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My Logitech MX Anywhere 2 is connected to my PC through it's proprietary dongle. To be able to (re-)pair the mouse to its dongle, I installed solaar (version 1.0.1).

After a cold boot into X11, solaar's GUi starts 1, the LED on the mouse lights up (green on top, white on the bottom), but it always seems to take a while until a move of the mouse results in a corresponding move of the mouse pointer on the screen or tapping the mouse buttons having any effect.

I did

lsusb > lsusb_nomouse.txt

while the mouse was not reacting, and

lsusb > lsusb_mouse.txt

after it had started to move the mouse pointer; however, a

diff lsusb_mouse.txt lsusb_nomouse.txt

came up empty. The best hint might be that a

dmesg | grep -i logitech

ends in the following lines:

[    4.000528] logitech-hidpp-device 0003:046D:4063.0004: input,hidraw1: USB HID v1.11 Keyboard [Logitech MX Anywhere 2] on usb-0000:00:14.0-1/input2:1
[    4.044111] input: Logitech Anywhere MX as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.2/0003:046D:C52B.0003/0003:046D:1017.0005/input/input23
[    4.044475] logitech-hidpp-device 0003:046D:1017.0005: input,hidraw2: USB HID v1.11 Mouse [Logitech Anywhere MX] on usb-0000:00:14.0-1/input2:2
[   30.676020] logitech-hidpp-device 0003:046D:4063.0004: HID++ 4.5 device connected.

The ~26sec delay between the last two messages seems to correspond to my waiting time.

Following this post, I ran 'systemd-analyze blame'. However, the first lines don't seem to have anything to do with the mouse:

46.705s fstrim.service                                       
 6.970s plymouth-quit-wait.service                           
 6.575s NetworkManager-wait-online.service                   
 3.500s fwupd-refresh.service                                
 2.280s fwupd.service                                        
 1.727s mysql.service                                        
 1.345s gpu-manager.service                                  

What can I do to make the delay go away? What is happening in those ~26sec? How could I diagnose this behaviour any further?

1 Solaar GUI with open context menu

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  • 1
    Do you have TWO Anywhere mice? In Solaar, un-pair BOTH mice, re-pair one, and see if that works. If not, un-pair the mouse again, boot into Windows, pair the mouse there using the Logitech software, reboot into Ubuntu, and see if it works. Does your Logitech dongle have the updated firmware?
    – heynnema
    Nov 16, 2020 at 20:55
  • @heynnema Un-/repairing with solaar - didn't help. Un-/repairing with windows/logitech software - didn't help. Unpairing the other mouse - didn't help. :(
    – doppelfish
    Nov 16, 2020 at 21:23
  • Does it work as expected in Windows? Did you do the firmware update? Update Solaar to 1.0.3 and see if that helps.
    – heynnema
    Nov 16, 2020 at 21:45
  • 1
    Is the dongle plugged directly into a computer USB port, or via a USB hub, or something else?
    – heynnema
    Nov 16, 2020 at 22:41
  • @heynnema it's plugged directly into the laptop.
    – doppelfish
    Nov 17, 2020 at 19:49

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