My mouse isn't detected, I believe due to this commit.
The anomaly occurs on an HP Slimline and a Dell. The Dell gets these messages on the console: ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 (disconnected) ugen0.5: <PixArt Dell MS116 USB Optical Mouse> at usbus0 The HP has this on the console" hw.bus.devctl_nomatch_enabled: 0>1 (something like that) Both mice are usb.