每次我锁定屏幕/移除键盘并重新插入（USB）时，键盘重复率都会重置。我正在尝试通过创建 udev 规则来解决这个问题。
我创建了一条规则，/etc/udev/rules.d它21_persistent-local.rules包含：
ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="413c", ATTRS{idProduct}=="2106", RUN+="/home/user/keyboard-connect-test-script.sh"
keyboard-connect-test-script.sh包含：
echo "keyboard connected" >> /home/user/keyboard.log
我已经应用了chmod +x此脚本，并且该文件keyboard.log存在。
我已经运行sudo udevadm control --reload-rules并且没有udevadm test --action=add /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/0003:413C:2106.001C/input/input40产生明显的错误：
calling: test
version 235
This program is for debugging only, it does not run any program
specified by a RUN key. It may show incorrect results, because
some values may be different, or not available at a simulation run.
=== trie on-disk ===
tool version: 235
file size: 9212225 bytes
header size 80 bytes
strings 1931297 bytes
nodes 7280848 bytes
Load module index
Failed to read $container of PID 1, ignoring: Permission denied
Found container virtualization none.
timestamp of '/etc/systemd/network' changed
timestamp of '/lib/systemd/network' changed
Ignoring /lib/systemd/network/80-container-ve.network, because it's not a regular file with suffix .link.
Ignoring /lib/systemd/network/80-container-vz.network, because it's not a regular file with suffix .link.
Ignoring /lib/systemd/network/80-container-host0.network, because it's not a regular file with suffix .link.
Parsed configuration file /lib/systemd/network/99-default.link
Created link configuration context.
timestamp of '/etc/udev/rules.d' changed
Reading rules file: /etc/udev/rules.d/21_persistent-local.rules
Reading rules file: /lib/udev/rules.d/39-usbmuxd.rules
Reading rules file: /lib/udev/rules.d/40-usb-media-players.rules
Reading rules file: /lib/udev/rules.d/40-usb_modeswitch.rules
Reading rules file: /lib/udev/rules.d/50-firmware.rules
Reading rules file: /lib/udev/rules.d/50-udev-default.rules
Reading rules file: /lib/udev/rules.d/55-dm.rules
Reading rules file: /lib/udev/rules.d/56-hpmud.rules
Reading rules file: /lib/udev/rules.d/60-block.rules
Reading rules file: /lib/udev/rules.d/60-cdrom_id.rules
Reading rules file: /lib/udev/rules.d/60-crda.rules
Reading rules file: /lib/udev/rules.d/60-drm.rules
Reading rules file: /lib/udev/rules.d/60-evdev.rules
Reading rules file: /lib/udev/rules.d/60-fuse.rules
Reading rules file: /lib/udev/rules.d/60-input-id.rules
Reading rules file: /lib/udev/rules.d/60-libgphoto2-6.rules
Reading rules file: /lib/udev/rules.d/60-libsane.rules
Reading rules file: /lib/udev/rules.d/60-persistent-alsa.rules
Reading rules file: /lib/udev/rules.d/60-persistent-input.rules
Reading rules file: /lib/udev/rules.d/60-persistent-storage-dm.rules
Reading rules file: /lib/udev/rules.d/60-persistent-storage-tape.rules
Reading rules file: /lib/udev/rules.d/60-persistent-storage.rules
Reading rules file: /lib/udev/rules.d/60-persistent-v4l.rules
Reading rules file: /lib/udev/rules.d/60-sensor.rules
Reading rules file: /lib/udev/rules.d/60-serial.rules
Reading rules file: /lib/udev/rules.d/64-btrfs.rules
Reading rules file: /lib/udev/rules.d/64-xorg-xkb.rules
Reading rules file: /lib/udev/rules.d/65-libwacom.rules
Reading rules file: /lib/udev/rules.d/69-cd-sensors.rules
