FN Keys are not working.

[krygeNNN]

I am running arch linux 5.14.14-arch1-1 kernel on my thinkpad e14 gen2 ryzen 5 4500u machine.
My FN lock keys are not working. I mean I can not increase decrease brightness or volume with fn keys, and also leds on fn, microphone and capslock are not working.

2 months ago I solved this problem somehow, I really do not remember, I formatted my machine because I broke somethings after installing too many AUR packages. Whatever, I mean there is a solution it is certain but I do not remember how to fix this.

I had a folder called acpi in my /proc directory. "/proc/acpi" and inside that acpi folder I remember I had folders called, "fan" and "ibm".
Inside "ibm" there was also folder called "hotkeys". The thing is that they were there after some update or something but I guess those were the things that serving that functionality to the kernel.

And yes thinkpad_acpi is loaded succesfully on the kernel.

Code: Select all

blablabla@thinkpad: lsmod | grep thinkpad_acpi
thinkpad_acpi         131072  0
platform_profile       16384  1 thinkpad_acpi
ledtrig_audio          16384  3 snd_ctl_led,snd_hda_codec_generic,thinkpad_acpi
rfkill                 32768  8 bluetooth,thinkpad_acpi,cfg80211
snd                   114688  18 snd_ctl_led,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,
snd_hda_codec_realtek,snd_timer,thinkpad_acpi,snd_pcm
video                  57344  1 thinkpad_acpi

Any suggestions ?