01-14-2020, 04:54 PM
(This post was last modified: 01-14-2020, 05:14 PM by venix1.
Edit Reason: typo correction
)
(01-12-2020, 05:32 AM)wasgurd Wrote:(01-12-2020, 04:50 AM)Feakster Wrote: I've found that I get the high pitch whine when a USB-A peripheral (such as a mouse) is plugged in.
I can confirm a different noise with/without USB plugged in.
Just noticing this for the first time, here's some additional testing and observations related to my case.
- On battery power, very very light high pitched noise. Barely perceptible(ear on keyboard)
- Plug in USB-A(yubikey), volume increases to a noticeable level.
- Plug in barrel jack with USB-A. Volume increases more.
- Swap to USB-C. Same volume as 3.
- Tried another power supply for barrel and USB-C, as well as another USB-C cable. No notable changes, same as 3, 4
- All tests, with Manjaro running from SD. Being the first time I've noticed it and the first time not using the stock OS, I switched back and tested again.
- All prior tests produced no perceptible noise when running stock Debian from eMMC.
