On Sat 07 Apr 2018 at 14:38:53 (-0400), songbird wrote: > i have an USB keyboard, which once in a while goes > useless. it is a fairly new device and should not be > defective, but i'm not sure how to tell if this is a > problem from the device or from the kernel or ?
Try googling usb keyboard autosuspend. You should get hits for checking/setting /sys/bus/usb/devices/*/power/autosuspend (ephemeral) and the archlinux wiki explaining udev rules (persistent). Cheers, David.