Has anyone encountered the same problem with musical instrument keys on laptops?

[aymam]

In-game musical instruments when playing games on a laptop can't use 4 fingers? And for 3 fingers like u, p n, you can't press them at the same time (there are some other 3-finger combinations... same problem)? (instrument key: y u i o p h j k l .... )

[◬ ☥ 𝕄𝕚𝕝𝕜 ☥ ◬]

Look up keyboard rollover, might be that. Probably is considering it's a laptop.

[aymam]

☥ 𝕄𝕚𝕝𝕜 ☥ maybe you are right after checking my laptop, it has a 2KRO keyboard so that's really a problem, maybe I think I should buy a separate keyboard or another tool (or way) to deal with it this problem

[Fiery_Emily]

This is a hardware limitation of your keyboard. Unfortunately, the only solution is that you must purchase a better keyboard that does not have this limitation.

To be more specific:

In order to save money, keyboard manufacturers often put many keys on the same "circuit" of sorts within the wiring of the keyboard. This prevents multiple keys in the same region of the keyboard from being pressed simultaneously. Sometimes it even prevents more than 2 keys at all from across the whole keyboard being pressed at once. Often the shift, ctrl, and alt keys are not within this limitation, so you can hold shift and press 2 other keys at once and it will still work fine.

Even high-end gaming keyboards often have a similar hardware limitation, although the cap is much higher so that it is unlikely to be reached during the normal course of gaming.