Display Cap at 30 fps but Dota 2(100 fps) is not

[Sealth]

Hi guys, I bought my new display which cap at 144hz refresh rate so i hook it up with my laptop using HDMI cable then everything on the new display cap at 30hz refresh rate i try to run games and other thing all is cap at 30hz even my laptop could push more then 120hz (fps counter from GeForce experience), BUT only dota 2 in game resolution setting that say 3440x1440 100hz allow me to do 100+ fps (it look smooth as silk conpare to other program even my desktop is cap at 30hz). So i'm having a trouble here can anyone help me solve this mystery plz i really need some help 

Thnak You

[PlayStation 2]

Lemme get something straight: your laptop can push out 3440x1440 at 100Hz but only through Dota 2? 

Just sounds like you need to manually set the refresh rate of your display more than anything if Dota can gather that your monitor taps out at that.

[Kilrah]

What laptop is it?

Sounds like it might not have HDMI 2.0, and thus not be able to output more than 30Hz at that resolution.

[Sealth]

Just now, handymanshandle said:

Lemme get something straight: your laptop can push out 3440x1440 at 100Hz but only through Dota 2? 

Just sounds like you need to manually set the refresh rate of your display more than anything if Dota can gather that your monitor taps out at that.

Im using ROG Scar III i7 9750H + RTX 2060(Laptop) and yes in only work in Dota 2 after i set the in game resolution to 3440x1440 100hz (I can tell the different i smooth as silk) but even when i'm on my desktop it only capp at 30hz even the OSD say it on 100hz (Im using HDMI cable) everything look laggy when i move my folder window around it is doing Mirror image (i'm thinking around 30hz not even running at 60hz). I also set the display setting to 100hz too still run at 30hz. You know what happen?

[PlayStation 2]

Just now, Sealth said:

when i move my folder window around it is doing Mirror image

So are you mirroring your laptop's display with your monitor? 

Could potentially be your monitor's settings being weird, too.

[Sealth]

Just now, Kilrah said:

What laptop is it?

Sounds like it might not have HDMI 2.0, and thus not be able to output more than 30Hz at that resolution.

I think it already 2.0 it worked in dota2

[Sealth]

Just now, handymanshandle said:

So are you mirroring your laptop's display with your monitor? 

Could potentially be your monitor's settings being weird, too.

i'm using the "Second Display Only" setting

[Kilrah]

Set refresh rate correctly in Windows display properties?

 

Also sometimes mirror is limited to the least capable display, need to use single or extended display to have full capabilities.

[Sealth]

Just now, Kilrah said:

Set refresh rate correctly in Windows display properties?

 

Also sometimes mirror is limited to the least capable display, need to use single or extended display to have full capabilities.

Thank You Dude!! it working!! you save my day im on "Second Display Only" at first now im using "Extend Display" and choose monitor display setting now both are at 100hz+

Thank again :)