On Sun, 09 Jun 2024 at 18:16:01 +0100, Simon McVittie wrote: > However, the French layout in /usr/share/X11/xkb/symbols/fr says that > pressing the 7 key (with AltGr held) sends "grave" like my UK English > layout, and not "dead_grave" like the German layout. So if that previously > participated in dead-key sequences, I don't understand why...
Were you perhaps using the "latin9" or "French (legacy, alt.)" keyboard layout before? Unlike the default French keyboard layout, the latin9 layout *does* map AltGr+[7] to "dead_grave", a dead key. I don't know the name of that keyboard layout in French - it might be "Français (obsolète, variante)". Perhaps a French-speaking developer could help here? What is the output of these commands? cat /etc/default/keyboard and dconf dump /org/gnome/desktop/input-sources/