Hi ... I am not new to Linux operating systems, but I'm having trouble getting my new Aikun MX-21 optical mouse recognised by my Acer Aspire laptop running Xubuntu 19.04 64-bit. I see no response at all when I plug the little receiver into any of my 3 USB ports (2 USB2 and one USB3.)
Aikun don't have a Linux compatible sticker on the box ... I ordered this mouse from Amazon Canada for $10.99. Help?
Oh, and lsusb gives me
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 1bcf:2ca0 Sunplus Innovation Technology Inc.
Bus 001 Device 004: ID 04ca:3015 Lite-On Technology Corp.
Bus 001 Device 007: ID 1d57:fa20 Xenta
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
and when I unplug the receiver Device 007 disappears.

So there's your response!
Now do the following (just to get more initial information):

• enter 'dmesg -w' in a terminal
• discard the output you get (press Enter a few dozen times)
• plug in the receiver, switch on the mouse, wiggle it etc.
• copy-paste all the NEW output you get here

When I do dmesg -w I get this continuous rolling output which will not stop ...
...
[61073.950979] audit: type=1400 audit(1561816848.631:51526): apparmor="DENIED" operation="file_mmap" profile="snap.nextcloud.nextcloud-fixer" name="/" pid=18629 comm="php" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
[61075.126851] audit: type=1400 audit(1561816849.807:51527): apparmor="DENIED" operation="file_mmap" profile="snap.nextcloud.nextcloud-fixer" name="/" pid=18695 comm="php" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
[61076.327525] audit: type=1400 audit(1561816851.007:51528): apparmor="DENIED" operation="file_mmap" profile="snap.nextcloud.nextcloud-fixer" name="/" pid=18761 comm="php" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
[61077.524792] audit: type=1400 audit(1561816852.207:51529): apparmor="DENIED" operation="file_mmap" profile="snap.nextcloud.nextcloud-fixer" name="/" pid=18827 comm="php" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
[61078.801584] audit: type=1400 audit(1561816853.483:51530): apparmor="DENIED" operation="file_mmap" profile="snap.nextcloud.nextcloud-fixer" name="/" pid=18893 comm="php" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
...

probably you can see something related in /var/log

I see nothing there either. I'm just going to return the mouse and find another. Thanks!

brashley468,

The Logitech M185 works fine in Linux:
https://www.amazon.co.uk/Logitech-Wi.../dp/B00552K0GM

Coincidentally enough, I picked one up yesterday from Canada Computers up teh street ... works well.