我在装有 Ubuntu 20.04 的笔记本电脑 Dell Inspiron 7506 2n1 上遇到了触摸板正常工作的问题。
为了执行左键单击，我需要触摸触摸板 3 次（而不是通常的 2 次）。我无法通过用两根手指触摸触摸板来执行右键单击，也无法通过这种方式滚动。
我注意到该命令xinput list返回以下内容：
Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ CUST0000:00 04F3:2A4B id=9 [slave pointer (2)]
⎜ ↳ PS/2 Generic Mouse id=13 [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)]
↳ Sleep Button id=7 [slave keyboard (3)]
↳ Integrated_Webcam_HD: Integrate id=8 [slave keyboard (3)]
↳ CUST0000:00 04F3:2A4B id=10 [slave keyboard (3)]
↳ Dell WMI hotkeys id=11 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=12 [slave keyboard (3)]
禁用“PS/2 通用鼠标”（使用xinput disable 13）会禁用触摸板，因此它的 id=13。但我不明白为什么它没有被识别为触摸板？我可以做些什么来正确检测到它吗？
根据@ob2的要求，sudo journalctl -b返回以下内容：
-- Logs begin at Tue 2020-11-10 22:46:36 CET, end at Wed 2020-11-11 14:25:20 CE>
nov. 11 10:22:48 MACHINE kernel: Linux version 5.4.0-52-generic (buildd@lgw01-a>
nov. 11 10:22:48 MACHINE kernel: Command line: BOOT_IMAGE=/vmlinuz-5.4.0-52-gen>
nov. 11 10:22:48 MACHINE kernel: KERNEL supported cpus:
nov. 11 10:22:48 MACHINE kernel: Intel GenuineIntel
nov. 11 10:22:48 MACHINE kernel: AMD AuthenticAMD
nov. 11 10:22:48 MACHINE kernel: Hygon HygonGenuine
nov. 11 10:22:48 MACHINE kernel: Centaur CentaurHauls
nov. 11 10:22:48 MACHINE kernel: zhaoxin Shanghai
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 >
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE >
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX >
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x020: 'AVX->
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x040: 'AVX->
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x080: 'AVX->
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x200: 'Prot>
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[2]: 576, xstate_sizes[>
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[5]: 832, xstate_sizes[>
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[6]: 896, xstate_sizes[>
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[7]: 1408, xstate_sizes[>
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[9]: 2432, xstate_sizes[>
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Enabled xstate features 0x2e7, contex>
nov. 11 10:22:48 MACHINE kernel: BIOS-provided physical RAM map:
lines 1-23...skipping...
-- Logs begin at Tue 2020-11-10 22:46:36 CET, end at Wed 2020-11-11 14:25:20 CET. --
nov. 11 10:22:48 MACHINE kernel: Linux version 5.4.0-52-generic (buildd@lgw01-amd64-060) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #57-Ubuntu SMP Thu Oct 15 10:57:00 UTC 2020 (Ubuntu 5.4.0-52.57-generic>
nov. 11 10:22:48 MACHINE kernel: Command line: BOOT_IMAGE=/vmlinuz-5.4.0-52-generic root=/dev/mapper/vgubuntu-root ro quiet splash acpi_backlight=vendor vt.handoff=7
nov. 11 10:22:48 MACHINE kernel: KERNEL supported cpus:
nov. 11 10:22:48 MACHINE kernel: Intel GenuineIntel
nov. 11 10:22:48 MACHINE kernel: AMD AuthenticAMD
nov. 11 10:22:48 MACHINE kernel: Hygon HygonGenuine
nov. 11 10:22:48 MACHINE kernel: Centaur CentaurHauls
nov. 11 10:22:48 MACHINE kernel: zhaoxin Shanghai
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x020: 'AVX-512 opmask'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x080: 'AVX-512 ZMM_Hi256'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x200: 'Protection Keys User registers'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[5]: 832, xstate_sizes[5]: 64
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[6]: 896, xstate_sizes[6]: 512
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[7]: 1408, xstate_sizes[7]: 1024
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[9]: 2432, xstate_sizes[9]: 8
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Enabled xstate features 0x2e7, context size is 2440 bytes, using 'compacted' format.
