Before you begin
Make sure your Mac is running the latest version of macOS.
If your display is blank or not detected
Try these steps if you don't see an image on your display.
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Reformat it to MAC, and transfer all the files. My hard drive isn’t showing up at ALLL now. After trying and trying finally an icon pops up on the desktop. There’s no yellow USB icon anymore labelled “My Passport” but a silver USB with what looks like a. My Passport Not showing up. WD External Drives External Drives for Mac. Caseyz October 15, 2015, 1:29am #1. I’ve had the 320 WD My Passport for about 3 months, its been stationary on my co-workers computer that entire time. He ejected the disk–unplugged the drive and gave it to me to transfer some files onto.
Check how many displays you can connect
To find out how many external displays your Mac supports, check its technical specifications page or use the Support tab in About This Mac:
- Choose Apple menu > About This Mac.
- Click the Support tab, then click Specifications.
- On the webpage that appears, the number of displays your Mac supports appears under Video Support or Graphics.
Check your cable or adapter
Aug 30, 2021 WD My Passport Does Not Show up due to Virus Attack. As mentioned above, an external hard drive must be formatted properly so that it can be detected by Windows or Mac OS. However, sometimes, virus infection might corrupt the file system of WD my passport external hard drive and make it not show up when you connect the external to your computer. Turn On Your Mac And Log In. Plug in your WD My Passport’s USB cable into its Micro USB B. My Passport Not Showing Up When Plugged In Mac I Have; My Passport Not Showing Up When Plugged In Mac I Have. Once you are sure that the WD My Passport is corrupted and becomes inaccessible, you had better stop performing any further operation to this external and then you can use data recovery software to get back lost data.
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Disconnect the cable from your external display from your Mac, then reconnect it. If the cable from your external display doesn't connect to the ports on your Mac, you can use a Thunderbolt 3 or USB-C adapter.
If your display appears blurry
If images or text on your display appear blurry or pixelated, check the resolution and brightness of your display.
Adjust the resolution
- From the Apple menu, choose System Preferences.
- Click the Displays icon.
- Press and hold the Option key while you click Scaled to see additional resolutions for the second display.
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If you're using more than one display, and you can see the image on one of the displays, you can also use Displays preferences to check for connected displays.
If the expected resolution doesn't appear for your display, check the specifications page to see what your Mac supports.
Adjust the brightness
To adjust the brightness of your Apple display, press the increase brightness key or the decrease brightness key on your keyboard.
You can also use the brightness adjustment for each connected display in System Preferences > Displays.
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Displays not made by Apple sometimes have brightness and color adjustments built into the display. Check the documentation for your display to see if it includes built-in controls.