全新啟動/重新啟動後，觸控板使用 SynPS/2 Synaptics TouchPad 驅動程式按預期運作。然而，在蓋子關閉後（這會導致系統掛起），功能會不一致地中斷，難以重現。
故障情況一：兩指滾動在開始之前有短暫的滯後，並且比平常慢得多。
故障情況二：兩指滾動不再起作用，而三指滾動可以。
第二個設定檔真的非常讓我困惑，因為所有設定都沒有改變（兩指滾動設定為啟用，三指滾動設定為啟用）。
下面是 xinput，在蓋子關閉事件之前和之後保持不變。
rory@rory-ThinkPad-S1-Yoga:~$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ ELAN Touchscreen id=9 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=12 [slave pointer (2)]
⎜ ↳ TPPS/2 IBM TrackPoint 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)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Integrated Camera: Integrated C id=10 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
↳ ThinkPad Extra Buttons id=14 [slave keyboard (3)]
系統資訊：
rory@rory-ThinkPad-S1-Yoga:~$ uname -a
Linux rory-ThinkPad-S1-Yoga 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
硬體資訊：
rory@rory-ThinkPad-S1-Yoga:~$ lshw -short
H/W path Device Class Description
======================================================
system 20C0S0UG00 (LENOVO_MT_20C0_BU_Think_FM_ThinkPad S1 Yoga)
/0 bus 20C0S0UG00
/0/0 processor Intel(R) Core(TM) i5-4300U CPU @ 1.90GHz
/0/0/2 memory 32KiB L1 cache
/0/0/3 memory 256KiB L2 cache
/0/0/4 memory 3MiB L3 cache
/0/1 memory 32KiB L1 cache
/0/5 memory 8GiB System Memory
/0/5/0 memory 4GiB Chip DDR3 Synchronous 1600 MHz (0.6 ns)
/0/5/1 memory 4GiB Chip DDR3 Synchronous 1600 MHz (0.6 ns)
/0/44 memory 128KiB BIOS
/0/100 bridge Haswell-ULT DRAM Controller
/0/100/2 display Haswell-ULT Integrated Graphics Controller
/0/100/3 multimedia Haswell-ULT HD Audio Controller
/0/100/14 bus 8 Series USB xHCI HC
/0/100/14/0 usb2 bus xHCI Host Controller
/0/100/14/0/4 communication Bluetooth wireless interface
/0/100/14/0/5 input Touchscreen
/0/100/14/0/6 multimedia Integrated Camera
/0/100/14/1 usb3 bus xHCI Host Controller
/0/100/16 communication 8 Series HECI #0
/0/100/1b multimedia 8 Series HD Audio Controller
/0/100/1c bridge 8 Series PCI Express Root Port 1
/0/100/1c.2 bridge 8 Series PCI Express Root Port 3
/0/100/1c.2/0 wlp4s0 network Wireless 7260
/0/100/1c.3 bridge 8 Series PCI Express Root Port 4
/0/100/1c.3/0 generic RTS5227 PCI Express Card Reader
/0/100/1d bus 8 Series USB EHCI #1
/0/100/1d/1 usb1 bus EHCI Host Controller
/0/100/1d/1/1 bus USB hub
/0/100/1d/1/1/7 input ST_SENSOR_HUB
/0/100/1f bridge 8 Series LPC Controller
/0/100/1f.2 storage 8 Series SATA Controller 1 [AHCI mode]
/0/100/1f.3 bus 8 Series SMBus Controller
/0/2 scsi0 storage
/0/2/0.0.0 /dev/sda disk 180GB INTEL SSDSC2BF18
/0/2/0.0.0/1 /dev/sda1 volume 500MiB Windows NTFS volume
/0/2/0.0.0/2 /dev/sda2 volume 34GiB Windows NTFS volume
/0/2/0.0.0/3 /dev/sda3 volume 132GiB Extended partition
/0/2/0.0.0/3/5 /dev/sda5 volume 132GiB EXT4 volume
/1 power 45N1705
任何建議都非常感激。
答案1
嗯，這是尷尬。儘管我已經完成了完整的操作，sudo apt upgrade但sudo apt update實際上只需重新安裝我的突觸驅動程式即可解決此問題。目前還不清楚為什麼它不會自動更新，但我對 ubuntu 套件管理並不深入了解。這是修復它的命令：
sudo apt install xserver-xorg-input-synaptics