i have an issue with my chromebook where the volume control will pop up out of nowhere at random intervals and start sliding my volume up and down on its own and changing my mic and speaker settings. sometimes i make videos for youtube and sometimes i'll make a video only to find out that the mic setting was flipped and i didn't get any sound. stuff like that. i've tried every type of reset and it still happens. i hope someone can give me some advice. my warranty has expired. i'm on an hp chromebook 11 G5. thanks.