Public bug reported:

I upgraded Kubuntu 18.04 to 20.04 Beta. The bug that I'm experiencing
causes the logitech scroll button to function at a fraction of its
normal speed, making it necessary to repeatedly scroll in order to
accomplish what normally might be done with a single revolution.

WORKAROUND
1. Unplug the USB plug and plug back in.
2. Revert to an older Kernel ---> 4.18.5-041805-generic.

Not that it's directly relevant to this bug, but I've solved two other
issues by reverting to the older kernel:

https://bugs.launchpad.net/ubuntu/+bug/1871408
https://bugs.launchpad.net/ubuntu/+bug/1871411

Seems that the latest Kernel doesn't like my Thinkpad or accessories.


SOFTWARE/OS VERSIONS

System:    Host: ThinkPad Kernel: 5.4.0-21-generic x86_64 bits: 64 Desktop: KDE 
Plasma 5.18.3 
           Distro: Ubuntu 20.04 LTS (Focal Fossa) 
Machine:   Type: Laptop System: LENOVO product: 20HF0012US v: ThinkPad T470s 
serial: <superuser/root required> 
           Mobo: LENOVO model: 20HF0012US v: SDK0J40697 WIN serial: 
<superuser/root required> UEFI: LENOVO v: N1WET31W (1.10 ) 
           date: 04/17/2017 
Battery:   ID-1: BAT0 charge: 21.6 Wh condition: 22.0/23.5 Wh (94%) 
           ID-2: BAT1 charge: 21.4 Wh condition: 21.7/26.3 Wh (82%) 
CPU:       Topology: Dual Core model: Intel Core i5-7300U bits: 64 type: MT MCP 
L2 cache: 3072 KiB 
           Speed: 800 MHz min/max: 400/3500 MHz Core speeds (MHz): 1: 792 2: 
830 3: 809 4: 822 
Graphics:  Device-1: Intel HD Graphics 620 driver: i915 v: kernel 
           Display: x11 server: X.Org 1.20.7 driver: modesetting unloaded: 
fbdev,vesa resolution: 1920x1080~60Hz 
           OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa 
20.0.2 
Audio:     Device-1: Intel Sunrise Point-LP HD Audio driver: snd_hda_intel 
           Sound Server: ALSA v: k5.4.0-21-generic 
Network:   Device-1: Intel Ethernet I219-LM driver: e1000e 
           IF: enp0s31f6 state: down mac: c8:5b:76:e3:99:5b 
           Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi 
           IF: wlp58s0 state: up mac: f8:59:71:49:f6:2e 
Drives:    Local Storage: total: 476.94 GiB used: 272.06 GiB (57.0%) 
           ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 960 PRO 512GB size: 
476.94 GiB 
Partition: ID-1: / size: 33.65 GiB used: 22.44 GiB (66.7%) fs: ext4 dev: 
/dev/nvme0n1p2 
           ID-2: swap-1 size: 15.62 GiB used: 0 KiB (0.0%) fs: swap dev: 
/dev/nvme0n1p4 
Sensors:   System Temperatures: cpu: 36.5 C mobo: N/A 
           Fan Speeds (RPM): cpu: 0 
Info:      Processes: 236 Uptime: 1d 19h 44m Memory: 19.43 GiB used: 6.50 GiB 
(33.5%) Shell: bash inxi: 3.0.38

** Affects: ubuntu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1871415

Title:
  Upgrading 18.04 to 20.04: Issues with Logitech Mouse Scroll Button

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