SUMMARY After upgrading KDE Frameworks to 5.69.0, Konsole doesn't seem to handle tmux shortcuts anymore. For example: Ctrl+b Ctrl+c should create a new tmux window and Ctrl+b Ctrl+d should dettach the current tmux session. Other terminal emulators are working flawlessly with tmux. I've tested on xterm, uxterm, qterminal and Yakuake (the last two are based on Qt). STEPS TO REPRODUCE 1. Open Konsole an exec "tmux". 2. Press Ctrl+b Ctrl+c. OBSERVED RESULT The "c" character is printed in Konsole. EXPECTED RESULT A new tmux windows is created. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: KDE Neon 5.18 KDE Plasma Version: 5.18.4 KDE Frameworks Version: 5.69.0 Qt Version: 5.14.1 ADDITIONAL INFORMATION I'm not sure whether upgrading KDE Frameworks or upgrading KDE Applications is messing things up. All I know is that one or two weeks ago tmux where working flawlessly on Konsole.
*** This bug has been marked as a duplicate of bug 419981 ***