You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

User profile for user: jayant180
jayant180 Author
User level: Level 1
8 points

External display on imac - changing resolution

Hi - I have a 27" 5K 2019 iMac to which I have now connected a Samsung monitor - S24E450B 24-Inch Monitor (16:9) - as an external display. The optimal resolution for this monitor is 1920 x 1080, but I am unable to get the monitor to change to this setting. When I use the iMac's System Preferences -> Displays for the external display, it only shows 2 elections under the "Scaled" bullet - (i) 1080 x 1920; and (ii) 900 x 1600.

Any suggestions on how I can get the Samsung display to its optimal resolution of 1920 x 1080?

iMac 27″, macOS 10.15

Posted on Jun 20, 2020 8:15 AM

Reply
Question marked as Top-ranking reply
User profile for user: BDAqua
BDAqua
User level: Level 10
245,585 points

Posted on Jun 20, 2020 8:34 AM

Your screen is Rotated 90° to Portrait mode, 1080*1920 is 1920*1080 but rotated.

View in context

Similar questions

5 replies

External display on imac - changing resolution

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.
Learn more Sign up