Hardware Drivers :: Some Keys Stop Working For Some Time?

In any case, as the topic title says, some keys on my laptop occasionally stop working for some time, before returning back to normal. Sometimes simply pressing the key several times makes it work, sometimes holding it pressed for ten seconds or so works... Sometimes neither of these works. Occasionally, the key starts working it I press it in rapid succession with a key that does work. For example, pressing I, a non-working key, instantly after pressing J, which works perfectly. Sometimes I simply just randomly press keys on my keyboard until the non-working keys start working again. Backspacing seems to make it easier for them to go back to 'non-working state', although this may be just my imagination.

When any one of the keys that sometimes stop working stops working, none of those keys works. And when one starts working again, all of them start working. Although they may return back to non-working state right away. Although it might be just coincidence, and it doesn't actually work that way.

An incomplete list of the keys that occasionally stop working:
(Left) Ctrl, I, O, 2, 7.

There are others, I believe, at least one more number, but I have no way to check until they stop working. And at the time of typing this post, they seem to be working strangely well.Also, the keys are (almost?) always in the 'non-working state' when the laptop wakes from sleep mode and I have to input the password. Luckily, it offers the On-Screen Keyboard option, which, by the way, works perfectly.