Reading rules file: /lib/udev/rules.d/69-libmtp.rules
Reading rules file: /lib/udev/rules.d/69-wacom.rules
Reading rules file: /lib/udev/rules.d/70-debian-uaccess.rules
Reading rules file: /lib/udev/rules.d/70-joystick.rules
Reading rules file: /lib/udev/rules.d/70-mouse.rules
Reading rules file: /lib/udev/rules.d/70-power-switch.rules
Reading rules file: /lib/udev/rules.d/70-printers.rules
Reading rules file: /lib/udev/rules.d/70-touchpad.rules
Reading rules file: /lib/udev/rules.d/70-uaccess.rules
Reading rules file: /lib/udev/rules.d/71-seat.rules
Reading rules file: /lib/udev/rules.d/73-seat-late.rules
Reading rules file: /lib/udev/rules.d/73-special-net-names.rules
Reading rules file: /lib/udev/rules.d/73-usb-net-by-mac.rules
Reading rules file: /lib/udev/rules.d/75-net-description.rules
Reading rules file: /lib/udev/rules.d/75-probe_mtd.rules
Reading rules file: /lib/udev/rules.d/77-mm-cinterion-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-dell-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-ericsson-mbm.rules
Reading rules file: /lib/udev/rules.d/77-mm-haier-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-huawei-net-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-longcheer-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-mtk-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-nokia-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-pcmcia-device-blacklist.rules
Reading rules file: /lib/udev/rules.d/77-mm-platform-serial-whitelist.rules
Reading rules file: /lib/udev/rules.d/77-mm-qdl-device-blacklist.rules
Reading rules file: /lib/udev/rules.d/77-mm-simtech-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-telit-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-usb-device-blacklist.rules
Reading rules file: /lib/udev/rules.d/77-mm-usb-serial-adapters-greylist.rules
Reading rules file: /lib/udev/rules.d/77-mm-x22x-port-types.rules
Reading rules file: /lib/udev/rules.d/77-mm-zte-port-types.rules
Reading rules file: /lib/udev/rules.d/78-sound-card.rules
Reading rules file: /lib/udev/rules.d/80-debian-compat.rules
Reading rules file: /lib/udev/rules.d/80-drivers.rules
Reading rules file: /lib/udev/rules.d/80-ifupdown.rules
Reading rules file: /lib/udev/rules.d/80-libinput-device-groups.rules
Reading rules file: /lib/udev/rules.d/80-mm-candidate.rules
Reading rules file: /lib/udev/rules.d/80-net-setup-link.rules
Reading rules file: /lib/udev/rules.d/80-udisks2.rules
Reading rules file: /lib/udev/rules.d/84-nm-drivers.rules
Reading rules file: /lib/udev/rules.d/85-hdparm.rules
Reading rules file: /lib/udev/rules.d/85-hplj10xx.rules
Reading rules file: /lib/udev/rules.d/85-hwclock.rules
Reading rules file: /lib/udev/rules.d/85-nm-unmanaged.rules
Reading rules file: /lib/udev/rules.d/85-regulatory.rules
Reading rules file: /lib/udev/rules.d/90-alsa-restore.rules
Reading rules file: /lib/udev/rules.d/90-console-setup.rules
Reading rules file: /lib/udev/rules.d/90-libgpod.rules
Reading rules file: /lib/udev/rules.d/90-libinput-model-quirks.rules
Reading rules file: /lib/udev/rules.d/90-pulseaudio.rules
Reading rules file: /lib/udev/rules.d/95-cd-devices.rules
Reading rules file: /lib/udev/rules.d/95-dm-notify.rules
Reading rules file: /lib/udev/rules.d/95-upower-csr.rules
