Dual monitor lag

[fuzzytheman]

Hello, I recenglt got a Dell S2340M ‑ 23" IPS LED‑backlit LCD monitor to use at home. I installed all the drivers that came with it on my Lenovo Thinkpad yoga. I am connecting my thinkpad to the monitor with a mini hdmi to dvi-d cable. When I open a new window on the monitor there's a lot of screen tearing and I can feel the frames drop. It also happens when I move the window around or I play a video. The thinkpad has an Intel i5 processor with 4400 hd graphics card.
I've seen threads somewhat like this but they are all for gaming computers with nvidia graphics cards, which I don't have.
If anyone has a solution Id be very grateful.

 

[Darkbreeze]

Try adjusting the refresh rate for the external monitor using display properties in control panel or right click the desktop and select screen resolution and then go into the advanced settings.

You may need to go to the Lenovo website and make sure you have the most recent video and chipset drivers installed. Drivers that came on disk may be much older than current versions as you don't know how long ago the unit you purchased sat in a warehouse.

 

[fuzzytheman]

Try adjusting the refresh rate for the external monitor using display properties in control panel or right click the desktop and select screen resolution and then go into the advanced settings.

You may need to go to the Lenovo website and make sure you have the most recent video and chipset drivers installed. Drivers that came on disk may be much older than current versions as you don't know how long ago the unit you purchased sat in a warehouse.

This seemed to work until i put my display into extension mode and tried to run a movie and a game on it. The monitor began screen tearing and lagging a lot.
When i put it on duplicate it works fine, but I'd rather not have to keep it like that.

 

[Darkbreeze]

The GPU in your laptop is likely not capable of performing decently with displays on both screens. It's a VERY basic graphics adapter. You probably need to select the external monitor and set it to "show desktop on this display only" or reduce the resolution when using the external monitor. The GPU functions on that unit are built into the CPU, it has no separate graphics card.