Hitachi 43F501HG2W69 4K UHD - I don't have 4k when connected to a computer

A few days ago we bought a 43F501HG2W69 4K UHD TV. In addition to watching tv, we would like to be able to use it as a high resolution monitor for HP Elitebook 8570p laptop with Windows 10 64 bit installed.
To connect the laptop to the TV I bought a Display Port 1.2 => HDMI 4k cable, which according to the seller should allow 4k image transmission from the computer to the tv.
I was able to connect my laptop to the TV, I have picture and sound on the TV, but the picture is in Full HD, not 4k. I don't see any resolutions higher than HD in Windows screen settings. Whereas in the laptop specification: http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c02948215#N102F6 it is clear that the 8570p model through DisplayPort can send 2560 x 2048, 30-bit image color at 60 Hz, but somewhere else on the network I found that it also supports 4k, but at 30 Hz.
So I installed the AMD drivers (non-whql-64bit -now-radeon-crimson-16.2.1-win10-win8.1-win7-feb27.exe), but in the detailed settings "Properties (Digital Flat Panel)" I found the information: " Maximum reported resolution: 1920x1080 ", from which I understand that it is the tv that informs the card that there is a limit.
In the TV settings: Menu / Settings / Sources I also tried to change the Hdmi1 port mode from regular to advanced, but it had no effect.
So, what should I do to be able to enjoy a resolution higher than Full HD on 4k tv under Windows 10?
Regards
Grzegorz

Have you switched the image display only to an external screen (tv)?

Yes, I only set the external screen.
Regards
Grzegorz

gdn1 wrote:

model 8570p via DisplayPort can send 2560 x 2048 image, 30-bit color at 60 Hz

4K is 3840 × 2160, so the laptop doesn't support it.
You can still at most in the Radeon Card Settings, Screen tab try to create a custom resolution.

gdn1 wrote:

So, what should I do to be able to enjoy a resolution higher than Full HD on 4k tv under Windows 10?

Purchase a computer with a suitable 4K graphics card, or replace it with what is a graphics card that 4K supports.

sosarek wrote:

gdn1 wrote:

model 8570p via DisplayPort can send 2560 x 2048 image, 30-bit color at 60 Hz

4K is 3840 × 2160, so the laptop doesn't support it.
You can still at most in the Radeon Card Settings, Screen tab try to create a custom resolution.

Apparently yes, but in the resolution settings I do not see higher resolution than Full HD. I tried to add a non-standard 4k resolution, but without success. In the evening I will try to add 2560x2048.

And also: https://www.startech.com/be/AV/Displayport-Co...s/active-displayport-to-hdmi-adapter~DP2HD4KS

Quote:

The DP2HD4KS DisplayPort to HDMI adapter enables you to connect a DisplayPort-equipped desktop or laptop computer, such as the HP EliteBook 8570p / 8470p, to an HDMI display. This adapter is compatible with DisplayPort 1.2 & HDMI 4K @ 30 Hz and as a result can support video resolutions up to Ultra HD (4K) ...

So using this adapter you can have 4k with 8570p. Are they pulling customers?

Regards
Grzegorz

Added after 8 [minutes]:

KOCUREK1970 wrote:

gdn1 wrote:

So, what should I do to be able to enjoy a resolution higher than Full HD on 4k tv under Windows 10?

Purchase a computer with a suitable 4K graphics card, or replace it with what is a graphics card that 4K supports.

So even if the laptop supports a higher resolution than FullHD, but less than 4k, I will not get it on a 4k tv?

Or maybe you can buy some external 4k support card? Will it be good: http://www.i-tec.pl/?t=3&v=377? Are there any cheaper alternatives?

Regards
Grzegorz

This is not an adapter but an adapter / converter - firstly, secondly, it only writes that it supports resolutions up to 4K, not that it forces them or anything.

gdn1 wrote:

So even if the laptop supports a higher resolution than FullHD, but less than 4k, I will not get it on a 4k tv?

There are some minimum requirements for 4K.

gdn1 wrote:

maybe you can buy some external 4k support card? Will it be good like that?

It's an adapter, not a graphics card - you still need the right graphics card.
That I will not mention a powerful processor that will convert 4K encoding.

gdn1 wrote:

There are some cheaper alternatives

Cheaper? - rather many times more expensive and the price of such an external graphics card for a laptop, together with the casing and power supply may exceed the cost of $ 1,000 !!!
And the computer must have a Thunderbolt port.
Search under eGPU.

In my opinion, the game is not worth the candle.

gdn1 wrote:

sosarek wrote:

gdn1 wrote:

model 8570p via DisplayPort can send 2560 x 2048 image, 30-bit color at 60 Hz

4K is 3840 × 2160, so the laptop doesn't support it.
You can still at most in the Radeon Card Settings, Screen tab try to create a custom resolution.

Apparently yes, but in the resolution settings I do not see higher resolution than Full HD. I tried to add a non-standard 4k resolution, but without success. In the evening I will try to add 2560x2048.

I tried to set the resolution 2560x1444 as attached, but after clicking Verify I have a black screen. Maybe those sync settings that I took from the cap are incorrect?
Regards
Grzegorz

gdn1 wrote:

I tried to set the resolution 2560x1444 as attached, but after clicking Verify I have a black screen. Maybe those sync settings that I took from the cap are incorrect?

Another attempt with settings from CRU, but still without success - I still have a black screen after Verify ...
G.