nov. 11 10:22:48 MACHINE kernel: BIOS-provided physical RAM map:
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009efff] usable
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x000000000009f000-0x00000000000fffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000000100000-0x000000005f32afff] usable
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x000000005f32b000-0x0000000063110fff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000063111000-0x0000000063971fff] ACPI NVS
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000063972000-0x0000000063bfefff] ACPI data
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000063bff000-0x0000000063bfffff] usable
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000063c00000-0x0000000067ffffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000068600000-0x00000000687fffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000069000000-0x00000000707fffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x00000000c0000000-0x00000000cfffffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x00000000fed20000-0x00000000fed7ffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000100000000-0x000000048f7fffff] usable
nov. 11 10:22:48 MACHINE kernel: NX (Execute Disable) protection: active
nov. 11 10:22:48 MACHINE kernel: efi: EFI v2.70 by Dell
nov. 11 10:22:48 MACHINE kernel: efi: ACPI=0x63bfe000 ACPI 2.0=0x63bfe014 TPMFinalLog=0x63917000 SMBIOS=0x5f9e3000 ESRT=0x5f991e98 MEMATTR=0x5aa85418 TPMEventLog=0x5a96f018
nov. 11 10:22:48 MACHINE kernel: secureboot: Secure boot enabled
nov. 11 10:22:48 MACHINE kernel: Kernel is locked down from EFI Secure Boot mode; see man kernel_lockdown.7
nov. 11 10:22:48 MACHINE kernel: SMBIOS 3.2 present.
nov. 11 10:22:48 MACHINE kernel: DMI: Dell Inc. Inspiron 7506 2n1/04NTGP, BIOS 1.1.6 10/27/2020
nov. 11 10:22:48 MACHINE kernel: tsc: Detected 2800.000 MHz processor
nov. 11 10:22:48 MACHINE kernel: tsc: Detected 2803.200 MHz TSC
nov. 11 10:22:48 MACHINE kernel: e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
nov. 11 10:22:48 MACHINE kernel: e820: remove [mem 0x000a0000-0x000fffff] usable
nov. 11 10:22:48 MACHINE kernel: last_pfn = 0x48f800 max_arch_pfn = 0x400000000
nov. 11 10:22:48 MACHINE kernel: MTRR default type: write-back
nov. 11 10:22:48 MACHINE kernel: MTRR fixed ranges enabled:
nov. 11 10:22:48 MACHINE kernel: 00000-9FFFF write-back
nov. 11 10:22:48 MACHINE kernel: A0000-BFFFF uncachable
nov. 11 10:22:48 MACHINE kernel: C0000-FFFFF write-protect
nov. 11 10:22:48 MACHINE kernel: MTRR variable ranges enabled:
nov. 11 10:22:48 MACHINE kernel: 0 base 0080000000 mask 7F80000000 uncachable
nov. 11 10:22:48 MACHINE kernel: 1 base 0070000000 mask 7FF0000000 uncachable
nov. 11 10:22:48 MACHINE kernel: 2 base 006C000000 mask 7FFC000000 uncachable
lines 1-58
-- Logs begin at Tue 2020-11-10 22:46:36 CET, end at Wed 2020-11-11 14:25:20 CET. --
nov. 11 10:22:48 MACHINE kernel: Linux version 5.4.0-52-generic (buildd@lgw01-amd64-060) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #57-Ubuntu SMP Thu Oct 15 10:57:00 UTC 2020 (Ubuntu 5.4.0-52.57-g>
nov. 11 10:22:48 MACHINE kernel: Command line: BOOT_IMAGE=/vmlinuz-5.4.0-52-generic root=/dev/mapper/vgubuntu-root ro quiet splash acpi_backlight=vendor vt.handoff=7
nov. 11 10:22:48 MACHINE kernel: KERNEL supported cpus:
nov. 11 10:22:48 MACHINE kernel: Intel GenuineIntel
nov. 11 10:22:48 MACHINE kernel: AMD AuthenticAMD
nov. 11 10:22:48 MACHINE kernel: Hygon HygonGenuine
nov. 11 10:22:48 MACHINE kernel: Centaur CentaurHauls
nov. 11 10:22:48 MACHINE kernel: zhaoxin Shanghai
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x020: 'AVX-512 opmask'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x080: 'AVX-512 ZMM_Hi256'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Supporting XSAVE feature 0x200: 'Protection Keys User registers'
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[5]: 832, xstate_sizes[5]: 64
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[6]: 896, xstate_sizes[6]: 512
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[7]: 1408, xstate_sizes[7]: 1024
nov. 11 10:22:48 MACHINE kernel: x86/fpu: xstate_offset[9]: 2432, xstate_sizes[9]: 8
nov. 11 10:22:48 MACHINE kernel: x86/fpu: Enabled xstate features 0x2e7, context size is 2440 bytes, using 'compacted' format.
