Macbook pro external display resolution issue

Question

Macbook pro external display resolution issue

Hi,

I am using my macbook pro (2019, 13inch) model with my external screen (LG 22ES). Because my MBP doesn't have dedicated HDMI, I am using apple's USB-C Digital AV Multiport Adapter (https://www.apple.com/shop/product/MUF82AM/A/usb-c-digital-av-multiport-adapter) and using belkin's HDMI to HDMI cable

My problem is, my LG external screen 1920x1080 resolution screen. However my macbook is unable to recognise that resolution. It is stuck with 1080p or some other bunch of resolutions (which come out when I use option key to scale the resolution)

Somebody in stack over flow mentioned that, Apple's dongle won't support 1920x1080 resolution. Is that true?

I tried SwitchResX4 and other tools to adjust my screen resolution but so far unsuccessful.

Thanks in advance for any help.

Regards,

Aravind

Posted on Aug 27, 2019 10:47 AM

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Answer 1

Sep 7, 2019 8:47 AM in response to chuck_3rd

Hi Alex,

Yup, I had tried. However I came to know that there were multiple people had similar problem. Finally I had solved using this blog

https://www.mathewinkson.com/2013/03/force-rgb-mode-in-mac-os-x-to-fix-the-picture-quality-of-an-external-monitor

Thank you all for your support :)

Regards,

Aravind

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Answer 2

chuck_3rd

Community Specialist

Sep 3, 2019 8:01 PM in response to Aravind_Chakravarti

Hi Aravind_Chakravarti!

Thanks for your reply. Since the resolution of the built-in display on the MacBook Pro is higher than 1080p, the image will be too large for your monitor and cannot display the entire desktop. You must choose the "Default for display" option for the entire image to fix on your external display.

Cheers!

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Answer 3

Leanne_68

Community Specialist

Aug 28, 2019 12:41 PM in response to Aravind_Chakravarti

Hi Aravind_Chakravarti!

I understand that you have some concerns about the resolution of your external display with your Mac, and I'm happy to help. 1920x1080 is actually 1080p resolution, so if you choose the "Default for display" option, it should default to 1080p which is the maximum resolution for your monitor.

Cheers!

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Answer 4

Aug 31, 2019 11:08 AM in response to Leanne_68

Hi Starr,

True. 1920x1080 should be 1080p. But my external monitor is not showing the display correctly. Look at below pictures,

You can see that my built in display works perfectly. But my external display has lost the aspect ratio (you can observe doc and top menu bar)

I tried all the available resolutions..

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Macbook pro external display resolution issue

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