By default, the extended function keys are intercepted and used as media keys (i.e. F20 is microphone mute). I want to use them as normal function keys, but the option for it does not exist in the settings, even though it should.
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Please indicate which keyboard you’re using.
Is your keyboard listed in the “xkeyboard-config” man page?
My keyboard is not listed, so I’ve kept the setting on Generic 104-key PC
The Section does not exist at all.
??? – In the KDE Plasma System Settings, the “Input Devices” section – “Keyboard” – top right: “Configure Key Bindings” –
Really, that part of the System Settings doesn’t exist?
Are you absolutely certain, for the Linux distribution you’re using, that all the package dependencies are correctly satisfied?
And, are you absolutely certain that nothing has been deleted from the system directories?
Are all the files and directories in the distribution’s packages correctly present on your system?
Reasonably sure; I installed Debian about a week ago, apt does not list anything broken, and reinstalling kde didn’t help
I have reused my home partition, however that was from a setup with kde where the option was present
I have tried following this reddit post, which did make F24, F19, F18 and F17 work, but F23 - F20 were still intercepted (and F20 still toggled microphone mute).
When searching for “function keys” in the system settings, it does bring up the keyboard settings page as the only result, but there is of course no option with this text.
The list of options seems to be quite short –
- What happens if you scroll down the displayed list?
sorry for the late reply
the list extends down to Use keyboard LED to show alternative layout, i simply cropped the screenshot to match @pg-tips’
applying the .Xmodmap settings as described in the reddit post I linked 4d ago and removing all of the keyboard shortcuts using F20 (XF86AudioMicMute), F21 (XF86TouchpadToggle), F22 (XF86TouchpadOn), and F23 (XF86TouchpadOff) in the system settings has now made all extended FKeys work
the Key Bindings option is, of course, still missing from the system settings
Same behaviour in my Kubuntu 25.10, Plasma 6.4.5, X11 installation. I use the not listed Logitech K830 keyboard, so I selected model “Logitech | Logitech”. In Key Bindings there is no entry for function keys between “Esperanto letters…” and “Japanese keyboard options”. When I select keyboard “Generic | Generic 104-key PC” same problem. Searching for “function” shows no result. I am astonished that there is an option for functions keys in the screenshot. I upgraded Kubuntu at least two times now to 25.10.
This is fixed since my upgrade to Kubuntu 26.04 with KDE Plasma 6.6.4. The missed key binding for “Function keys” is now available.

