I have a Hp pavilion x360 m1. M1-u001dx. The keyboard on my convertible machine has the Y, T, and Mute key fails to respond to the keystrokes. It's only these three keys. After randomly typing a few other letters and numbers, they all of a sudden begin to work. But after a few hours or so, The three will stop working again until I begin tapping random keys. It's weird.
The machine also randomly cuts off right in the middle of web browsing and/or watching videos and wont turn back on immediately when I press the power button. The right half of the machine gets really hot on the bottom (but not the left half).
I've had this machine for less than a year. It still has tons of free space on it and hasn't been dropped, banged up or physically damaged but it's behaving weirdly all of a sudden.