Light grey cloudy blur on mac retina display monitor

If a video pass-through card is being used, bypass the video pass-through connection and connect the monitor directly to the video card.If wiggling the cable causes the problem to go away and then come back, the cable may be damaged or have an electrical short, or the connector on the LCD is faulty.Ensure the input selected corresponds to the input port being used.The LCD has two possible connection methods, using either the HD-15 cable or the DVI-D cable.

Wiggle the cable where it connects to the LCD panel.

Reset the LCD to the factory default settings.

If the issue is that the fonts and text are distorted or blocky, it may be necessary to adjust the pitch and phase settings of the monitor.

Moving such devices away from the monitor will minimize the affects of EMI. The display elements in both Cathode Ray Tube (CRT) and Liquid Crystal Display (LCD) monitors use precisely calibrated components that can be adversely affected by EMI. NOTE: Electrical devices and florescent lighting produce an invisible field of electromagnetism that cause an effect called Electromagnetic Interference (EMI).

Turn off any florescent lighting in the vicinity of the computer.

Remove any devices connected to the same wall outlet or electrical circuit as the monitor.

Remove any magnetic devices, electrical devices, speakers, lamps or fans from the vicinity of the computer.

Contact the manufacturer of the power strip or surge protector device for further assistance.

NOTE: If this eliminates the display issues then the problem lies with the power strip or surge protector. If using the AC adapter, disconnect the AC adapter from any power strip or surge protector and connect it directly into a wall outlet.If the monitor accepts more than one input source, press the INPUT button on the monitor to cycle through input modes.Ensure the monitor cables are correctly connected.NOTE: Because each of these steps can be a possible resolution for display issues, check the display function after completing each step.

Light grey cloudy blur on mac retina display monitor