Question My monitor is 100hz WQHD 4k, but my laptop shows only 60hz ?

[thestryker]

Looks like it does DP over USB so that'd mean an adapter to go from USB-C to HDMI, but I think this would be doable.

 

[hakaiii]

Can’t believe I missed this, but the spec sheet you linked to says the laptop has DisplayPort 1.4. Is that correct?

my laptop doesn't have a display port. There are many types of laptop specs in this page (https://support.hp.com/us-en/document/ish_6302265-6302374-16), the spec sheet shows the specs of all the processor types (i7p and i5u types), mine is i5p, which has basic iris graphics and no display port. May be for the i7 laptop of the same series as mine has it.

 

[hakaiii]

my laptop doesn't have a display port. There are many types of laptop specs in this page (https://support.hp.com/us-en/document/ish_6302265-6302374-16), the spec sheet shows the specs of all the processor types (i7p and i5u types), mine is i5p, which has basic iris graphics and no display port. May be for the i7 laptop of the same series as mine has it.

Can’t believe I missed this, but the spec sheet you linked to says the laptop has DisplayPort 1.4. Is that correct?

And exactly in my laptop's spec page (when searched with my laptop serial number) showed that my laptop has 2.1 HDMI, and no display port.

 

[Aeacus]

Sigh...

The specs page you linked, does have different CPU, RAM and storage configurations, but all variants do have GeForce MX550 dedicated GPU in it,
link: https://support.hp.com/us-en/document/ish_6302265-6302374-16

So, you should have dedicated GPU in there as well, besides iGPU.
In terms of iGPU, there are two options;
* Intel Iris X - When you have Core i5/i7 and 2 sticks of RAM
* Intel UHD - When you have Core i3 or 1 stick of RAM

You also posted all the options of Intel graphics command center, where the three highest options are:

3440 x 1440 (60p Hz)
3440 x 1440 (1 oop Hz)
3840 x 2160 (60p Hz, 4K)

Now, the monitor you have, is 3440x1440 (ultrawide 2K) and 100Hz. There is clearly the exact option for it.

And exactly in my laptop's spec page (when searched with my laptop serial number) showed that my laptop has 2.1 HDMI, and no display port.

Your laptop does have DP 1.4 port, but not dedicated one, but instead combined inside USB type-C port;

(1) USB 3.2 Gen 2 Type-C port; 10 Gbps signaling rate (USB Power Delivery, DisplayPort™ 1.4, HP Sleep & Charge)

To use DP 1.4, you need USB type-C to DP adapter cable. E.g this one,
amazon: https://www.amazon.com/UGREEN-DisplayPort-Thunderbolt-32-4Gbps-Compatible/dp/B0C4DB8MLL?th=1