Why does the monitor show a terrible picture?

Question

Iron

Hello.
I bought a 24" monitor Samsung F24T354FHI monitor. In the store, the consultant connected the monitor to the system unit. Top picture. I brought it home, connected it to my system unit and ... was unpleasantly surprised. The monitor shows very blurry, fuzzy images. lice: faded and some kind of jagged.It seems that there are no honest 8 bits and IPS matrix.Against it, my laptop with a TN + film matrix is ​​just space!
What I tried to do.I connected the monitor via VGA and 2 different HDMI Result - 0.

Tried to play with monitor settings and display settings in Windows 10. Same result. 
Perhaps the whole point is in a discrete video card, or rather in its absence? I have an Intel Core i5-10400 processor with integrated Intel UHD Graphics 630 (works on an ASUS PRIME H510M-K motherboard). Although before that I connected a 27-inch monitor with a resolution of 2K to this very system unit, and the picture was great ... 

What else to say ... The drivers for the motherboard are fresh. Maybe you need to look for some drivers for the CPU?

Oh yes ... I connected the monitor not only to the system unit, but also to the mentioned laptop. The image is terrible in both cases.
Basically, I don't even know what to do. Please help me solve the problem...

Answer 1

Reset the monitor to default
And try to check the picture on a liveCD.. for example with ubutnu or linux mint

Answer 2

with a telecom 24 "there was a problem with fonts - the reason is that it does not pull more than 30Hz via hdmi

Answer 3

There are not so many options:
1. Cable, video card, or something else from your equipment.
2. While transferring/installing the monitor, press one of the buttons on it, which turns on some anti-aliasing or vice versa (sharpness). I saw this myself recently - the buttons are from below, the person took the monitor to move it a little, pressed the button, and the monitor turned on the high-sharp mode, the fonts look scary, and the image itself too. So for starters, reset the settings in the monitor itself.
If the reset did not help, and it shows just as poorly on different computers, take it to the warranty store. Of course, if different cables were used.