Ubuntu 17.10鼠标故障求助：Genius无线鼠标滚轮失灵，已试社区方案无果

Hey there, let's tackle these mouse issues on Ubuntu 17.10 one by one. I know it's super frustrating when standard community fixes don't pan out, so let's dive into some targeted solutions tailored to your problems:

1. Mouse Not Working At All #

If your mouse is completely unresponsive, try these steps in order:

• Double-check hardware basics: For wired mice, swap to a different USB port (preferably a USB 2.0 port, as some USB 3.0 ports can cause compatibility hiccups). For wireless mice, replace the batteries, re-pair it with the receiver, or test it on another computer to rule out a hardware fault.
• Verify system recognition: Open a terminal (press Ctrl+Alt+T) and run xinput list — look for your mouse in the output list. If it shows up, enable it manually with xinput enable [Device ID] (replace [Device ID] with the number next to your mouse entry).
• Reset Xorg configuration: Corrupted Xorg settings can break mouse functionality. First back up the current config:

  sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.bak
  

  Then delete the original file and reboot to let the system regenerate a fresh config:

  sudo rm /etc/X11/xorg.conf
  sudo reboot
  

• Recovery mode fixes: If you can't even get to the desktop, reboot into GRUB, select Advanced options for Ubuntu, then choose a recovery mode entry. Drop into a root shell and run:

  sudo apt update && sudo apt upgrade
  sudo apt install --reinstall xserver-xorg-input-mouse
  

  Reboot after completing these commands.

2. Genius Wireless Mouse Scroll Wheel Not Working #

Since standard fixes haven't helped with your Genius mouse's scroll issue, let's try brand-specific and low-level tweaks:

• Custom libinput configuration: Create a dedicated config file to force proper scroll behavior for your Genius mouse. Open a terminal and run:

  sudo nano /etc/X11/xorg.conf.d/90-genius-scroll.conf
  

  Paste the following content into the editor:

  Section "InputClass"
      Identifier "Genius Wireless Mouse"
      MatchProduct "Genius.*Mouse"
      MatchDriver "libinput"
      Option "ScrollMethod" "button"
      Option "ScrollButton" "middle"
      Option "NaturalScrolling" "false"
  EndSection
  

  Save and exit with Ctrl+O (press Enter to confirm) then Ctrl+X. Reboot your system for changes to take effect.
• Debug with evtest: Check if the system is even detecting scroll wheel events. Install evtest first:

  sudo apt install evtest
  

  Run sudo evtest, select your Genius mouse from the list, then scroll the wheel. If you don't see any event messages, the issue might be with the mouse hardware or receiver. If you do see events, the problem is with how the system interprets them — revisit the libinput config or try the next step.
• Switch to Synaptics driver: Some Genius mice work better with the Synaptics driver instead of libinput. Install it with:

  sudo apt install xserver-xorg-input-synaptics
  

  Modify the config file you created earlier ( /etc/X11/xorg.conf.d/90-genius-scroll.conf ) by changing MatchDriver "libinput" to MatchDriver "synaptics", then reboot.
• Disable USB autosuspend: Wireless mice can lose connectivity due to power-saving settings. Edit the TLP config:

  sudo nano /etc/default/tlp
  

  Find the line USB_AUTOSUSPEND=1 and change it to USB_AUTOSUSPEND=0. Save, exit, then restart the TLP service:

  sudo systemctl restart tlp
  

If none of these work, sharing the output of xinput list and evtest (for the scroll issue) would help narrow down the problem further.

内容的提问来源于stack exchange，提问作者Fernando Fels