Nitro16 (AN16-42-R5A3) crackling, scratching at internal speaker when notebook is charged via USB-C

meistercraft
meistercraft Member Posts: 2 New User
edited November 13 in Nitro Gaming

Hello everyone,

I recently purchased this laptop: Acer Nitro16 (AN16-42-R5A3)

  • Ryzen R7-8845HS
  • 16GB
  • 1TB SSD
  • Geforce RTX4070
  • Windows 11 Home

I have encountered a curious problem:

The notebook comes with a 250-watt power adapter. When the laptop is charged with this adapter or is running on battery, the sound is without any issues.

However, when I connect a 60-watt PD powerbank or a 60-watt PD power adapter to the USB PD port, Windows naturally informs me that it is charging "slowly." Nevertheless, it switches to "power adapter" mode. So far, so good.

But in this configuration, I constantly experience significant crackling or scratching noises (as if the speakers are extremely overdriven) through the internal speakers.

Normal listening is not possible.

I have tested with various power banks, cables, and power adapters.

There is no problem with external BT speakers; everything works perfectly.

I understand that a 60-watt power adapter is not "compliant," but I am puzzled by the error pattern. What does the crackling or scratching of the speakers have to do with charging via USB?

I have already uninstalled the Acer software and installed a "fresh" Windows. The same problem persists. It seems to be a hardware issue.

Has anyone else observed this?

[Edited the thread to add model number to the title]