Why does my dual display not fill the screen on the 2nd monitor?

Hi,

I believe you want to use your monitor's native resolution. The thing is that not every laptop is with the same screen resolution. If your laptop's max resolution is 1366x768 and you select 'Duplicate' as a projection setting, that's the max you're going to get on both screens. Although you should be able to choose 'Extend' instead, that way you can use both of your screens, have more screen real estate and your monitor will use it's native resolution (1920x1080 for example). Or if you want to use the external display solo, you may select **'Second screen only'**option.

To quickly select projection modes, press Win+P on your keyboard and select your preferred setting. To fine tune, right click on your desktop and select Screen resolution or Display settings.

Hope it does the trick. In case of any issues, I'm happy to help you more, when needed. If it worked, please mark the answer as helpful.

I tried Extend, but that moves one image to the second monitor and I can no longer see it on the laptop.

What I was trying to do was to show some people a series of screen we were looking at, but I was on one side of the table and they were on the other.  I was  going to view the screen on the laptop and talk about it and respond to questions, and they were going to just look at the monitor, so we both needed to see the same screen.  Extend doesn't do this.

I think you did answer the question:  my Dell at 1366 x 768 is less than my Samsung laptop, so while I get a full screen on the Samsung connected, I only get what Dell can do when it is the source.  Ahhh ... such is life!

Thanks for providing the clue!

I see... Well that's how it is yeah, no problem :) If PowerPoint is an option for you and your Dell laptop, you could use a feature called Presenter View. It works in 'Extend' mode and basically shows the current slide and the following slide on your laptop screen, while on the external display, slides are displayed in full screen mode in monitor's native resolution. Just another tip ;)

I tried Extend, but that moves one image to the second monitor and I can no longer see it on the laptop.

What I was trying to do was to show some people a series of screen we were looking at, but I was on one side of the table and they were on the other.  I was  going to view the screen on the laptop and talk about it and respond to questions, and they were going to just look at the monitor, so we both needed to see the same screen.  Extend doesn't do this.

I think you did answer the question:  my Dell at 1366 x 768 is less than my Samsung laptop, so while I get a full screen on the Samsung connected, I only get what Dell can do when it is the source.  Ahhh ... such is life!

Thanks for providing the clue!