To troubleshoot the problem, I updated the Mint installation but the problem persists. I have been searching these forums for similar reports and one reported something similar and was fixed by downgrading the kernel. So I downgraded the kernel several revisions and still no fix. I then upgraded the system back to the latest, still no fix. Then I noticed if I fire up the Firefox browser and play a youtube video or visit a webpage that has an animated ad, the mouse and keyboard behave normal again. If I close the browser and only have the desktop running, the mouse and keyboard problems return. I have no idea how best to troubleshoot the problem further. The following is the system information from System Reports. Any suggestions for troubleshooting this further would be appreciated!
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System: Kernel: 5.15.0-48-generic x86_64 bits: 64 compiler: N/A Desktop: MATE 1.26.0 wm: marco
dm: LightDM Distro: Linux Mint 20.3 Una base: Ubuntu 20.04 focal
Machine: Type: Desktop Mobo: MICRO-STAR model: 785GM-E65 (MS-7596) v: 1.0 serial: <filter>
BIOS: American Megatrends v: 2.12 date: 02/18/2011
CPU: Topology: Dual Core model: AMD Athlon II X2 250 bits: 64 type: MCP arch: K10 rev: 2
L2 cache: 2048 KiB
flags: lm nx pae sse sse2 sse3 sse4a svm bogomips: 12000
Speed: 800 MHz min/max: 800/3000 MHz Core speeds (MHz): 1: 1800 2: 3000
Graphics: Device-1: AMD RS880 [Radeon HD 4200] vendor: Micro-Star MSI driver: radeon v: kernel
bus ID: 01:05.0 chip ID: 1002:9710
Display: x11 server: X.Org 1.20.13 driver: ati,radeon unloaded: fbdev,modesetting,vesa
compositor: marco resolution: 1920x1080~60Hz
OpenGL: renderer: AMD RS880 (DRM 2.50.0 / 5.15.0-48-generic LLVM 12.0.0)
v: 3.3 Mesa 21.2.6 compat-v: 3.0 direct render: Yes
Audio: Device-1: AMD SBx00 Azalia vendor: Micro-Star MSI driver: snd_hda_intel v: kernel
bus ID: 00:14.2 chip ID: 1002:4383
Sound Server: ALSA v: k5.15.0-48-generic
Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Micro-Star MSI
driver: r8169 v: kernel port: d800 bus ID: 02:00.0 chip ID: 10ec:8168
IF: enp2s0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives: Local Storage: total: 596.17 GiB used: 142.43 GiB (23.9%)
ID-1: /dev/sda vendor: Western Digital model: WD6400AAKS-65A7B2 size: 596.17 GiB
speed: 3.0 Gb/s serial: <filter>
Partition: ID-1: / size: 122.62 GiB used: 21.92 GiB (17.9%) fs: ext4 dev: /dev/sda6
USB: Hub: 1-0:1 info: Full speed (or root) Hub ports: 6 rev: 2.0 chip ID: 1d6b:0002
Hub: 2-0:1 info: Full speed (or root) Hub ports: 6 rev: 2.0 chip ID: 1d6b:0002
Hub: 3-0:1 info: Full speed (or root) Hub ports: 3 rev: 1.1 chip ID: 1d6b:0001
Hub: 4-0:1 info: Full speed (or root) Hub ports: 3 rev: 1.1 chip ID: 1d6b:0001
Device-1: 4-1:2 info: Logitech M105 Optical Mouse type: Mouse
driver: hid-generic,usbhid rev: 2.0 chip ID: 046d:c077
Hub: 5-0:1 info: Full speed (or root) Hub ports: 3 rev: 1.1 chip ID: 1d6b:0001
Device-2: 5-2:2 info: Logitech DeLuxe 250 Keyboard type: Keyboard,HID
driver: hid-generic,usbhid rev: 1.1 chip ID: 046d:c312
Hub: 6-0:1 info: Full speed (or root) Hub ports: 3 rev: 1.1 chip ID: 1d6b:0001
Hub: 7-0:1 info: Full speed (or root) Hub ports: 2 rev: 1.1 chip ID: 1d6b:0001
Sensors: System Temperatures: cpu: 32.0 C mobo: N/A
Fan Speeds (RPM): N/A
Repos: No active apt repos in: /etc/apt/sources.list
Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
1: deb http: //packages.linuxmint.com una main upstream import backport #id:linuxmint_main
2: deb http: //archive.ubuntu.com/ubuntu focal main restricted universe multiverse
3: deb http: //archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
4: deb http: //archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
5: deb http: //security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
6: deb http: //archive.canonical.com/ubuntu/ focal partner
Info: Processes: 187 Uptime: 1h 13m Memory: 3.59 GiB used: 1.42 GiB (39.5%) Init: systemd
v: 245 runlevel: 5 Compilers: gcc: 9.4.0 alt: 9 Client: Unknown python3.8 client
inxi: 3.0.38