Bug 511013

Summary:	Extra mouse buttons can't be configured
Product:	[Applications] systemsettings	Reporter:	Rob Kam <robkam>
Component:	kcm_mouse	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED NOT A BUG
Severity:	normal	CC:	duha.bugs, kdebugs.20.orzelf, natalie_clarius, nate, rm
Priority:	NOR
Version First Reported In:	6.4.5
Target Milestone:	---
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Rob Kam 2025-10-24 12:01:37 UTC

SUMMARY


STEPS TO REPRODUCE
System Settings > Mouse > Configure Extra Buttons
Click Add Binding
Press the mouse button for which you want to add a key binding. 

OBSERVED RESULT
No mouse buttons have an effect, except back button takes back to System Settings > Mouse 

EXPECTED RESULT
Should be trivial to configure mouse back and mouse forward buttons (and scroll wheel).

SOFTWARE/OS VERSIONS
Operating System: Kubuntu 25.10
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
Kernel Version: 6.17.0-5-generic (64-bit)
Graphics Platform: Wayland

ADDITIONAL INFORMATION

Comment 1 Thomas Capricelli 2025-10-24 15:10:19 UTC

And please consider accepting them as "modifiers" !  This is very important in some use cases, such as "moving a window" while holding an extra button. Most other WM can do it (openbox, wayfire come to mind), but kwin has never been able to do so.

Comment 2 Nate Graham 2025-10-24 16:34:39 UTC

What's your mouse?

Comment 3 Rob Kam 2025-10-24 16:38:19 UTC

(In reply to Nate Graham from comment #2)
> What's your mouse?

SteelSeries Rival 310

Comment 4 Rob Kam 2025-10-24 16:38:37 UTC

In the meantime I found I can get around this by using https://github.com/sezanzeb/input-remapper

Comment 5 Thomas Capricelli 2025-10-24 16:42:39 UTC

(In reply to Nate Graham from comment #2)
> What's your mouse?

Mine is identified as "SOAI Gaming Mouse" (dmesg) or "Xenta Gaming Mouse" (lsusb).
But I dont think it matters, it provides standard numbered extra keys. It was a breeze to configure with other WM.

Comment 6 RM 2025-10-25 07:15:55 UTC

FWIW this "Configure Extra Buttons" feature has never worked for me, either.  In the past I've tried it with the Kensington Expert and Slimblade trackballs.  I currently have a Ploopy Adept.

Comment 7 Nicolas Fella 2025-10-27 20:05:50 UTC

*** Bug 511021 has been marked as a duplicate of this bug. ***

Comment 8 Rob Kam 2025-10-28 10:37:28 UTC

With

Operating System: openSUSE Tumbleweed 20251024
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.4-1-default (64-bit)
Graphics Platform: Wayland

I get to "Enter the new key combination for Extra Button 1:" and it catches keypresses but not mouse clicks, e.g. can't set "Ctrl + left click".

Comment 9 Rob Kam 2025-10-29 13:51:15 UTC

Moved to  Bug 511321  Wishlist: Allow advanced mouse button remapping to include keyboard modifiers and other mouse clicks