If you’re using a 4K external display, then there’s no guarantee that your graphics card will be powerful enough to push all of those pixels to the 4K display.
#Viewsonic driver for mac mac#
Using 4K? Make Sure Your Mac Is Compatible! If your MacBook has the T2 chip, you’ll need to use the Shift key on the right side of your keyboard in addition to the other keys.ġ4. Press and hold the Control + Shift + Option keys and the “Power” buttons for 10 seconds, then release all four keys at once.
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Hold these keys until macOS restarts, then release them. Power up your Mac and immediately press the Option + Command + P + R keys.ģ. If these settings become corrupted, then it can cause a range of technical issues, so resetting your NVRAM may resolve the issues you’re experiencing with your external monitor.īefore we begin, be aware that resetting NVRAM will also reset your system settings and preferences, so you may need to spend some time reapplying these settings following an NVRAM reset.Ģ.
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Non-volatile random-access memory (NVRAM) is a small amount of memory where macOS stores all the settings it needs to access quickly, including some settings related to the display. Resetting NVRAM: Wipe Your Non-Volatile RAM
#Viewsonic driver for mac how to#
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Select the “Apple” logo in your Mac’s menu bar.Connect your Mac to the external monitor.Some users have also reported positive results by switching their monitor on and off while also removing and reattaching the cable:įinally, if you’re using a MacBook, MacBook Air or MacBook Pro, you can try disconnecting while also closing your Mac: Disconnect your adapter for 10 seconds.Let’s start with the simplest fix: turn it off and then back on again! There are a few different techniques you can try: If you’ve followed the above instructions and your external display still isn’t working correctly, then you can try the following fixes: 1. Follow the instructions here to make sure your external monitor is connected properly. Let’s get the obvious out of the way first and make sure your external monitor and Mac are set up correctly. Before We Begin: Are You Sure Everything’s Connected Correctly?