停止後處於基本模式的Debian10觸摸板

我在聯想 Y2P 上執行 Debian 10/Gnome，到目前為止沒有問題。特別是uname -a產量：

Linux deepthought 4.19.0-13-amd64 #1 SMP Debian 4.19.160-2 (2020-11-28) x86_64 GNU/Linux

由於我曾經sudo halt在 4.19.0-11-amd64 上執行，因此synclient -l產生：

找不到突觸屬性。沒有載入突觸驅動程序？

即觸摸板工作，但不太敏感，沒有 2-FingerScroll，沒有點擊拖動，滑鼠和触摸板設置菜單被簡化為基本形式。在之前的版本 4.19.0-10-amd64 上，觸摸板仍然可以完全正常工作。

這是我到目前為止所嘗試的：

1. 我已經安裝（xserver-xorg-input-libinput並xserver-xorg-input-synaptics重新安裝，但無濟於事）。
2. 正如在這個StackExchange答案中一樣，xinput list產生：

↳ PS/2 Synaptics 觸摸板 id=13

$$ slave pointer (2) $$

但按照建議複製突觸配置文件：

cp /usr/share/X11/xorg.conf.d/70-synaptics.conf /etc/X11/xorg.conf.d/70-synaptics.conf

並且重新啟動並沒有解決問題。的內容70-synaptics.conf是：

# Example xorg.conf.d snippet that assigns the touchpad driver
# to all touchpads. See xorg.conf.d(5) for more information on
# InputClass.
# DO NOT EDIT THIS FILE, your distribution will likely overwrite
# it when updating. Copy (and rename) this file into
# /etc/X11/xorg.conf.d first.
# Additional options may be added in the form of
#   Option "OptionName" "value"
#
Section "InputClass"
       Identifier "touchpad catchall"
       Driver "synaptics"
       MatchIsTouchpad "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
#       MatchDevicePath "/dev/input/event*"
EndSection

Section "InputClass"
       Identifier "touchpad ignore duplicates"
       MatchIsTouchpad "on"
       MatchOS "Linux"
       MatchDevicePath "/dev/input/mouse*"
       Option "Ignore" "on"
EndSection

# This option enables the bottom right corner to be a right button on clickpads
# and the right and middle top areas to be right / middle buttons on clickpads
# with a top button area.
# This option is only interpreted by clickpads.
Section "InputClass"
       Identifier "Default clickpad buttons"
       MatchDriver "synaptics"
       Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
       Option "SecondarySoftButtonAreas" "58% 0 0 15% 42% 58% 0 15%"
EndSection

# This option disables software buttons on Apple touchpads.
# This option is only interpreted by clickpads.
Section "InputClass"
       Identifier "Disable clickpad buttons on Apple touchpads"
       MatchProduct "Apple|bcm5974"
       MatchDriver "synaptics"
       Option "SoftButtonAreas" "0 0 0 0 0 0 0 0"
EndSection

3. 將模組重新添加到核心並沒有幫助，而是告訴我： insmod /lib/modules/4.19.0-13-amd64/kernel/drivers/input/mouse/psmouse.ko proto=imps
4. 在這個reddit之後，我dmesg這樣檢查：

$ sudo dmesg | grep -i PS/2
[    1.799257] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
[    1.812958] mousedev: PS/2 mouse device common for all mice
[    2.218457] input: PS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input5
[  246.027504] input: PS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input81

但是，我的 xorg 日誌中沒有任何關於 Synaptics 的內容：

[   189.259] 
X.Org X Server 1.20.4
X Protocol Version 11, Revision 0
[   189.259] Build Operating System: Linux 4.9.0-8-amd64 x86_64 Debian
[   189.259] Current Operating System: Linux deepthought 4.19.0-10-amd64 #1 SMP Debian 4.19.132-1 (2020-07-24) x86_64
[   189.259] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.19.0-10-amd64 root=UUID=48c75b27-4eb3-426f-9a8b-80bac1fc66d5 ro quiet
[   189.259] Build Date: 05 March 2019  08:11:12PM
[   189.259] xorg-server 2:1.20.4-1 (https://www.debian.org/support) 
[   189.259] Current version of pixman: 0.36.0
[   189.259]    Before reporting problems, check http://wiki.x.org
       to make sure that you have the latest version.
[   189.259] Markers: (--) probed, (**) from config file, (==) default setting,
       (++) from command line, (!!) notice, (II) informational,
       (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   189.260] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Aug  6 14:41:07 2020
[   189.260] (==) Using config directory: "/etc/X11/xorg.conf.d"
[   189.260] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   189.261] Parse error on line 3 of section Device in file /etc/X11/xorg.conf.d/20-displaylink.conf
       "MatchDriver" is not a valid keyword in this section.
[   189.262] (EE) Problem parsing the config file
[   189.262] (EE) Error parsing the config file
[   189.262] (EE) 
Fatal server error:
[   189.262] (EE) no screens found(EE) 
[   189.262] (EE) 
Please consult the The X.Org Foundation support 
        at http://wiki.x.org
for help. 
[   189.262] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   189.262] (EE) 
[   189.262] (EE) Server terminated with error (1). Closing log file.

這裡的錯誤源於另一個停止的項目 - 它過去沒有影響突觸驅動程序。但我沒有看到任何關於後者的資訊。

（附帶問題：我不久前刪除了該文件20-displaylink.conf，即該文件不再存在。該日誌何時/如何更新？）

5. 正如我所料，在啟動時自動添加模組，如此處所建議的並沒有改變任何東西。
6. 這個連結告訴我，Gnome 3.20 不再支持突觸驅動程序，而是切換到 libinput。我有 3.30.2.，所以雖然行為是有道理的，但我在核心版本 4.19.0-10-amd64 上有相同的 Gnome 版本，它工作得很好。無論如何，這個 wiki 條目應該會告訴我如何切換到 libinput - 但我似乎對此太傻了，即我沒有得到我需要做的事情。

現在，由於我（還）對 Linux 還不夠熟悉，所以慢慢地絕望開始了，無法制定自己的解決方案。因此，非常感謝任何幫助。另外：怎麼會halt搞砸呢？有什麼危險嗎，我應該知道嗎？

非常感謝您！

對於將來遇到相同問題的任何人：我通過重新安裝作業系統解決了這個問題。抱歉，我沒有更好的消息。

引用自：https://unix.stackexchange.com/questions/629426