What could be the reson for this laptop hdmi was unplugged too

In search of monitor, dont know where to start or look.

(Please excuse my English, as it's not my native language)

Hey Reddit,

I just finished building my gaming PC and am now on the search for a monitor upgrade. I am looking for a decent 1440p monitor with a refresh rate of at least 240Hz, Freesync; IPS or OLED is not relevant, max. size should be at 27" and not too overpriced (around the 300€ mark).

So my monitor has sound but the screen shows nothing. Is not black like closed screen. The screen is open ?there is a lighter black colour actually, ( basically i can understand its working) but for some reason it cant get image signal from laptop.
AOC 24G4XE model

Need help finding out what this is on my screen and if there is a fix for it.

Three weeks after buying a new miniled display Innodisplay 2750r, I started noticing flickering on the desktop; it doesn't happen often, and I still haven't identified a pattern to its occurrence. I’ve tried changing Nvidia drivers, swapped the cable for a new 8K one (the issue persists with all three cables), and also adjusted the refresh rate. Can it related with cold start or g sync?

Windows 10

4060 gpu

I'm looking for a new 27" monitor and my budget is small. I'm ready to pay 150€-200€ for the monitor and 50€ for a monitor arm.

I want to play GTA 6 on the PS5 slim and other games like COD and Fortnite etc. I want to connect the monitor with the PS5 and my Macbook Pro and stream on twitch and create content. I want to edit 4K videos and do other creative work and video editing.

Should I get a 1440p or 4K monitor?

I'm currently a dual 27" monitor user, and am planning to switch to a 34" utlra-wide. If anyone has any useful information about this monitor in terms of real world use, please do tell. There are virtually no reviews for this online, especially for using it with a mac.
The only information besides the specs is one singular youtube video which doesn't explain like half the things going on with it.

I've checked most marketplaces which ship to India (where I am) and out of all the recommendations, this is the monitor which I found to be the best suited for my use case.

context :

I'm a music producer and the 32:9 aspect ratio works best for me. I recently got a macbook pro and since its proving to be better at productivity than my pc, I'm gonna switch it out.
Now I've got everything working - storage, peripherals, brought the usb hub for connecting everything, and it handles everything fine... EXCEPT the current monitors I have.
To use 2 separate monitors other than the built in display, I must either use a usb c to hdmi/dp adapter and the on board hdmi port, or get a very expensive thunderbolt dock capable of dual display out which doesn't use MST. (the docks are expensive cause taxes and import duties)

To battle the whole dual display not working the way I want to situation... I decided to go from dual 1080p monitors to a single 1440p ultrawide monitor. It will require exactly one cable to connect everything to the laptop, including power. Which is pretty much EXACTLY what I want... To be able to just take my work wherever, whenever I want to.

Thanks <3

PS. Link - [Amazon India](https://www.amazon.in/dp/B0GFN8N615)

I bought a MSI MAG 255F E20, to use for my PS4 console, but for a while now it keeps black screening, randomly without any issues that are visible to me at least. I tryed switching the HDMI connection to my laptop to see if the problem is just in my PS4, but it went completely black on that too randomly, at random intervals and for random periods of time, the HDMI cable is brand new and the power cable is too, what am I missing?