Why black squares and artifacts on the screen with a full freeze?

Question

laptops

Hello. The laptop is half a year old. Today, for the second time, I caught this picture: the

mouse does not move, the laptop does not respond to any buttons. you can turn it off by long pressing the power key.

This happened in the browser. I didn’t give it a special load, not counting the many tabs, but I almost always have it (usually even several browsers with so many tabs in each) and there were no glitches and artifacts. I also gave a good load, working in it in Photoshop'e - there were no problems either. And then all of a sudden this. I also can not say that he was too hot. I had somehow that it was heated, so there is nothing to compare. ssd warmed up after reboot to 40

ACER Aspire 5 A515-55-585U
i5 1035G1
memory 8GB
512GB SSD
Intel UHD Graphics

What could be wrong with it?

Answer 1

From the simplest: disable hardware acceleration in your browser settings. If the problem is solved in this way - rejoice.
From the less optimistic one: the browser does not work correctly with the screen, not excluding the failure of the driver. Try launching a different browser and see if the artifacts reappear. Did not appear - reinstall or update the version of the main browser. Appeared - try updating the video card driver.
It is unlikely that you have a case of a video card chip failure against the background of regular overheating, so I won’t dwell on this point. But still, note that overheating happens to you, and it would be good for you to understand the reason for their occurrence.

Answer 2

I have a similar thing happening on a working laptop, I assume the processor is defective. Especially considering that you have Ice Lake 10nm, with which everything is complicated.
I also have the screen flickering for about half an hour after rebooting after freezing, which further confuses me.
Run MemTest to discard the bad/loose memory option. Suddenly everything is easier.