Comment 21 for bug 2034477

cc. Same issue with 6.2.0-34-generic on an old i5 machine and Logitech K400 kbd w/integrated mousepad.

# dmesg |grep -i logitech
[ 5.648913] usb 2-1.1: Manufacturer: Logitech
[ 13.148210] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1a.0/usb2/2-1/2-1.1/2-1.1:1.0/0003:046D:C52B.0001/input/input3
[ 13.208627] hid-generic 0003:046D:C52B.0001: input,hidraw0: USB HID v1.11 Keyboard [Logitech USB Receiver] on usb-0000:00:1a.0-1.1/input0
[ 13.208971] input: Logitech USB Receiver Mouse as /devices/pci0000:00/0000:00:1a.0/usb2/2-1/2-1.1/2-1.1:1.1/0003:046D:C52B.0002/input/input4
[ 13.209214] input: Logitech USB Receiver Consumer Control as /devices/pci0000:00/0000:00:1a.0/usb2/2-1/2-1.1/2-1.1:1.1/0003:046D:C52B.0002/input/input5
[ 13.268569] input: Logitech USB Receiver System Control as /devices/pci0000:00/0000:00:1a.0/usb2/2-1/2-1.1/2-1.1:1.1/0003:046D:C52B.0002/input/input6
[ 13.269157] hid-generic 0003:046D:C52B.0002: input,hiddev0,hidraw1: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-0000:00:1a.0-1.1/input1
[ 13.269713] hid-generic 0003:046D:C52B.0003: hiddev1,hidraw2: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1a.0-1.1/input2

When it was working

# cat /var/log/Xorg.1.log.old | grep -i Logi
[110891.923] (II) systemd-logind: took control of session /org/freedesktop/login1/session/_3438
[110891.925] (II) systemd-logind: got fd for /dev/dri/card1 226:1 fd 15 paused 0
[110891.927] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 16 paused 0
[110891.940] (II) systemd-logind: releasing fd for 226:1
[110892.180] (II) systemd-logind: got fd for /dev/input/event1 13:65 fd 42 paused 0
[110892.213] (II) systemd-logind: got fd for /dev/input/event2 13:66 fd 45 paused 0
[110892.220] (II) systemd-logind: got fd for /dev/input/event0 13:64 fd 46 paused 0
[110892.228] (II) config/udev: Adding input device Logitech K400 Plus (/dev/input/event3)
[110892.228] (**) Logitech K400 Plus: Applying InputClass "evdev pointer catchall"
[110892.228] (**) Logitech K400 Plus: Applying InputClass "evdev keyboard catchall"
[110892.228] (**) Logitech K400 Plus: Applying InputClass "libinput pointer catchall"
[110892.228] (**) Logitech K400 Plus: Applying InputClass "libinput keyboard catchall"
[110892.228] (II) Using input driver 'libinput' for 'Logitech K400 Plus'
[110892.229] (II) systemd-logind: got fd for /dev/input/event3 13:67 fd 47 paused 0
[110892.229] (**) Logitech K400 Plus: always reports core events
[110892.232] (II) event3 - Logitech K400 Plus: is tagged by udev as: Keyboard Mouse
[110892.232] (II) event3 - Logitech K400 Plus: device is a pointer
[110892.232] (II) event3 - Logitech K400 Plus: device is a keyboard
[110892.233] (II) event3 - Logitech K400 Plus: device removed
[110892.233] (II) libinput: Logitech K400 Plus: needs a virtual subdevice
[110892.233] (II) XINPUT: Adding extended input device "Logitech K400 Plus" (type: MOUSE, id 9)
[110892.233] (**) Logitech K400 Plus: (accel) selected scheme none/0
[110892.233] (**) Logitech K400 Plus: (accel) acceleration factor: 2.000
[110892.233] (**) Logitech K400 Plus: (accel) acceleration threshold: 4
[110892.235] (II) event3 - Logitech K400 Plus: is tagged by udev as: Keyboard Mouse
[110892.236] (II) event3 - Logitech K400 Plus: device is a pointer
[110892.236] (II) event3 - Logitech K400 Plus: device is a keyboard
[110892.237] (II) config/udev: Adding input device Logitech K400 Plus (/dev/input/mouse0)
[110892.247] (II) systemd-logind: got fd for /dev/input/event4 13:68 fd 48 paused 0
[110892.263] (**) Logitech K400 Plus: Applying InputClass "evdev pointer catchall"
[110892.263] (**) Logitech K400 Plus: Applying InputClass "evdev keyboard catchall"
[110892.263] (**) Logitech K400 Plus: Applying InputClass "libinput pointer catchall"
[110892.263] (**) Logitech K400 Plus: Applying InputClass "libinput keyboard catchall"
[110892.263] (II) Using input driver 'libinput' for 'Logitech K400 Plus'
[110892.263] (II) systemd-logind: returning pre-existing fd for /dev/input/event3 13:67
[110892.263] (**) Logitech K400 Plus: always reports core events
[110892.263] (II) libinput: Logitech K400 Plus: is a virtual subdevice
[110892.263] (II) XINPUT: Adding extended input device "Logitech K400 Plus" (type: KEYBOARD, id 11)
[110892.263] (II) systemd-logind: returning pre-existing fd for /dev/input/event4 13:68
[110938.912] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 29ms, your system is too slow
[466904.557] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 26ms, your system is too slow
[467200.761] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 30ms, your system is too slow
[467202.027] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 24ms, your system is too slow
[467596.881] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 22ms, your system is too slow
[495217.527] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 32ms, your system is too slow
[495249.881] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 22ms, your system is too slow
[495250.363] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 24ms, your system is too slow
[499669.923] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 32ms, your system is too slow
[499670.407] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 36ms, your system is too slow
[499700.257] (EE) event3 - Logitech K400 Plus: client bug: event processing lagging behind by 34ms, your system is too slow
[567379.129] (II) event3 - Logitech K400 Plus: device removed
[567379.696] (II) systemd-logind: not releasing fd for 13:68, still in use
[567379.696] (II) systemd-logind: not releasing fd for 13:67, still in use
[567379.696] (II) systemd-logind: releasing fd for 13:68