Reading rules file: /lib/udev/rules.d/95-upower-hid.rules
Reading rules file: /lib/udev/rules.d/95-upower-wup.rules
Reading rules file: /lib/udev/rules.d/99-systemd.rules
rules contain 393216 bytes tokens (32768 * 12 bytes), 36236 bytes strings
28450 strings (232117 bytes), 24709 de-duplicated (199623 bytes), 3742 trie nodes used
IMPORT builtin 'hwdb' /lib/udev/rules.d/50-udev-default.rules:14
IMPORT builtin 'hwdb' returned non-zero
IMPORT builtin 'input_id' /lib/udev/rules.d/60-input-id.rules:5
capabilities/ev raw kernel attribute: 120013
capabilities/abs raw kernel attribute: 0
capabilities/rel raw kernel attribute: 0
capabilities/key raw kernel attribute: 1000000000007 ff9f207ac14057ff febeffdfffefffff fffffffffffffffe
properties raw kernel attribute: 0
test_key: checking bit block 0 for any keys; found=1
test_key: checking bit block 64 for any keys; found=1
test_key: checking bit block 128 for any keys; found=1
test_key: checking bit block 192 for any keys; found=1
IMPORT builtin 'usb_id' /lib/udev/rules.d/60-persistent-input.rules:11
/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0: if_class 3 protocol 0
IMPORT builtin 'path_id' /lib/udev/rules.d/60-persistent-input.rules:35
RUN 'kmod load $env{MODALIAS}' /lib/udev/rules.d/80-drivers.rules:5
.INPUT_CLASS=kbd
.MM_USBIFNUM=00
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/0003:413C:2106.001E/input/input42
EV=120013
ID_BUS=usb
ID_FOR_SEAT=input-pci-0000_00_1a_0-usb-0_1_4_1_0
ID_INPUT=1
ID_INPUT_KEY=1
ID_INPUT_KEYBOARD=1
ID_MODEL=Dell_QuietKey_Keyboard
ID_MODEL_ENC=Dell\x20QuietKey\x20Keyboard
ID_MODEL_ID=2106
ID_PATH=pci-0000:00:1a.0-usb-0:1.4:1.0
ID_PATH_TAG=pci-0000_00_1a_0-usb-0_1_4_1_0
ID_REVISION=0101
ID_SERIAL=DELL_Dell_QuietKey_Keyboard
ID_TYPE=hid
ID_USB_DRIVER=usbhid
ID_USB_INTERFACES=:030101:
ID_USB_INTERFACE_NUM=00
ID_VENDOR=DELL
ID_VENDOR_ENC=DELL
ID_VENDOR_ID=413c
KEY=1000000000007 ff9f207ac14057ff febeffdfffefffff fffffffffffffffe
LED=7
MODALIAS=input:b0003v413Cp2106e0110-e0,1,4,11,14,k71,72,73,74,75,77,79,7A,7B,7C,7D,7E,7F,80,81,82,83,84,85,86,87,88,89,8A,8C,8E,96,98,9E,9F,A1,A3,A4,A5,A6,AD,B0,B1,B2,B3,B4,B7,B8,B9,BA,BB,BC,BD,BE,BF,C0,C1,C2,F0,ram4,l0,1,2,sfw
MSC=10
NAME="DELL Dell QuietKey Keyboard"
PHYS="usb-0000:00:1a.0-1.4/input0"
PRODUCT=3/413c/2106/110
PROP=0
SUBSYSTEM=input
TAGS=:seat:
UNIQ=""
USEC_INITIALIZED=422868148985
run: 'kmod load input:b0003v413Cp2106e0110-e0,1,4,11,14,k71,72,73,74,75,77,79,7A,7B,7C,7D,7E,7F,80,81,82,83,84,85,86,87,88,89,8A,8C,8E,96,98,9E,9F,A1,A3,A4,A5,A6,AD,B0,B1,B2,B3,B4,B7,B8,B9,BA,BB,BC,BD,BE,BF,C0,C1,C2,F0,ram4,l0,1,2,sfw'
Unload module index
Unloaded link configuration context.
我从获得了idVendor和代码，其中相关部分是：idProductlsusb -v
Bus 001 Device 024: ID 413c:2106 Dell Computer Corp. Dell QuietKey Keyboard
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x413c Dell Computer Corp.
idProduct 0x2106 Dell QuietKey Keyboard
bcdDevice 1.01
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 65
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
然而，我拔下并重新插入键盘几次，文件keyboard.log仍然是空白的。
答案1
问题是 bash 脚本缺少 shebang。
keyboard-connect-test-script.sh变成：
#!/bin/bash
echo "keyboard connected" >> /home/user/keyboard.log
它现在可以工作，但keyboard connected每次拔出/插入事件都会重复两次。为什么？