Meta keys no longer work after 3.12 update
Submitted by mit..@..il.com
Link to original bug (#728543)
Description
After updating to Gnome 3.12 I can no longer perform certain keyboard shortcuts using tmux or emacs, for example. So far I've noticed that the following tmux keybindings are broken (from tmux's ^b-?):
bind-key M-1 select-layout even-horizontal bind-key M-2 select-layout even-vertical bind-key M-3 select-layout main-horizontal bind-key M-4 select-layout main-vertical bind-key M-5 select-layout tiled
For example, ^b M-2 used to perform the `select-layout even-vertical' tmux command. Now it seems to be being intercepted by gnome-shell or gnome-terminal or something because tmux never sees it...
I've tried re-binding the tmux prefix key to something else and that doesn't help, so it has something to do with the Meta- combination.
Another good way of reproducing the issue is by running emacs -Q -nw' in gnome-terminal and doing:
C-h k M-2' (or M-x describe-key
` M-2'). You should see that emacs doesn't ever notice that you hit M-2. Earlier versions of would let that through. Also tested in xterm and the M-2 gets through.
Tried on two different machines. In both cases, the bad behavior started happening immediately after updating to 3.12.
Version: 3.12.x
Resolution: RESOLVED DUPLICATE