What are these mysterious Fn+[key] functions?

Question

While trying to solve another issue I found these weird key combinations with uncertain functions
My PC is DELL XPS 13 9310, Windows 10 Pro (Build 19044).

What are these keys?
What is their function?
Is it documented somewhere?
Are there more such hidden functions?

(for some reason, the form always fails when I try to write the table, so here it is as a screenshot )

Ubuntu manpages
https://manpages.ubuntu.com/manpages/impish/man7/virkeycode-atset1.7.html
This list gives the supposed key names, although I was not able to verify the particular functions listed. What's interesting though is that key 57399 is skipped altogether!

Virtual keyboard
I also opened virtual On-Screen Keyboard and saw some of the keys being activated on the virtual keyboard even though they are missing on my physical keyboard. Added to the table as well.

Originally asked on Windows Forum https://answers.microsoft.com/en-us/windows/forum/windows_10-start-win_general/what-are-these-mysterious-fnkey-functions/709cf845-c84e-4bd2-a3d5-e0c656a37ac7?messageId=a1a974b4-5a27-4602-993f-20a7beb3177c

DELL-Cares · Answer

Hello, I see you are looking for technical assistance. If you need our help, you can follow @dellcares and start a private/direct message with us and we will be happy to assist you.

vferko · Answer

Hi, thank you, however I am not seeking a technical assistance. Everything works on my end. I am just curious what these undocumented key combinations are.

DELL-Cares · Answer

To provide the best of our support, start a private/direct message with us and we will be happy to help you.

vferko · Answer

This doesn't help. I just want to know what these keys do.

XPS_Man · Answer

Due to small form factor, some keys are not available, obviously.

Dell have some documented and some not. Depending the OS you are running you may find some more.

https://www.dell.com/support/manuals/en-us/xps-13-9360-laptop/xps-13-9360-setup_specifications/keyboard-shortcuts?guid=guid-a380dcc9-ba4c-4fd4-ad7b-08d0f7147443&lang=en-us

XPS

What are these mysterious Fn+[key] functions?

Was this post helpful?