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4

Lenovo Ideapad Unstable Touchpad Cursor

rated 0 times [ 4] [ 0] / answers: 1 / hits: 14913 / 2 Years ago, fri, march 25, 2022, 3:40:23

I recently installed Ubuntu 14.04 on my Lenovo Yoga 2 Pro and there is a problem with the touchpad. Whenever I lift my finger from the touchpad or click, the cursor moves a little bit to a random direction which makes me miss the target I wanted to click. This is very annoying and I couldn't find a solution online.

Can anyone tell me whether there is a solution to this problem and how would I fix it?

Thanks in advance.

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eving

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1 Year ago

answered 2 Years ago odyroc · Accepted Answer

The simple initial approach would be to simply adjust your touchpad configuration, perhaps tun your sensitivity down, especially if it moves that much simply from taking your finger off the pad. Go to System Settings>Mouse and TouchPad> drag the bar next to TouchPad cursor speed to the left to turn down.

If the above option does not resolve the issue, see this link:
http://memobadz.wordpress.com/2014/02/16/lenovo-yoga-pro-2-on-ubuntu/

which discusses several options for hardware configuration that you could explore. In reference to your issue, the section on Jumpy Touchpad and lack of middle button seems appropriate. Here is their suggestion:

Try creating the file /etc/X11/xorg.conf.d/50-synaptics.conf with this content:

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*"



    Option "FingerLow"              "46"

    Option "FingerHigh"             "46"

    Option "ClickFinger1"           "1"

    Option "ClickFinger2"           "2"

    Option "ClickFinger3"           "3"

    Option "TapButton1"             "1"

    Option "TapButton2"             "2"

    Option "TapButton3"             "3"

    Option "AreaBottomEdge"         "85%"

    Option "SoftButtonAreas"        "60% 0 85% 0 40% 60% 85% 0" # Btn2 LRTB - Btn3 LRTB

    Option "EmulateMidButtonTime"   "75"

EndSection

You can play with the values at runtime using synclient.

Amended:

To create above file, from command line:

cd ~/Desktop             #changes your current directory to your Desktop for easy access

touch 50-synaptics.conf  #creates file named 50-synaptics.conf

gedit 50-synaptics.conf  #uses gedit(text editor) to open file

Add the listed content to the file using gedit, then save and exit

Make destination folder, from command line (#added line per comment from OP).
```
sudo mkdir /etc/x11/xorg.conf.d
```

To move file to appropriate folder, from command line

sudo mv ~/Desktop/50-synaptics.conf /etc/X11/xorg.conf.d/ #Moves file from Desktop to target folder.

Good luck.