How to fix humming sound while using touchpad? (and calibration touchpad) Nitro 5

Ace10

Hello other users,

Recently bought acer nitro 5 and when i use my headphones i dont have any problem. But when i use my bigger speakers through a jack from 3 meter i suddenly hear a humming/static sound on the background (kinda sounds like a hdd writing). The sound get worse/more static when i use my touchpad its very odd. I upgraded the drivers even installed ones from acer itself, still the same problem. I didnt had this issue with my previous laptop. Does anyone have any advise or the same problem?

(Also i noticed the touchpad has some kind of lag, as if its not calibrated properly, also played with the drivers and some settings still the same feeling. also anyone any advise about that?)

Thank you in advance!

JackE

Do you also hear the noise when the laptop charger is unplugged? How are the bigger speaker powered? Jack E/NJ

Ace10

JackE said:

Do you also hear the noise when the laptop charger is unplugged? How are the bigger speaker powered? Jack E/NJ

unplugged, way less but i still hear it. The speakers are powered by an amplifier. (jack E/NJ??)

JackE

AC-powered amplifier? Can you test the speaker amp on batteries alone? Jack E/NJ

Ace10

JackE said:

AC-powered amplifier? Can you test the speaker amp on batteries alone? Jack E/NJ

yes it is and no i cant..

JackE

Sounds like what's called beat frequency interference between the charger's controller, the laptop's own amps and the speaker's amps. It can get messy, hard to avoid, and variable depending on system/cpu loads. Not much you can do about it especially if the speakers are wired to the laptop jack instead of  BT wireless. You can probably substantially reduce the noise by powering the charger and the speakers from isolated circuit AC receptacles. Jack E/NJ

Ace10

JackE said:

Sounds like what's called beat frequency interference between the charger's controller, the laptop's own amps and the speaker's amps. It can get messy, hard to avoid, and variable depending on system/cpu loads. Not much you can do about it especially if the speakers are wired to the laptop jack instead of  BT wireless. You can probably substantially reduce the noise by powering the charger and the speakers from isolated circuit AC receptacles. Jack E/NJ

interesting, so i would have this problem with any acer nitro 5? i mean my previous laptop didnt had this problem (might have been using a different frequency?) thnx for you advise tho:)

JackE

>>>so i would have this problem with any acer nitro 5?>>>

Not just any Nitro5 models. There are many different Nitro5 models/submodels with different CPU/GPU combos and frequencies. But for the same AN51x-xx model/submodel with the same CPU/GPU pair and HDD/SSD and the same external speaker setup, I'd guess yes. However, other models might also give you beat frequencies that are different --- maybe more or less acceptable to you. Basically a c rap shoot. If it were mine, I'd try different external speakers, preferrably BT wireless, from a vendor who has a good returns-no-questions-asked policy if I'm not satisfied.   Jack E/NJ