[0.17.1] Scan code change causes OS-level control/caps-lock swap to be ignored

[nforrester]

In my operating system configuration I swapped the control and caps-lock keys on my keyboard. This makes my keyboard much more comfortable. Everything was great in 0.16, but presumably due to the change described in FFF #259 Factorio is now ignoring this. My guess is that it's looking at the scan codes and trying to guess which ones correspond to control and caps-lock, rather than looking at the key codes, which are what I want.

I would be perfectly happy to go into the "Controls settings" page and sort this out myself, mapping "Inventory transfer" to "CAPS LOCK + Left mouse button" and so on, but Factorio doesn't recognize caps-lock as a valid modifier key, so I can't even fix it that way.

I see two possible ways to solve this (there may be others I'm not thinking of):

1. Allow a configuration option to use the old key-code behavior rather than the new scan-code behavior.

2. Allow caps-lock to be a valid modifier key, thereby letting me fix this myself in the "Controls settings" page.

I'm running Arch Linux, updated today. I performed the swap with:

setxkbmap -option 'ctrl:swapcaps'

If you're testing on linux you can use that command to temporarily perform the swap in the same way I did. Your keyboard will go back to normal when you reboot, or when you run:

setxkbmap -option

[nforrester]

This looks closely related: viewtopic.php?f=7&t=65381

[tehfreek]

Duplicate of viewtopic.php?p=400274 .

[posila]

Thanks for the report.
Moving to duplicates. See also 65881