half screen black mac monitor remote desktop

#Half screen black mac monitor remote desktop how to#

Usually, you have to press the Function (FN) key and one of the functions keys like 'F8' or 'F10.' If you have a laptop, use the designated function keyboard shortcut to increase the brightness to see whether that's causing the problem. Also, confirm that monitor has the correct input selected.įurthermore, you can try connecting the display to a different system or using a different video cable to determine whether you are dealing with a broken monitor, graphics card, or damaged cable. In case this is an external monitor, open the display's control panel and adjust the brightness level to fix the black screen problem.

#Half screen black mac monitor remote desktop how to#

(You may need to check your hardware manufacturer's website for details on how to proceed.) If you suspect this could be the case, open the computer case, remove the card from the motherboard, and reinstall it again. If you have a traditional desktop computer with a discrete video card, the hardware may not be fully making contact with the motherboard's slot. If you recently updated the UEFI (Unified Extensible Firmware Interface), this action can sometimes disable the discrete graphics card, which you can only re-enable from the motherboard firmware. In case the system features an integrated graphics card on the motherboard and an add-in discrete card, you may want to switch the video to the embedded graphics to confirm if the problem lies in the discrete card.