Hi folks, since 4.18 my composite mouse/keyboard doesn't work correctly anymore. Usually the device can switch between keyboard and (gyroscopic) mouse mode, but with the new kernel the mouse movements seem to generate cursor up/down events in parallel, regardless of the mode the mouse is in. vendor/product id is 2389/00a8. If I plugin the USB receiver, then 4.17.17 writes this into kern.log: Aug 19 13:12:24 porky kernel: [ 58.780112] usb 1-8: USB disconnect, device number 5 Aug 19 13:12:24 porky kernel: [ 59.051691] usb 1-8: new full-speed USB device number 6 using xhci_hcd Aug 19 13:12:24 porky kernel: [ 59.180180] usb 1-8: New USB device found, idVendor=062a, idProduct=1a9e, bcdDevice= 1.00 Aug 19 13:12:24 porky kernel: [ 59.180183] usb 1-8: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Aug 19 13:12:24 porky kernel: [ 59.180184] usb 1-8: Product: RF USB Controller Aug 19 13:12:24 porky kernel: [ 59.180186] usb 1-8: Manufacturer: U-COMM Aug 19 13:12:24 porky kernel: [ 59.182692] input: U-COMM RF USB Controller as /devices/pci0000:00/0000:00:14.0/usb1/1-8/1-8:1.0/0003:062A:1A9E.0004/input/input16 Aug 19 13:12:24 porky kernel: [ 59.234586] hid-generic 0003:062A:1A9E.0004: input,hidraw0: USB HID v1.10 Mouse [U-COMM RF USB Controller] on usb-0000:00:14.0-8/input0 Aug 19 13:12:24 porky kernel: [ 59.236704] input: U-COMM RF USB Controller as /devices/pci0000:00/0000:00:14.0/usb1/1-8/1-8:1.1/0003:062A:1A9E.0005/input/input17 Aug 19 13:12:24 porky kernel: [ 59.288632] hid-generic 0003:062A:1A9E.0005: input,hidraw1: USB HID v1.10 Keyboard [U-COMM RF USB Controller] on usb-0000:00:14.0-8/input1 Aug 19 13:12:24 porky kernel: [ 59.290936] input: U-COMM RF USB Controller as /devices/pci0000:00/0000:00:14.0/usb1/1-8/1-8:1.2/0003:062A:1A9E.0006/input/input18 Aug 19 13:12:24 porky kernel: [ 59.291081] hid-generic 0003:062A:1A9E.0006: input,hidraw2: USB HID v1.10 Gamepad [U-COMM RF USB Controller] on usb-0000:00:14.0-8/input2 Aug 19 13:12:25 porky kernel: [ 59.512028] usb 1-7: new full-speed USB device number 7 using xhci_hcd Aug 19 13:12:25 porky kernel: [ 59.640429] usb 1-7: New USB device found, idVendor=2389, idProduct=00a8, bcdDevice= 2.00 Aug 19 13:12:25 porky kernel: [ 59.640432] usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Aug 19 13:12:25 porky kernel: [ 59.640433] usb 1-7: Product: Usb Composite Device Aug 19 13:12:25 porky kernel: [ 59.640435] usb 1-7: Manufacturer: Usb Composite Device Aug 19 13:12:25 porky kernel: [ 59.643291] input: Usb Composite Device Usb Composite Device as /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/0003:2389:00A8.0007/input/input19 Aug 19 13:12:25 porky kernel: [ 59.694974] hid-generic 0003:2389:00A8.0007: input,hidraw3: USB HID v2.00 Mouse [Usb Composite Device Usb Composite Device] on usb-0000:00:14.0-7/input0 Aug 19 13:12:25 porky kernel: [ 59.696099] input: Usb Composite Device Usb Composite Device as /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.1/0003:2389:00A8.0008/input/input20 Aug 19 13:12:25 porky kernel: [ 59.747997] hid-generic 0003:2389:00A8.0008: input,hidraw4: USB HID v2.00 Keyboard [Usb Composite Device Usb Composite Device] on usb-0000:00:14.0-7/input1 For 4.18.3 the logfile contains Aug 19 13:07:07 porky kernel: [ 7215.393644] usb 2-8: USB disconnect, device number 6 Aug 19 13:07:07 porky kernel: [ 7215.682577] usb 2-8: new full-speed USB device number 8 using xhci_hcd Aug 19 13:07:07 porky kernel: [ 7215.811318] usb 2-8: New USB device found, idVendor=062a, idProduct=1a9e, bcdDevice= 1.00 Aug 19 13:07:07 porky kernel: [ 7215.811322] usb 2-8: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Aug 19 13:07:07 porky