尝试了不同的指南，例如Ubuntu 14.04 中的触摸板突然不工作
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Logitech USB Optical Mouse id=10 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=12 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Sleep Button id=9 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
↳ Dell WMI hotkeys id=13 [slave keyboard (3)]
↳ Integrated_Webcam_HD id=14 [slave keyboard (3)]
正如你在 xinput 上看到的，只出现了触摸板，但都显示在输入设备中
$ cat /proc/bus/input/devices
I: Bus=0019 Vendor=0000 Product=0005 Version=0000
N: Name="Lid Switch"
P: Phys=PNP0C0D/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
U: Uniq=
H: Handlers=event0
B: PROP=0
B: EV=21
B: SW=1
I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=PNP0C0C/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1
U: Uniq=
H: Handlers=kbd event1
B: PROP=0
B: EV=3
B: KEY=10000000000000 0
I: Bus=0019 Vendor=0000 Product=0003 Version=0000
N: Name="Sleep Button"
P: Phys=PNP0C0E/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input2
U: Uniq=
H: Handlers=kbd event2
B: PROP=0
B: EV=3
B: KEY=4000 0 0
I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input3
U: Uniq=
H: Handlers=kbd event3
B: PROP=0
B: EV=3
B: KEY=10000000000000 0
I: Bus=0011 Vendor=0001 Product=0001 Version=ab41
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/devices/platform/i8042/serio0/input/input4
U: Uniq=
H: Handlers=sysrq kbd event4 leds
B: PROP=0
B: EV=120013
B: KEY=1100f02902000 8380307cf910f001 feffffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=7
I: Bus=0019 Vendor=0000 Product=0006 Version=0000
N: Name="Video Bus"
P: Phys=LNXVIDEO/video/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input7
U: Uniq=
H: Handlers=kbd event5
B: PROP=0
B: EV=3
B: KEY=3e000b00000000 0 0 0
I: Bus=0011 Vendor=0002 Product=0007 Version=01a1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input6
U: Uniq=
H: Handlers=mouse0 event6
B: PROP=5
B: EV=b
B: KEY=e520 10000 0 0 0 0
B: ABS=660800011000003
I: Bus=0003 Vendor=046d Product=c05a Version=0111
N: Name="Logitech USB Optical Mouse"
P: Phys=usb-0000:00:14.0-2/input0
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/0003:046D:C05A.0001/input/input8
U: Uniq=
H: Handlers=mouse1 event7
B: PROP=0
B: EV=17
B: KEY=70000 0 0 0 0
B: REL=103
B: MSC=10
I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="Dell WMI hotkeys"
P: Phys=wmi/input0
S: Sysfs=/devices/virtual/input/input9
U: Uniq=
H: Handlers=kbd event8
B: PROP=0
B: EV=13
B: KEY=101000b00000400 100000 e000000000000 0
B: MSC=10
I: Bus=0003 Vendor=0bda Product=568b Version=6318
N: Name="Integrated_Webcam_HD"
P: Phys=usb-0000:00:14.0-5/button
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.0/input/input10
U: Uniq=
H: Handlers=kbd event9
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0
通过 liveusb 启动，它们工作正常。
有什么线索吗？
编辑：这里是我从实时 USB 运行的相同命令：
xinput list --long
⎡ Virtual core pointer id=2 [master pointer (3)]
Reporting 8 classes:
Class originated from: 12. Type: XIButtonClass
Buttons supported: 12
Button labels: "Button Left" "Button Middle" "Button Right" "Button Wheel Up" "Button Wheel Down" "Button Horiz Wheel Left" "Button Horiz Wheel Right" None None None None None
Button state:
Class originated from: 12. Type: XIValuatorClass
Detail for Valuator 0:
Label: Rel X
Range: 0.000000 - 1216.000000
Resolution: 12000 units/m
Mode: relative
Class originated from: 12. Type: XIValuatorClass
