Intel Core 5 120U graphics drivers for Win11 will not allow HDMI out at 75hz refresh rate at 1440p

[LenC]

I have a new ASUS Vivobook 14" Laptop X1404VAP-V14.C58256, with Intel Core 5 120U processor, which installs Intel(R) Graphics drivers in Windows 11 and will not allow me to use a refresh rate of 75Hz at 2560 x 1440 resolution to a Lenovo Q27q-10 external monitor, it keeps capping the refresh rate at 60Hz and has the 75Hz refresh rate choice with an asterisk which forces a distorted lower resolution when chosen.

I tried clean installs of Windows 11 25H2 and Windows 11 24H2 with various Intel Graphics drivers versions with the latest 8331 and 7080 and 7076 and 6127 etc and nothing allows 75Hz at 1440p.

I am able to do 1440p at 75Hz to this monitor using the same HDMI cable with older Intel chips like 12 gen i3-1220P on my other Asus vivobook laptops using Windows 11 24H2 and 22H2, which installs Intel UHD Graphics drivers.

Is the Intel Core 5 120U processor unable to do 1440p at 75Hz on an HDMI cable out to monitors?

[MUC]

Please create a Report for Intel Graphics Drivers and attach the output file here.

If you do not have the Intel Graphics Command Center on your computer, you can read here how to install it.

[LenC]

Here is attached report.

[MUC]

According to ASUS' technical specifications, the notebook has an HDMI 1.4 port that should support at least 297 MHz TMDS, provided it complies with the HDMI specification.

The monitor requires the following signal:

This should actually work.

The processor itself has an HDMI 2.0 interface (4K @ 60 Hz, 600 MHz TMDS). This means that ASUS has degraded the processor's capabilities by choosing certain components for the motherboard, and unfortunately, we don't know exactly what those limitations are.

Please try the driver that ASUS provides on its website. It's designed for your laptop.

If that doesn't help, you will need to contact ASUS Support to find out why it's not working.

[LenC]

Thanks for the responses. I did also try those drivers you linked from ASUS site and had no success with those either.

I will try ASUS support but I do not have high hopes.

[LenC]

On a whim I tried a Ubuntu 24.10 usb boot drive I had lying around and this allows me to do 2560 x 1440 (16:9) at 74.60 Hz refresh to my Lenovo monitor, so perhaps this rules out any ASUS motherboard issue and points more towards a Win 11/driver issue?

[MUC]

If Linux can output the signal, then there's a problem with the interaction between the ASUS hardware and the Windows driver. Theoretically, it could even be a problem with Windows itself.

However, since laptops always use technology customized by the Original Equipment Manufacturer (=OEM, in this case ASUS), I'd recommend that you contact the OEM.