nov. 11 10:22:48 MACHINE kernel: BIOS-provided physical RAM map:
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009efff] usable
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x000000000009f000-0x00000000000fffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000000100000-0x000000005f32afff] usable
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x000000005f32b000-0x0000000063110fff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000063111000-0x0000000063971fff] ACPI NVS
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000063972000-0x0000000063bfefff] ACPI data
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000063bff000-0x0000000063bfffff] usable
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000063c00000-0x0000000067ffffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000068600000-0x00000000687fffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000069000000-0x00000000707fffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x00000000c0000000-0x00000000cfffffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x00000000fed20000-0x00000000fed7ffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
nov. 11 10:22:48 MACHINE kernel: BIOS-e820: [mem 0x0000000100000000-0x000000048f7fffff] usable
nov. 11 10:22:48 MACHINE kernel: NX (Execute Disable) protection: active
nov. 11 10:22:48 MACHINE kernel: efi: EFI v2.70 by Dell
nov. 11 10:22:48 MACHINE kernel: efi: ACPI=0x63bfe000 ACPI 2.0=0x63bfe014 TPMFinalLog=0x63917000 SMBIOS=0x5f9e3000 ESRT=0x5f991e98 MEMATTR=0x5aa85418 TPMEventLog=0x5a96f018
nov. 11 10:22:48 MACHINE kernel: secureboot: Secure boot enabled
nov. 11 10:22:48 MACHINE kernel: Kernel is locked down from EFI Secure Boot mode; see man kernel_lockdown.7
nov. 11 10:22:48 MACHINE kernel: SMBIOS 3.2 present.
nov. 11 10:22:48 MACHINE kernel: DMI: Dell Inc. Inspiron 7506 2n1/04NTGP, BIOS 1.1.6 10/27/2020
nov. 11 10:22:48 MACHINE kernel: tsc: Detected 2800.000 MHz processor
nov. 11 10:22:48 MACHINE kernel: tsc: Detected 2803.200 MHz TSC
nov. 11 10:22:48 MACHINE kernel: e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
nov. 11 10:22:48 MACHINE kernel: e820: remove [mem 0x000a0000-0x000fffff] usable
nov. 11 10:22:48 MACHINE kernel: last_pfn = 0x48f800 max_arch_pfn = 0x400000000
nov. 11 10:22:48 MACHINE kernel: MTRR default type: write-back
nov. 11 10:22:48 MACHINE kernel: MTRR fixed ranges enabled:
nov. 11 10:22:48 MACHINE kernel: 00000-9FFFF write-back
nov. 11 10:22:48 MACHINE kernel: A0000-BFFFF uncachable
nov. 11 10:22:48 MACHINE kernel: C0000-FFFFF write-protect
nov. 11 10:22:48 MACHINE kernel: MTRR variable ranges enabled:
lines 1-55
答案1
大多数笔记本电脑上的ToughPad有两种检测方式：
- 作为I2C鼠标，具有多点触摸功能。
- 作为 PS/2 鼠标，在 I2C 驱动程序不可用时使用（例如在 Windows 设置期间）。
如果您的鼠标被检测为 PS/2，则可能意味着您的 I2C 驱动程序缺失或内核默认将鼠标启用为 PS/2。这里有一个小过程可以尝试修复该问题。
现在很难找到正确的进程（如果可行的话），但您可以先使用以下命令检查内核日志并查找鼠标条目。
sudo journalctl -b
通过键入搜索“输入”/input并检查是否检测到输入。最后将一些日志放在这里。
您可以查看此页面（适用于 Debian，但大多数流程也适用于 Ubuntu）。
https://wiki.debian.org/SynapticsTouchpad