Detail for Valuator 1:
Label: Rel Y
Range: 0.000000 - 680.000000
Resolution: 12000 units/m
Mode: relative
Class originated from: 12. Type: XIValuatorClass
Detail for Valuator 2:
Label: Rel Horiz Scroll
Range: 0.000000 - -1.000000
Resolution: 0 units/m
Mode: relative
Class originated from: 12. Type: XIValuatorClass
Detail for Valuator 3:
Label: Rel Vert Scroll
Range: 0.000000 - -1.000000
Resolution: 0 units/m
Mode: relative
Class originated from: 12. Type: XIScrollClass
Scroll info for Valuator 2
type: 2 (horizontal)
increment: 27.000000
flags: 0x0
Class originated from: 12. Type: XIScrollClass
Scroll info for Valuator 3
type: 1 (vertical)
increment: 27.000000
flags: 0x0
Class originated from: 12. Type: XITouchClass
Touch mode: dependent
Max number of touches: 5
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
Reporting 3 classes:
Class originated from: 4. Type: XIButtonClass
Buttons supported: 10
Button labels: "Button Left" "Button Middle" "Button Right" "Button Wheel Up" "Button Wheel Down" "Button Horiz Wheel Left" "Button Horiz Wheel Right" None None None
Button state:
Class originated from: 4. Type: XIValuatorClass
Detail for Valuator 0:
Label: Rel X
Range: -1.000000 - -1.000000
Resolution: 0 units/m
Mode: relative
Class originated from: 4. Type: XIValuatorClass
Detail for Valuator 1:
Label: Rel Y
Range: -1.000000 - -1.000000
Resolution: 0 units/m
Mode: relative
⎜ ↳ ELAN Touchscreen id=10 [slave pointer (2)]
Reporting 9 classes:
Class originated from: 10. Type: XIButtonClass
Buttons supported: 5
Button labels: "Button Unknown" "Button Unknown" "Button Unknown" "Button Wheel Up" "Button Wheel Down"
Button state:
Class originated from: 10. Type: XIValuatorClass
Detail for Valuator 0:
Label: Abs MT Position X
Range: 0.000000 - 3360.000000
Resolution: 11000 units/m
Mode: absolute
Current value: 29.000000
Class originated from: 10. Type: XIValuatorClass
Detail for Valuator 1:
Label: Abs MT Position Y
Range: 0.000000 - 1872.000000
Resolution: 11000 units/m
Mode: absolute
Current value: 185.000000
Class originated from: 10. Type: XIValuatorClass
Detail for Valuator 2:
Label: Abs MT Touch Major
Range: 0.000000 - 255.000000
Resolution: 0 units/m
Mode: absolute
Current value: 1.000000
Class originated from: 10. Type: XIValuatorClass
Detail for Valuator 3:
Label: Abs MT Touch Minor
Range: 0.000000 - 255.000000
Resolution: 0 units/m
Mode: absolute
Current value: 1.000000
Class originated from: 10. Type: XIValuatorClass
Detail for Valuator 4:
Label: Abs MT Orientation
Range: 0.000000 - 1.000000
Resolution: 0 units/m
Mode: absolute
Current value: 0.000000
Class originated from: 10. Type: XIValuatorClass
Detail for Valuator 5:
Label: Abs MT Tool X
Range: 0.000000 - 3360.000000
Resolution: 11000 units/m
Mode: absolute
Current value: 29.000000
Class originated from: 10. Type: XIValuatorClass
Detail for Valuator 6:
Label: Abs MT Tool Y
Range: 0.000000 - 1872.000000
Resolution: 11000 units/m
Mode: absolute
Current value: 186.000000
Class originated from: 10. Type: XITouchClass
Touch mode: direct
Max number of touches: 10
⎜ ↳ DLL075B:01 06CB:76AF Touchpad id=12 [slave pointer (2)]
Reporting 8 classes:
Class originated from: 12. Type: XIButtonClass
Buttons supported: 12
Button labels: "Button Left" "Button Middle" "Button Right" "Button Wheel Up" "Button Wheel Down" "Button Horiz Wheel Left" "Button Horiz Wheel Right" None None None None None
