I'm running GNU/Linux Mint 18.2 KDE and there is no option or way to setup and control my Logitech T620 touch mouse. This is a TOUCHmouse, a one button mouse with touch sensitive features that work as gestures in order to emulate other mouse clicks.

The middle button emulation, and back and forward do not work.

I have installed Solaar to see if that would help (before doing so, mouse runs ok, just doens't have those above functions and no software on KDE offers adjustments of them. Solaar sees the mouse, identifies it, but there are no special menu settings for it.

Right and left click work, and the touch to open menu works.

I've searched and searched for solutions, and either they are too old and no longer supported (from forums in 2008 and such) and the repos don't have them, or they don't work.

So, what doesn't work:

middle button emulation, backward and forward emulation, scrolling sideways, tracking speed/senstivity.

What does work:

Left and right button emulation
menu start emulation
scolling, but only up and down

what I did try:

Installing, successfully, solaar, mouse is seen, identified, and enabled, but no special menu to adjust anything

gpointing-device-settings is obsolete for my distro

in system settings mouse control, no button options appear.

If you have already looked in the Settings in Mint for the mouse and there isn't a way to make the middle button emulation work than I'm not sure what else you can try. Also look through all of the KDE Settings and see if there is a way to control the mouse that way?

-::-I would 'try another mouse' and see if that works for you.-::-

Is this a wireless or wired mouse?

Who is the manufacturer of the mouse?

Aside from that you could try recompiling your kernel and see if that helps.

This KDE Documentation for a pointing device looks like a good place to start.

https://docs.kde.org/trunk5/en/kde-w...use/index.html

It is a Logitech T620 Touchmouse, a one button mouse that has a touch surface on top that emulate buttons and clicks.

I remember years ago, when I only tried Linux SuSE for a month messing with some files in that distro to turn on and set button order, is that still how it is done?

I'm not sure if it's still done that way or not.

The only thing I can think of is in the mouse settings.

Maybe other members will know how to control that mouse and chime into your thread.

If I find a way for your Logitech T620 I'll post it for you.
I'll look it up now.

I see in your first post that you installed Solaar.

Do you have a Solaar GUI like in this link that you can control the mouse?

https://techvorace.com/ordinateur-ta...ying-on-linux/


https://community.linuxmint.com/tutorial/view/1459

Try launching Solaar through the terminal and let me know if it gives you a gui. <it should>

From the reading that I did online about your mouse you may only have just the basic functionality from the linux drivers that Logitech provides.

Here's some "know issues" with Solaar under KDE.
https://pwr.github.io/Solaar/

Yes, sorry that I didn't explain that I had done that already. Indeed Solaar is running in the tray (what is the tray called in KDE?) and there is a gui, but the gui doesn't show options other than telling battery status.

Also, someone reminded me about xev to even verify that the mouse's virtual buttons were sending signals, and I ran it and all of the virtual buttons have signals. The probem remains being able to set, control, enable them in Mint 18.2 KDE. I somehow have the middle click (button 2, virutal button 2 that is) working on the desktop, I right clicked in the desktop and did a setting for Desktop Settings, but it won't respond or set other buttons, only the buttons 1, 2, 3. Now, yes, scrolling does work, though.

For my 2 button trackball I have to use xinput to change the emulate 3 button mouse attribute. The traditional xorg.conf routes no longer apply for a lot of distros. As far as gesture driven one button mice (tablets) go, I'm in the dark (and like it there). Plus 3 button mice are everywhere and < $20. Which is cheaper than eating at five guys.

That tray is called the Menu Bar I think.

I understand, Shadow, but it's a decent mouse that I paid good money for and works fine, in fact, XEV shows all "buttons" working, so, why should I replace it and fill a landfill. I like the touch part of the mouse, no need for a cumbersome scroll wheel. And actually I have no budget anyways, there's a lot of things I need but I can't budget right now. 10 bucks isn't much for most people, but it is for me, but let's leave that alone.

Gestures are probably supported in but a few desktop environments. TBH, I'd give KDE / Plasma / Neon / whatever it goes by these days. It's supposed to be up on that fancy mouse and high dpi stuffs. I have no shortage of traditional mice around here. But most of them do double click now from excessive age / use.