Control_L + Shift_L + t 不起作用

Question

我正在运行 gentoo 和 xfec4 (4.12-r1)。

Control_L+ Shift_L+t不起作用

Control_R+ Shift_R+t作品

Control_L+ Shift_R+t作品

Control_R+ Shift_L+t作品

查看xev lctl和lshift都生成输出，但当我按下t这些修饰键时什么也没有。上面的任何其他修饰符组合都会在t按下时生成输出。我还没有在控制台中对此进行测试。

我检查了我的键盘快捷键，但该组合未映射。

有什么建议来解决这个问题吗？ 谢谢

0 blaze /home/brundage % xmodmap
xmodmap:  up to 4 keys per modifier, (keycodes in parentheses):

shift       Shift_L (0x32),  Shift_R (0x3e)
lock        Caps_Lock (0x42)
control     Control_L (0x25),  Control_R (0x69)
mod1        Alt_L (0x40),  Alt_R (0x6c),  Meta_L (0xcd)
mod2        Num_Lock (0x4d)
mod3      
mod4        Super_L (0x85),  Super_R (0x86),  Super_L (0xce),  Hyper_L (0xcf)
mod5        ISO_Level3_Shift (0x5c),  Mode_switch (0xcb)

这是来自的输出xev

KeyPress event, serial 34, synthetic NO, window 0x3400001,
    root 0x1e8, subw 0x0, time 658689015, (-431,49), root:(440,1281),
    state 0x10, keycode 37 (keysym 0xffe3, Control_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 37, synthetic NO, window 0x3400001,
    root 0x1e8, subw 0x0, time 658689552, (-431,49), root:(440,1281),
    state 0x14, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0x3400001,
    root 0x1e8, subw 0x0, time 658694240, (-431,49), root:(440,1281),
    state 0x15, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0x3400001,
    root 0x1e8, subw 0x0, time 658694560, (-431,49), root:(440,1281),
    state 0x14, keycode 37 (keysym 0xffe3, Control_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False