Button state:
Class originated from: 12. Type: XIValuatorClass
Detail for Valuator 0:
Label: Rel X
Range: 0.000000 - 1216.000000
Resolution: 12000 units/m
Mode: relative
Class originated from: 12. Type: XIValuatorClass
Detail for Valuator 1:
Label: Rel Y
Range: 0.000000 - 680.000000
Resolution: 12000 units/m
Mode: relative
Class originated from: 12. Type: XIValuatorClass
Detail for Valuator 2:
Label: Rel Horiz Scroll
Range: 0.000000 - -1.000000
Resolution: 0 units/m
Mode: relative
Class originated from: 12. Type: XIValuatorClass
Detail for Valuator 3:
Label: Rel Vert Scroll
Range: 0.000000 - -1.000000
Resolution: 0 units/m
Mode: relative
Class originated from: 12. Type: XIScrollClass
Scroll info for Valuator 2
type: 2 (horizontal)
increment: 27.000000
flags: 0x0
Class originated from: 12. Type: XIScrollClass
Scroll info for Valuator 3
type: 1 (vertical)
increment: 27.000000
flags: 0x0
Class originated from: 12. Type: XITouchClass
Touch mode: dependent
Max number of touches: 5
⎜ ↳ SynPS/2 Synaptics TouchPad id=15 [slave pointer (2)]
Reporting 9 classes:
Class originated from: 15. Type: XIButtonClass
Buttons supported: 12
Button labels: "Button Left" "Button Middle" "Button Right" "Button Wheel Up" "Button Wheel Down" "Button Horiz Wheel Left" "Button Horiz Wheel Right" None None None None None
Button state:
Class originated from: 15. Type: XIValuatorClass
Detail for Valuator 0:
Label: Rel X
Range: 1276.000000 - 5666.000000
Resolution: 0 units/m
Mode: relative
Class originated from: 15. Type: XIValuatorClass
Detail for Valuator 1:
Label: Rel Y
Range: 1118.000000 - 4734.000000
Resolution: 0 units/m
Mode: relative
Class originated from: 15. Type: XIValuatorClass
Detail for Valuator 2:
Label: Rel Horiz Scroll
Range: 0.000000 - -1.000000
Resolution: 0 units/m
Mode: relative
Class originated from: 15. Type: XIValuatorClass
Detail for Valuator 3:
Label: Rel Vert Scroll
Range: 0.000000 - -1.000000
Resolution: 0 units/m
Mode: relative
Class originated from: 15. Type: XIValuatorClass
Detail for Valuator 4:
Label: Abs MT Pressure
Range: 0.000000 - 255.000000
Resolution: 0 units/m
Mode: absolute
Current value: 0.000000
Class originated from: 15. Type: XIScrollClass
Scroll info for Valuator 2
type: 2 (horizontal)
increment: 113.000000
flags: 0x0
Class originated from: 15. Type: XIScrollClass
Scroll info for Valuator 3
type: 1 (vertical)
increment: 113.000000
flags: 0x0
Class originated from: 15. Type: XITouchClass
Touch mode: dependent
Max number of touches: 2
⎣ Virtual core keyboard id=3 [master keyboard (2)]
Reporting 1 classes:
Class originated from: 14. Type: XIKeyClass
Keycodes supported: 248
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
Reporting 1 classes:
Class originated from: 5. Type: XIKeyClass
Keycodes supported: 248
↳ Power Button id=6 [slave keyboard (3)]
Reporting 1 classes:
Class originated from: 6. Type: XIKeyClass
Keycodes supported: 248
↳ Video Bus id=7 [slave keyboard (3)]
Reporting 1 classes:
Class originated from: 7. Type: XIKeyClass
Keycodes supported: 248
↳ Power Button id=8 [slave keyboard (3)]
Reporting 1 classes:
Class originated from: 8. Type: XIKeyClass
Keycodes supported: 248
↳ Sleep Button id=9 [slave keyboard (3)]
Reporting 1 classes:
Class originated from: 9. Type: XIKeyClass
Keycodes supported: 248
↳ Integrated_Webcam_HD id=11 [slave keyboard (3)]
Reporting 1 classes:
Class originated from: 11. Type: XIKeyClass
