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Thread: HOWTO: FIX touchpad issues on karmic upgrade

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  1. #1
    Join Date
    Dec 2005
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    HOWTO: FIX touchpad issues on karmic upgrade

    I am just starting this thread to let y'all know of the fix I used.

    Problem: touchpad working fine in jaunty, not working at all after karmic upgrade. My laptop is a sony vaio, but the problem could be in all laptops.

    Symptoms:
    1. Check what kernel you are booting into
    Code:
    $uname -a: 
    Linux xxxx 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux
    If this is not your output, then you are using an older version (most probably from jaunty). You'll need to change the kernel you are booting into. This can be done by editing the default value in /boot/grub/menu.lst file.
    2. Search your 'dmesg' output for this:
    Code:
    $dmesg | grep mouse
    [ 13.603905] psmouse: Unknown parameter `synaptics_resume_reset'
    3. Check if the 'psmouse' module is loaded at all:
    Code:
    $lsmod | grep psmouse
    If there is no output of the above command, that means the touchpad module (psmouse) is not loaded.
    4. Look if there is a file called /etc/modprobe.d/psmouse.conf
    If this line exists in the file, you have the same problem as me.
    Code:
    options psmouse synaptics_resume_reset=N
    Solution:
    1. Comment out the line in (step 3) /etc/modprobe.d/psmouse.conf, i.e. add "#" at the start of the line.
    2. Reboot.

    The 'psmouse' module should be loaded successfully, and you should see a 'touchpad' tab in System->Preferences->Mouse

    Please let me know if this fixes your problems. I'll try to help as much as I can.
    Last edited by balak; November 2nd, 2009 at 01:47 AM. Reason: Added information about booting into wrong kernels
    Laptop 1: Averatec 2150 running Karmic Laptop 2: HP dv4z running Lucid
    Laptop 3: Sony Vaio SR220J running Lucid (amd64) Desktop: AMD Athlon X2 4000+ ABIT AN-M2 nVidia GeForce 7025-630a running Lucid (amd64)

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