左 Alt+tab 和左 Ctrl+左 Shift+tab 在我的外接键盘上不起作用

Question

我一直在使用外接键盘适用于 Linux Mint 桌面。
最近左 Alt+Tab（在当前打开的窗口之间切换）和左Ctrl+左Shift + Tab（转到 Chrome 中的上一个选项卡）停止工作。

笔记：如果我对上述组合使用右（ Cntrl、Shift、alt ）键，则效果很好。左键（Cntrl、Shift、alt）正在工作（不适用于上述组合）

如果有办法解决它，请告诉我。
先谢谢了

编辑：
以下命令的输出

西夫

KeyPress event, serial 39, synthetic NO, window 0x5e00001,
    root 0x6a7, subw 0x0, time 1530392, (157,-10), root:(742,289),
    state 0x10, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 39, synthetic NO, window 0x5e00001,
    root 0x6a7, subw 0x0, time 1532104, (157,-10), root:(742,289),
    state 0x18, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 39, synthetic NO, window 0x5e00001,
    root 0x6a7, subw 0x0, time 1532824, (157,-10), root:(742,289),
    state 0x10, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 39, synthetic NO, window 0x5e00001,
    root 0x6a7, subw 0x0, time 1534480, (157,-10), root:(742,289),
    state 0x18, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 39, synthetic NO, window 0x5e00001,
    root 0x6a7, subw 0x0, time 1539400, (157,-10), root:(742,289),
    state 0x10, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 39, synthetic NO, window 0x5e00001,
    root 0x6a7, subw 0x0, time 1539496, (157,-10), root:(742,289),
    state 0x11, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 39, synthetic NO, window 0x5e00001,
    root 0x6a7, subw 0x0, time 1539520, (157,-10), root:(742,289),
    state 0x10, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 39, synthetic NO, window 0x5e00001,
    root 0x6a7, subw 0x0, time 1539576, (157,-10), root:(742,289),
    state 0x11, keycode 37 (keysym 0xffe3, Control_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 39, synthetic NO, window 0x5e00001,
    root 0x6a7, subw 0x0, time 1542144, (157,-10), root:(742,289),
    state 0x15, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

setxkbmap-打印

xkb_keymap {
    xkb_keycodes  { include "evdev+aliases(qwerty)" };
    xkb_types     { include "complete"  };
    xkb_compat    { include "complete"  };
    xkb_symbols   { include "pc+us+inet(evdev)" };
    xkb_geometry  { include "pc(pc105)" };
};