On my ASUS ExpertBook B3404CVA running Kubuntu 24.04 (KDE Plasma 5.27.11, X11, Kernel 6.8.0-52-generic), I set the usual keyboard layout switcher via: /etc/default/keyboard: XKBLAYOUT = "us,ru" XKBOPTIONS = "grp:menu_toggle" Enter fullscreen mode Exit fullscreen mode Normally I set up layout switching through the standard graphical interface in Kubuntu — never had to think twice. But on this machine, it simply didn’t work. I had to fall back on this method. And even then, it works only intermittently : sometimes with the Fn key, sometimes without, and there's no clear logic when or why. 🚨 Symptoms Layout switching works... sometimes Sometimes requires holding Fn to work Sometimes doesn’t work at all After suspend/resume — it starts working again After reboot — might stop again In short: totally inconsistent And here's the kicker: If I reboot , I can switch layout with a single press of the Right Ctrl /Menu key.…