[Bug 218093] New: Keyboard will not register any input after using certain FN-Combos

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=218093

            Bug ID: 218093
           Summary: Keyboard will not register any input after using
                    certain FN-Combos
           Product: Drivers
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: kotversuchung@gmail.com
        Regression: No

MSI B550 A-Pro Motherboard
Sharkoon SGK3 Keyboard

I pretty much tried all Kernels. The Issue is always the same:

When pressing a FN-Combo for the Keyboard-LEDs in my Case FN+=. The keyboard
might not be able to send any more input. "Normal" Combos like using the FN key
to increase or decrease  the Volume like FN+F2/F3 will not cause this issue. 
When checking with tools like evtest i noticed that sometimes no release
command of the keyboard is received and it spams the Terminal while no more
other input is recognized. Connecting the Keyboard to a USB3 Port (instead of
the USB "Keyboard Port") the keyboard stays responsive though you'll still see
the "terminal spam" caused by no release event.

I tried blacklisting certain combos so that i wouldn't accidently hit that key
though it just doesn't help. To be honest it seems to me that Linux
recognizes/receives that it shouldn't. Because even if the Input "freezes" i'm
still able to change the LED-Behaviour of the Keyboard.. 
On Windows this issue doesn't exist. So i'm pretty certain that it is related
to Linux in some way. I also tried an Uefi-Update yet the Issue persisted.
I'm by no means a "Linux Pro" and actually have no clue what else i could try.
So i just wanted to report that here in case someone else is having this issue.

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