I'm having this issue since some kernel releases but I never took the time to report it since it's not so severe... Anyway, if I plug my mouse (a Logitech G900) the device gets detected immediately but starts to work only after ~6 seconds as you can see from the log. The mouse is connected via USB cable (without the wireless receiver). I have this issue on a ArchLinux box (running kernel 5.3.8-arch1) and also on a Fedora 31 box. NOTE: Also reported here: https://bugzilla.kernel.org/show_bug.cgi?id=205449 LOG: nov 06 08:29:50 tesx-pc kernel: mousedev: PS/2 mouse device common for all mice nov 06 08:29:50 tesx-pc kernel: logitech-hidpp-device 0003:046D:C081.0007: Device not connected nov 06 08:29:45 tesx-pc kernel: logitech-hidpp-device 0003:046D:C081.0006: input,hidraw5: USB HID v1.11 Mouse [Logitech Gaming Mouse G900] on usb-0000:0f:00.3-1.2/input0 nov 06 08:29:45 tesx-pc kernel: input: Logitech Gaming Mouse G900 as /devices/pci0000:00/0000:00:08.1/0000:0f:00.3/usb5/5-1/5-1.2/5-1.2:1.0/0003:046D:C081.0006/input/input36 nov 06 08:29:45 tesx-pc kernel: hid-generic 0003:046D:C081.0007: input,hiddev4,hidraw6: USB HID v1.11 Keyboard [Logitech Gaming Mouse G900] on usb-0000:0f:00.3-1.2/input1 nov 06 08:29:45 tesx-pc kernel: input: Logitech Gaming Mouse G900 System Control as /devices/pci0000:00/0000:00:08.1/0000:0f:00.3/usb5/5-1/5-1.2/5-1.2:1.1/0003:046D:C081.0007/input/input33 nov 06 08:29:45 tesx-pc kernel: input: Logitech Gaming Mouse G900 Consumer Control as /devices/pci0000:00/0000:00:08.1/0000:0f:00.3/usb5/5-1/5-1.2/5-1.2:1.1/0003:046D:C081.0007/input/input32 nov 06 08:29:45 tesx-pc kernel: input: Logitech Gaming Mouse G900 Keyboard as /devices/pci0000:00/0000:00:08.1/0000:0f:00.3/usb5/5-1/5-1.2/5-1.2:1.1/0003:046D:C081.0007/input/input31 nov 06 08:29:45 tesx-pc kernel: hid-generic 0003:046D:C081.0006: input,hidraw5: USB HID v1.11 Mouse [Logitech Gaming Mouse G900] on usb-0000:0f:00.3-1.2/input0 nov 06 08:29:45 tesx-pc kernel: input: Logitech Gaming Mouse G900 as /devices/pci0000:00/0000:00:08.1/0000:0f:00.3/usb5/5-1/5-1.2/5-1.2:1.0/0003:046D:C081.0006/input/input30 nov 06 08:29:44 tesx-pc kernel: usb 5-1.2: SerialNumber: 0E6C36503233 nov 06 08:29:44 tesx-pc kernel: usb 5-1.2: Manufacturer: Logitech nov 06 08:29:44 tesx-pc kernel: usb 5-1.2: Product: Gaming Mouse G900 nov 06 08:29:44 tesx-pc kernel: usb 5-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 nov 06 08:29:44 tesx-pc kernel: usb 5-1.2: New USB device found, idVendor=046d, idProduct=c081, bcdDevice= 1.03 nov 06 08:29:44 tesx-pc kernel: usb 5-1.2: new full-speed USB device number 5 using xhci_hcd
