The laptop goes to sleep at the slightest physical movement, what's the problem?

Question

laptops

Good afternoon
A few months ago, the screen began to flicker on my laptop, only when the laptop lid moved, it flickered quite rarely and I didn’t bother.
After a month or two, the problem began to worsen: now the laptop, at any slightest physical movement, first fades once and goes into sleep mode.
The laptop is usually on my knees, so it moves often and cuts down often, exhausted all the nerves.
What could be? I somehow disassembled it when I changed the thermal paste, vacuumed the laptop + all the cables were poked out and reconnected. What could be? Slider or...?

Answer 1

Lid closing sensor. Or its cable / connector.

Answer 2

I had the same issue. In my case, the lid closing sensor / Hall sensor did not work correctly. Because of this, at the slightest movement of the screen, the laptop went into sleep mode. The laptop thought that the lid was closed and went to sleep according to the settings in the "Power Management" section and there is no need to put "When the lid is closed" on the action