you can disable the discrete video card. When discrete video is disable the external display does not work. Re-enabling discrete video fixes the issue. To check if it is enabled go into the system settings and it will be under the energy saver options in the upper left hand side.
~ Should that not work ~
6.) Run the graphics and EFI updates.
Some firmware updates for Intel-based Macs may not be displayed automatically using Software Update. If they do not appear in Software Update, they must be manually downloaded from the Apple Downloads site. If you are unsure whether your computer needs a particular update, simply download and open the update installer. The installer will alert you if the firmware update is already installed or not needed.
Note* Some models of Mac’s the connector may block access to the adjacent USB accessory port.
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