Arch Linux

antonvovk

Member

Registered: 2020-08-23

Posts: 2

[SOLVED] HP ProBook 450 G6 - Multiple keys have same keycode

On my laptop, multiple keys are mapped to the same keycode, specifically - Fn+F3, Fn+F4, and Fn+F8. This is a big problem since Fn+F3 and Fn+F4 are responsible for brightness up/down but instead, they are doing the same functionality as Fn+F8 - microphone on/off.
Using the command below:

sudo showkey -k

Gave me these results:

• pressing Fn+F3: keycode 190 press keycode 190 release

• pressing Fn+F4: keycode 190 press keycode 190 release

• pressing Fn+F8: keycode 190 press keycode 190 release

I want to find out where the problem is coming from (BIOS, kernel or some packages).

Last edited by antonvovk (2020-08-23 09:59:55)

antonvovk

Member

Registered: 2020-08-23

Posts: 2

Re: [SOLVED] HP ProBook 450 G6 - Multiple keys have same keycode

Problem can be solved just by reflashing BIOS.
It seems like Windows is somehow changing some value in the BIOS which disables these keys.
So if you had Windows and you have just installed Linux, you must reflash BIOS to make these keys work correctly.