  Now after latest updates

# cat /var/log/Xorg.0.log | grep -i Logi
[ 123.346] (II) systemd-logind: took control of session /org/freedesktop/login1/session/c1
[ 123.351] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 14 paused 0
[ 123.354] (II) systemd-logind: got fd for /dev/dri/card1 226:1 fd 15 paused 0
[ 129.138] (II) systemd-logind: releasing fd for 226:0
[ 135.320] (II) systemd-logind: got fd for /dev/input/event1 13:65 fd 41 paused 0
[ 136.489] (II) systemd-logind: got fd for /dev/input/event2 13:66 fd 44 paused 0
[ 136.499] (II) systemd-logind: got fd for /dev/input/event0 13:64 fd 45 paused 0
[ 136.521] (II) systemd-logind: got fd for /dev/input/event7 13:71 fd 46 paused 0
[ 136.530] (II) config/udev: Adding input device LogiOps Virtual Input (/dev/input/event19)
[ 136.530] (**) LogiOps Virtual Input: Applying InputClass "evdev pointer catchall"
[ 136.530] (**) LogiOps Virtual Input: Applying InputClass "evdev keyboard catchall"
[ 136.530] (**) LogiOps Virtual Input: Applying InputClass "libinput pointer catchall"
[ 136.530] (**) LogiOps Virtual Input: Applying InputClass "libinput keyboard catchall"
[ 136.530] (II) Using input driver 'libinput' for 'LogiOps Virtual Input'
[ 136.531] (EE) systemd-logind: failed to take device /dev/input/event19: No such device
[ 136.531] (**) LogiOps Virtual Input: always reports core events
[ 136.532] (II) event19 - LogiOps Virtual Input: is tagged by udev as: Keyboard Mouse
[ 136.533] (II) event19 - LogiOps Virtual Input: device is a pointer
[ 136.533] (II) event19 - LogiOps Virtual Input: device is a keyboard
[ 136.533] (II) event19 - LogiOps Virtual Input: device removed
[ 136.560] (II) libinput: LogiOps Virtual Input: needs a virtual subdevice
[ 136.560] (II) XINPUT: Adding extended input device "LogiOps Virtual Input" (type: MOUSE, id 10)
[ 136.560] (**) LogiOps Virtual Input: (accel) selected scheme none/0
[ 136.561] (**) LogiOps Virtual Input: (accel) acceleration factor: 2.000
[ 136.561] (**) LogiOps Virtual Input: (accel) acceleration threshold: 4
[ 136.562] (II) event19 - LogiOps Virtual Input: is tagged by udev as: Keyboard Mouse
[ 136.562] (II) event19 - LogiOps Virtual Input: device is a pointer
[ 136.562] (II) event19 - LogiOps Virtual Input: device is a keyboard
[ 136.563] (II) config/udev: Adding input device LogiOps Virtual Input (/dev/input/mouse1)
[ 136.572] (II) systemd-logind: returning pre-existing fd for /dev/input/event7 13:71
[ 136.573] (**) LogiOps Virtual Input: Applying InputClass "evdev pointer catchall"
[ 136.573] (**) LogiOps Virtual Input: Applying InputClass "evdev keyboard catchall"
[ 136.573] (**) LogiOps Virtual Input: Applying InputClass "libinput pointer catchall"
[ 136.573] (**) LogiOps Virtual Input: Applying InputClass "libinput keyboard catchall"
[ 136.573] (II) Using input driver 'libinput' for 'LogiOps Virtual Input'
[ 136.574] (EE) systemd-logind: failed to take device /dev/input/event19: No such device
[ 136.574] (**) LogiOps Virtual Input: always reports core events
[ 136.574] (II) libinput: LogiOps Virtual Input: is a virtual subdevice
[ 136.574] (II) XINPUT: Adding extended input device "LogiOps Virtual Input" (type: KEYBOARD, id 12)