kernel: [ 7215.811324] usb 2-8: Product: RF USB Controller Aug 19 13:07:07 porky kernel: [ 7215.811326] usb 2-8: Manufacturer: U-COMM Aug 19 13:07:07 porky kernel: [ 7215.814160] input: U-COMM RF USB Controller as /devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8:1.0/0003:062A:1A9E.0009/input/input29 Aug 19 13:07:07 porky kernel: [ 7215.865796] hid-generic 0003:062A:1A9E.0009: input,hidraw0: USB HID v1.10 Mouse [U-COMM RF USB Controller] on usb-0000:00:14.0-8/input0 Aug 19 13:07:07 porky kernel: [ 7215.867996] input: U-COMM RF USB Controller Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8:1.1/0003:062A:1A9E.000A/input/input30 Aug 19 13:07:07 porky kernel: [ 7215.919743] input: U-COMM RF USB Controller System Control as /devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8:1.1/0003:062A:1A9E.000A/input/input31 Aug 19 13:07:07 porky kernel: [ 7215.919861] input: U-COMM RF USB Controller Consumer Control as /devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8:1.1/0003:062A:1A9E.000A/input/input32 Aug 19 13:07:07 porky kernel: [ 7215.919942] input: U-COMM RF USB Controller Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8:1.1/0003:062A:1A9E.000A/input/input33 Aug 19 13:07:07 porky kernel: [ 7215.920158] hid-generic 0003:062A:1A9E.000A: input,hidraw1: USB HID v1.10 Keyboard [U-COMM RF USB Controller] on usb-0000:00:14.0-8/input1 Aug 19 13:07:07 porky kernel: [ 7215.922493] input: U-COMM RF USB Controller as /devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8:1.2/0003:062A:1A9E.000B/input/input34 Aug 19 13:07:07 porky kernel: [ 7215.922867] hid-generic 0003:062A:1A9E.000B: input,hidraw2: USB HID v1.10 Gamepad [U-COMM RF USB Controller] on usb-0000:00:14.0-8/input2 Aug 19 13:07:08 porky kernel: [ 7216.144629] usb 2-7: new full-speed USB device number 9 using xhci_hcd Aug 19 13:07:08 porky kernel: [ 7216.273321] usb 2-7: New USB device found, idVendor=2389, idProduct=00a8, bcdDevice= 2.00 Aug 19 13:07:08 porky kernel: [ 7216.273324] usb 2-7: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Aug 19 13:07:08 porky kernel: [ 7216.273326] usb 2-7: Product: Usb Composite Device Aug 19 13:07:08 porky kernel: [ 7216.273328] usb 2-7: Manufacturer: Usb Composite Device Aug 19 13:07:08 porky kernel: [ 7216.276603] input: Usb Composite Device Usb Composite Device Mouse as /devices/pci0000:00/0000:00:14.0/usb2/2-7/2-7:1.0/0003:2389:00A8.000C/input/input35 Aug 19 13:07:08 porky kernel: [ 7216.328826] input: Usb Composite Device Usb Composite Device Consumer Control as /devices/pci0000:00/0000:00:14.0/usb2/2-7/2-7:1.0/0003:2389:00A8.000C/input/input36 Aug 19 13:07:08 porky kernel: [ 7216.328916] input: Usb Composite Device Usb Composite Device System Control as /devices/pci0000:00/0000:00:14.0/usb2/2-7/2-7:1.0/0003:2389:00A8.000C/input/input37 Aug 19 13:07:08 porky kernel: [ 7216.329006] hid-generic 0003:2389:00A8.000C: input,hidraw3: USB HID v2.00 Mouse [Usb Composite Device Usb Composite Device] on usb-0000:00:14.0-7/input0 Aug 19 13:07:08 porky kernel: [ 7216.330794] input: Usb Composite Device Usb Composite Device as /devices/pci0000:00/0000:00:14.0/usb2/2-7/2-7:1.1/0003:2389:00A8.000D/input/input38 Aug 19 13:07:08 porky kernel: [ 7216.382988] hid-generic 0003:2389:00A8.000D: input,hidraw4: USB HID v2.00 Keyboard [Usb Composite Device Usb Composite Device] on usb-0000:00:14.0-7/input1 I tried another gyroscopic mouse (Rii mini i7, vendor/product is 062a/1a9e). It works very well with 4.18 in keyboard and mouse mode, so I would guess this is some driver issue. Every helpful comment is highly appreciated. Of course I would be glad to help tracking this down. Regards Harri