middle-button pasting stopped working for me

[MCon]

I have been using the "normal" left-button-select/middle-button-paste for ages.
Recently it stopped working for me.
What should I check to get it back?
I am on a completely up-to-date Linux Mint 20.2 "Uma".
TiA!

[gittiest personITW]

Does your middle click work, as in is the mouse working properly?
Silly questions but best to check it. Is it a wireless mouse? Change batteries.

Have you remapped anything recently?
When did it last work?
I suppose you tried a reboot?

Maybe you would like to follow number 5 in the following link as we have no idea what hardware or whether it is a touchpad etc.
http://forums.linuxmint.com/viewtopic.php?f=17&t=83444

[MCon]

Thank for the hints.
Sorry I didn't provide the needed info.
I don't think this is really relevant, but I might be wrong.

Code: Select all

mcon@lenovo ~ $ inxi -Fxxxrz
System:    Kernel: 5.4.0-90-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
           Desktop: Cinnamon 5.0.7 wm: muffin dm: LightDM 1.30.0 
           Distro: Linux Mint 20.2 Uma base: Ubuntu 20.04 focal 
Machine:   Type: Laptop System: LENOVO product: 20378 v: Lenovo Y50-70 serial: <filter> 
           Chassis: type: 10 v: Lenovo Y50-70 serial: <filter> 
           Mobo: LENOVO model: Lenovo Y50-70 v: 31900058WIN serial: <filter> 
           UEFI [Legacy]: LENOVO v: 9ECN43WW(V3.03) date: 08/12/2015 
Battery:   ID-1: BAT1 charge: 30.2 Wh condition: 45.3/54.8 Wh (83%) volts: 8.0/7.4 
           model: LENOVO PABAS0241231 type: Li-ion serial: <filter> status: Charging 
CPU:       Topology: Quad Core model: Intel Core i7-4710HQ bits: 64 type: MT MCP 
           arch: Haswell rev: 3 L2 cache: 6144 KiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
           bogomips: 39905 
           Speed: 1097 MHz min/max: 800/3500 MHz Core speeds (MHz): 1: 1097 2: 1098 
           3: 1098 4: 1101 5: 1098 6: 1098 7: 1097 8: 1100 
Graphics:  Device-1: Intel 4th Gen Core Processor Integrated Graphics vendor: Lenovo 
           driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:0416 
           Device-2: NVIDIA GM107M [GeForce GTX 860M] vendor: Lenovo driver: N/A 
           bus ID: 01:00.0 chip ID: 10de:1392 
           Display: x11 server: X.Org 1.20.11 driver: modesetting unloaded: fbdev,vesa 
           resolution: 1920x1080~60Hz, 1920x1080~60Hz 
           OpenGL: renderer: Mesa DRI Intel HD Graphics 4600 (HSW GT2) 
           v: 4.5 Mesa 21.0.3 compat-v: 3.0 direct render: Yes 
Audio:     Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio 
           vendor: Lenovo driver: snd_hda_intel v: kernel bus ID: 00:03.0 
           chip ID: 8086:0c0c 
           Device-2: Intel 8 Series/C220 Series High Definition Audio vendor: Lenovo 
           driver: snd_hda_intel v: kernel bus ID: 00:1b.0 chip ID: 8086:8c20 
           Sound Server: ALSA v: k5.4.0-90-generic 
Network:   Device-1: Intel Wireless 3160 driver: iwlwifi v: kernel port: 4000 
           bus ID: 08:00.0 chip ID: 8086:08b4 
           IF: wlan0 state: down mac: <filter> 
           Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
           vendor: Lenovo driver: r8169 v: kernel port: 3000 bus ID: 09:00.0 
           chip ID: 10ec:8168 
           IF: eth0 state: up speed: 100 Mbps duplex: full mac: <filter> 
           IF-ID-1: zt0 state: unknown speed: 10 Mbps duplex: full mac: <filter> 
           IF-ID-2: zt1 state: unknown speed: 10 Mbps duplex: full mac: <filter> 
           IF-ID-3: zt2 state: unknown speed: 10 Mbps duplex: full mac: <filter> 
Drives:    Local Storage: total: 931.51 GiB used: 404.75 GiB (43.5%) 
           ID-1: /dev/sda vendor: Western Digital model: WD10SPCX-24HWST1 
           size: 931.51 GiB speed: 6.0 Gb/s rotation: 5400 rpm serial: <filter> 
           rev: 1A02 temp: 31 C scheme: GPT 
Partition: ID-1: / size: 592.19 GiB used: 404.75 GiB (68.3%) fs: ext4 dev: /dev/sda9 
           ID-2: swap-1 size: 7.92 GiB used: 1.0 MiB (0.0%) fs: swap dev: /dev/sda10 
Sensors:   System Temperatures: cpu: 54.0 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/anydesk-stable.list 
           1: deb http://deb.anydesk.com/ all main
           Active apt repos in: /etc/apt/sources.list.d/google-chrome.list 
           1: deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main
           Active apt repos in: /etc/apt/sources.list.d/maarten-baert-simplescreenrecorder-focal.list 
           1: deb http://ppa.launchpad.net/maarten-baert/simplescreenrecorder/ubuntu focal main
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http://mirror6.layerjet.com/linuxmint/packages uma main upstream import backport
           2: deb http://ubuntu.mirror.garr.it/ubuntu focal main restricted universe multiverse
           3: deb http://ubuntu.mirror.garr.it/ubuntu focal-updates main restricted universe multiverse
           4: deb http://ubuntu.mirror.garr.it/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
           Active apt repos in: /etc/apt/sources.list.d/skype-stable.list 
           1: deb [arch=amd64] https://repo.skype.com/deb stable main
           Active apt repos in: /etc/apt/sources.list.d/teams.list 
           1: deb [arch=amd64] https://packages.microsoft.com/repos/ms-teams stable main
           Active apt repos in: /etc/apt/sources.list.d/zerotier.list 
           1: deb http://download.zerotier.com/debian/xenial xenial main
Info:      Processes: 274 Uptime: 3h 27m Memory: 7.69 GiB used: 3.38 GiB (43.9%) 
           Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 7/9 Shell: bash 
           v: 5.0.17 running in: gnome-terminal inxi: 3.0.38 

I am pretty sure middle button is working properly.
It stopped working somewhen about 2/3 weeks ago.
I keep this laptop strictly up-to date, I run UpdateManager daily (usually right after boot).
I am unsure about what update triggered the problem; I didn't notice it immediately and when I did I blamed the mouse at first, then I tried with another (wired) one with same results.
I am rebooting daily as this is a portable (Lenovo Y50-70, if it matters) and I do not hibernate it.
This is indeed a wireless mouse (hp) and I recently (i.e.: after problem started) changed batteries.

Thanks

[gittiest personITW]

If it was an update that caused the problem, you could wait for an imminent kernel update and see if that fixes it, or make a note of what applications you've installed in the last 2 or 3 weeks and Timeshift to before that, test, reinstall the applications, test, do a couple of updates at a time, test etc.