I don't know if this started with Plasma 5 in 15.04 or if it's just in 15.10, but my compose key is no longer working in GTK programs. I went to System Settings->Input Devices->Keyboard->Advanced and my Compose Key is still set to Left Win as it has been since KDE4. But I just discovered that it's not working in Firefox or Chrome. It's working in Qt programs, like Kate and others, but not GTK programs.
I did a Google search and found this: https://userbase.kde.org/ComposeKey#..._Configuration But I don't have a /etc/X11/xinit/xinput.d folder, so I can't really follow those directions. How can I fix this?
I did a Google search and found this: https://userbase.kde.org/ComposeKey#..._Configuration But I don't have a /etc/X11/xinit/xinput.d folder, so I can't really follow those directions. How can I fix this?