I like watching Mac address from time to time, along with all the other suggestions in the coents(especially dankpods!).

One of arch's things is it's a rolling release distro, which means that every bit of arch is updated as soon as an update is available for it. Mint on the other hand tests the package updates before they release it to make sure its stable, but this results in the packages being out of date.

I used to encounter this problem all the time when I use arch. For me, this problem went away when I installed openrazer and razergenie for my mouse.