我在 t430s 笔记本电脑上安装了 16.04。FN 键不起作用，这意味着所有FN组合键都不起作用。（例如，FN+F8应该降低屏幕亮度。
xev在终端中运行显示，当我按下时没有任何内容注册FN。FN按键组合仅注册正常的 Fkey （例如FN+F8显示与 xev 中相同的按键事件F8。
dmesg | grep thin返回此：
[ 15.600090] thinkpad_acpi: ThinkPad ACPI Extras v0.25
[ 15.600093] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 15.600094] thinkpad_acpi: ThinkPad BIOS G7ET60WW (2.02 ), EC unknown
[ 15.600096] thinkpad_acpi: Lenovo ThinkPad T430s, model 2356LNG
[ 15.608778] thinkpad_acpi: detected a 16-level brightness capable ThinkPad
[ 15.608878] thinkpad_acpi: radio switch found; radios are enabled
[ 15.608895] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
[ 15.608896] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
[ 15.610449] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is blocked
[ 15.611064] thinkpad_acpi: rfkill switch tpacpi_wwan_sw: radio is unblocked
[ 15.614049] thinkpad_acpi: Standard ACPI backlight interface available, not loading [ 15.600090] thinkpad_acpi: ThinkPad ACPI Extras v0.25
[ 15.600093] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 15.600094] thinkpad_acpi: ThinkPad BIOS G7ET60WW (2.02 ), EC unknown
[ 15.600096] thinkpad_acpi: Lenovo ThinkPad T430s, model 2356LNG
[ 15.608778] thinkpad_acpi: detected a 16-level brightness capable ThinkPad
[ 15.608878] thinkpad_acpi: radio switch found; radios are enabled
[ 15.608895] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
[ 15.608896] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
[ 15.610449] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is blocked
[ 15.611064] thinkpad_acpi: rfkill switch tpacpi_wwan_sw: radio is unblocked
[ 15.614049] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one
[ 15.623189] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input8
[ 4532.846826] thinkpad_acpi: deprecated sysfs attribute: access by process with PID 4434
[ 4532.846832] thinkpad_acpi: WARNING: sysfs attribute hotkey_enable is deprecated and will be removed. Hotkey reporting is always enabled
[ 4665.791698] thinkpad_acpi: deprecated sysfs attribute: access by process with PID 4491
[ 4665.791706] thinkpad_acpi: WARNING: sysfs attribute bluetooth_enable is deprecated and will be removed. Please switch to generic rfkill before year 2010native one
[ 15.623189] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input8
[ 4532.846826] thinkpad_acpi: deprecated sysfs attribute: access by process with PID 4434
[ 4532.846832] thinkpad_acpi: WARNING: sysfs attribute hotkey_enable is deprecated and will be removed. Hotkey reporting is always enabled
[ 4665.791698] thinkpad_acpi: deprecated sysfs attribute: access by process with PID 4491
[ 4665.791706] thinkpad_acpi: WARNING: sysfs attribute bluetooth_enable is deprecated and will be removed. Please switch to generic rfkill before year 2010
当我冒险去做/sys/devices/platform/thinkpad_acpi并执行时ls -l hotkey_* | cut -d' ' -f9，我得到了 9 个文件：
hotkey_all_mask
hotkey_bios_enabled
hotkey_bios_mask
hotkey_enable
hotkey_mask
hotkey_poll_freq
hotkey_radio_sw
hotkey_recommended_mask
hotkey_source_mask
具有以下值（cat hotkey*）
0x07fffffb
0
0x00000808
1
0x078c7ffb
10
1
0x078c7ffb
0x00000000
所以基本上 - 我不知道如何让 FN 键工作。任何帮助都非常感谢
答案1
看来我的问题一定是由于 FN 键故障/失效造成的。这是一个硬件问题。
我的“解决方案”：通过相关的 bios 选项交换 ctrl 和 FN。然后我没有左 ctrl 键。所以我用 caps lock 交换了左 ctrl。
这个的 xmapmod 可以通过 google 获得，但为了方便后人理解，这个过程如下：
首先备份您当前的 xmodmap：。然后xmodmap -pke > Xmodmap_orig创建现有 xmodmap 的副本：xmodmap -pke > .Xmodmap。现在编辑此文件：vim .Xmodmap并将以下内容粘贴到文件底部
! Switch caps lock and (left) control
remove Lock = Caps_Lock
remove Control = Control_L
keysym Control_L = Caps_Lock
keysym Caps_Lock = Control_L
add Lock = Caps_Lock
add Control = Control_L
保存并获取修改后的 xmodmap：xmodmap .Xmodmap
附言：如果您是 vim 新手，那么也许可以选择nano。