@mitu No, I am outputting at 1080p. Which was a pain. Whenever I try to change the resolution in raspi-config it just backs me out, so I had to set the resolution via terminal /boot/config.txt.

@mitu It was a Christmas present to me along with the Raspberry Pi, so I really don't know. In any case though, thank you very much for the help. I see that I was confused thinking I had assigned the "hotkey" button to the minus sign. Using the select and plus sign does indeed restore volume.