Issues with mouse and touchpad in plasma5

From	Hans <hans.ullrich@loop.de>
Newsgroups	linux.debian.user
Subject	Issues with mouse and touchpad in plasma5
Date	2021-01-02 11:50 +0100
Message-ID	<BsMDT-2sI-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi folks and a very, very happy new year!

I habe a little issue, that I want to tell about, running debian/testing and 
plasma5.

Since several months I am running into an issue with the external mouse and 
touchpad. From time to time it apppears that there are some issues with the 
mouse.

Either the mouse and touchpad is freezing (and can only be restarted when X is 
restarted) , or the mouse is behaving weird. "behaving weired" means, that 
when clicking into the menu, the menues are automatically scrolled down. Also 
the change of virtual windows does not work (the change is starting, but not 
stopping the aimed window number).

As this behaviour also appears in LXDE, I believe it is an issue with the X-
drivers.

Things I checked:

- exchaged external mouse = no difference

- plasma5 has the option, to automatically disable the touchpad when an 
external mouse is detected. When activating this option, NEVER an issue with 
the external mouse appeared

- When the above option is activated, the touchpad is not working 

Is this behaviour known? I could not find any logentries regarding to this, 
also I tried to use strace for more information, but got no success. Xorg.log 
does not tell, what happens. 

These instabilities with the mouse appear now since about 2 years, and appear 
more often, when I am running software, which needs a lot of power (like a 
flightsim, or a good shooter game whatever).

Maybe someone is knowing more. Oh, and yes, I am using an nvidia-driver 
(340xx), and heard rumours about some instability of this. 

Thanks for any hints or feedback.

Best regards

Hans

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Issues with mouse and touchpad in plasma5 Hans <hans.ullrich@loop.de> - 2021-01-02 11:50 +0100

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