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Jean-Francois Bourdeau
Asked: 2018-03-28 06:19:37 +0800 CST

Keyboard/Mouse working before install but not after install on Aspire V3-551 laptop

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I am trying to install Ubuntu 17.10 or 18.04 on an Acer Aspire V3-551 Laptop

When trying Ubuntu 17.10, 18.04 ( with Mint or Ubuntu Budgie) from booting the USB stick,m everything is working well...

If i install Ubuntu onto the HardDisk of the laptopt, sometime keyboard and mousePad works most of the time no, but after applying all suggested Uunbtu updates, it doesn' work anymore.

What is different in the version of Ubuntu I installed on the USB key and booting from, and the same one installed from that USB stick to the Hard Drive ?

Tks

JF Found some old article on the web about plaing with GRUB configuration but it didn't worked

White picture is before updating Ubuntu ( Keyboard and mouse pad working) and the black picutre is after the Ubuntu Update ( keyboard / mousepad not functional anymore)

Note : the extra mouse and keyboard on the black picture have been connected after I saw the Laptop keyboard and mouse pad were not operational...

enter image description here

keyboard acer mousepad

1 Answers

  1. Since your Elantech touchpad doesn't show up in xinput list, it seems there is some issue in the kernel parameters. Please follow me:

    1. Check if you have a file named crc_enabled at /sys/devices/platform/i8042/serio2/ if yes, check if its content shows 0x00
    2. If its 0x00 then change it to 1
    3. Now at /etc/default/grub alter the GRUB_CMDLINE_LINUX_DEFAULT line as GRUB_CMDLINE_LINUX_DEFAULT="quiet i8042.nomux=1 i8042.reset" and sudo update-grub
    4. Reboot

    P.S. If there is no 'crc_enabled' file in the above directory, you can very well create one and take things forward as described.

    Hope this will solve your matter. If not please check this Arch Linux page for more detailed info.

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