我刚刚安装了 Ubuntu 19.10。当我更改键盘布局时，整个系统都会有点冻结。我记录了视频journalctl，显示了我在更改语言时发生的情况。我还展示htop了当我快速更改布局时进程消耗大量 CPU（在视频结束时，我快速点击热键来更改布局，音乐视频不断冻结）。
流程如下/usr/lib/xorg/Xorg vt2 -displayfd 3 -auth /run/user/1000/gdm/Xauthority -background none -noreset -keeptty -verbose 3
每次我更改布局时，journalctl 都会显示以下内容：
лют 20 13:37:25 gurland-pc gnome-shell[17519]: Window manager warning: Overwriting existing binding of keysym 31 with keysym 31 (keycode a).
лют 20 13:37:25 gurland-pc gnome-shell[17519]: Window manager warning: Overwriting existing binding of keysym 32 with keysym 32 (keycode b).
лют 20 13:37:25 gurland-pc gnome-shell[17519]: Window manager warning: Overwriting existing binding of keysym 33 with keysym 33 (keycode c).
лют 20 13:37:25 gurland-pc gnome-shell[17519]: Window manager warning: Overwriting existing binding of keysym 34 with keysym 34 (keycode d).
лют 20 13:37:25 gurland-pc gnome-shell[17519]: Window manager warning: Overwriting existing binding of keysym 35 with keysym 35 (keycode e).
лют 20 13:37:25 gurland-pc gnome-shell[17519]: Window manager warning: Overwriting existing binding of keysym 38 with keysym 38 (keycode 11).
лют 20 13:37:25 gurland-pc gnome-shell[17519]: Window manager warning: Overwriting existing binding of keysym 39 with keysym 39 (keycode 12).
лют 20 13:37:25 gurland-pc gnome-shell[17519]: Window manager warning: Overwriting existing binding of keysym 36 with keysym 36 (keycode f).
лют 20 13:37:25 gurland-pc gnome-shell[17519]: Window manager warning: Overwriting existing binding of keysym 37 with keysym 37 (keycode 10).
系统信息
操作系统：Ubuntu 19.10
核心：5.3.0-40-generic
穆特：mutter 3.34.1
Gnome外壳：GNOME Shell 3.34.1