Here's a snippet of the uae.log after sending G.

Code:

SDL key sym 103 mod 0 scancode 10 state 0 repeat 0
- key code set to 103 (was 103) based on scancode 10
--> key_code 103 key_mod 0 state 0: "G"
= press (index 103) => input event 164
amiga_send_input_event 164 0

Next I used the Steam Controller to send F12 a couple of times

Code:

SDL key sym 1073741892 mod 0 scancode 68 state 1 repeat 0
- key code set to 292 (was 1073741892) based on scancode 68
SDL key sym 1073741892 mod 0 scancode 68 state 0 repeat 0
- key code set to 292 (was 1073741892) based on scancode 68
Zoom: Full Frame
SDL key sym 1073741892 mod 0 scancode 68 state 1 repeat 0
- key code set to 292 (was 1073741892) based on scancode 68
SDL key sym 1073741892 mod 0 scancode 68 state 0 repeat 0
- key code set to 292 (was 1073741892) based on scancode 68
Zoom: 724x566

Then tried F12 on the keyboard itself

Code:

SDL key sym 1073741893 mod 0 scancode 69 state 1 repeat 0
- key code set to 293 (was 1073741893) based on scancode 69
SDL key sym 1073741893 mod 0 scancode 69 state 0 repeat 0
- key code set to 293 (was 1073741893) based on scancode 69
fs_emu_menu_toggle
update_main_menu
floppy in 0: /tmp/fs-uae-63e1p9xw/Disk 1.adf
update_main_menu
floppy in 0: /tmp/fs-uae-63e1p9xw/Disk 1.adf

and finally tried sending F12+q from the Steam Controller

Code:

SDL key sym 1073741892 mod 0 scancode 68 state 1 repeat 0
- key code set to 292 (was 1073741892) based on scancode 68
SDL key sym 113 mod 0 scancode 20 state 1 repeat 0
- key code set to 113 (was 113) based on scancode 20
fs_ml_quit called
libfsemu on_quit: no quit function
calling amiga_quit
uae_quit

From the F12 and F12+q entries it appears to be receiving 1073741892 for the key sym which

sdl lists as F11. The actual keyboard press log entry shows 1073741893 which is F12.

Perhaps this is a bug with the Steam Controller for this one key. I'll take a look into that, thanks for the help.