Mangohud does not come back when pressing R_Shift+F12

[ngraham20]

When starting gamescope with --mangoapp, the mangohud overlay comes up correctly, but if I hide it by pressing R_Shift+F12, then I cannot make it come back with the same key command

[ninja-]

I reproduced this on 3.15.9

[TahaRha]

any fix for this issue? i have the same problem on 3.15.5

[matte-schwartz]

in the DRM backend: mangohudctl set no_display 1 and 0 both work, while the R_Shift+F12 hotkey only works once

in the Wayland backend: mangohudctl set no_display 1 and R_Shift+F12 both black out the entire presentation window when no_display is toggled. you can recover with mangohudctl set no_display 0, but only if you toggled with the mangohudctl command and not the hotkey

in the SDL backend: seems the same as the Wayland backend

EDIT: the black screen part has already been reported: #1421