Keycodes supported: 248
↳ Intel HID events id=13 [slave keyboard (3)]
Reporting 1 classes:
Class originated from: 13. Type: XIKeyClass
Keycodes supported: 248
↳ AT Translated Set 2 keyboard id=14 [slave keyboard (3)]
Reporting 1 classes:
Class originated from: 14. Type: XIKeyClass
Keycodes supported: 248
↳ Dell WMI hotkeys id=16 [slave keyboard (3)]
Reporting 1 classes:
Class originated from: 16. Type: XIKeyClass
Keycodes supported: 248
$ cat /proc/
I: Bus=0019 Vendor=0000 Product=0005 Version=0000
N: Name="Lid Switch"
P: Phys=PNP0C0D/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
U: Uniq=
H: Handlers=event0
B: PROP=0
B: EV=21
B: SW=1
I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=PNP0C0C/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1
U: Uniq=
H: Handlers=kbd event1
B: PROP=0
B: EV=3
B: KEY=10000000000000 0
I: Bus=0019 Vendor=0000 Product=0003 Version=0000
N: Name="Sleep Button"
P: Phys=PNP0C0E/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input2
U: Uniq=
H: Handlers=kbd event2
B: PROP=0
B: EV=3
B: KEY=4000 0 0
I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input3
U: Uniq=
H: Handlers=kbd event3
B: PROP=0
B: EV=3
B: KEY=10000000000000 0
I: Bus=0011 Vendor=0001 Product=0001 Version=ab41
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/devices/platform/i8042/serio0/input/input4
U: Uniq=
H: Handlers=sysrq kbd event4 leds
B: PROP=0
B: EV=120013
B: KEY=1100f02902000 8380307cf910f001 feffffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=7
I: Bus=0019 Vendor=0000 Product=0006 Version=0000
N: Name="Video Bus"
P: Phys=LNXVIDEO/video/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input7
U: Uniq=
H: Handlers=kbd event5
B: PROP=0
B: EV=3
B: KEY=3e000b00000000 0 0 0
I: Bus=0011 Vendor=0002 Product=0007 Version=01a1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input6
U: Uniq=
H: Handlers=mouse0 event6
B: PROP=5
B: EV=b
B: KEY=e520 10000 0 0 0 0
B: ABS=660800011000003
I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="Intel HID events"
P: Phys=
S: Sysfs=/devices/platform/INT33D5:00/input/input8
U: Uniq=
H: Handlers=rfkill kbd event7
B: PROP=0
B: EV=13
B: KEY=81000300000000 5000004000 1e294000000020 0
B: MSC=10
I: Bus=0003 Vendor=04f3 Product=20d0 Version=0110
N: Name="ELAN Touchscreen"
P: Phys=usb-0000:00:14.0-4/input0
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/0003:04F3:20D0.0001/input/input9
U: Uniq=
H: Handlers=mouse1 event8
B: PROP=2
B: EV=b
B: KEY=400 0 0 0 0 0
B: ABS=3273800000000003
I: Bus=0003 Vendor=0bda Product=568b Version=6318
N: Name="Integrated_Webcam_HD"
P: Phys=usb-0000:00:14.0-5/button
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.0/input/input11
U: Uniq=
H: Handlers=kbd event9
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0
I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="Dell WMI hotkeys"
P: Phys=wmi/input0
S: Sysfs=/devices/virtual/input/input12
U: Uniq=
H: Handlers=kbd event10
B: PROP=0
B: EV=13
B: KEY=101000b00000400 100000 e000000000000 0
B: MSC=10
I: Bus=0018 Vendor=06cb Product=76af Version=0100
N: Name="DLL075B:01 06CB:76AF Touchpad"
P: Phys=i2c-DLL075B:01
S: Sysfs=/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-7/i2c-DLL075B:01/0018:06CB:76AF.0002/input/input13
U: Uniq=
H: Handlers=mouse2 event11
B: PROP=5
B: EV=b
B: KEY=e520 10000 0 0 0 0
B: ABS=260800000000003
答案1
已关注这安装内核 4.9 的指南现在一切正常