Hi,
On my HP Zbook studio G5 a few keys on my keyboard give the same
scancodes. Most notably, the brightness and mute function keys all give
the scan code sequence 0xe0 0x20 0xe0 0xa0 as reported by showkey
--scancodes. It only produces a scancode when pressed, not when
released. I found another very similar issue in this mailing list found
in https://www.spinics.net/lists/platform-driver-x86/msg16791.html. The
issue in that mail was solved by a bios update. I'm running the latest
bios, but I still have the issue.
I tried the kernels: Manjaro 5.7rc4-1, Manjaro 5.6.11-1 and Manjaro
5.4.39-1
I also tried a few other distributions, but they all have the same
issue.
I'm happy to provide more information about this issue if needed.
Thanks,
Friso