Arch Linux

sultanoswing

Member

Registered: 2008-07-23

Posts: 316

[SOLVED] HP Touchpad not detected or working with kernel 3.4.6-1

On my HP Folio 13 (https://wiki.archlinux.org/index.php/HP_Folio_13), the touchpad stopped working tonight after upgrading to kernel 3.4.6-1.

Downgrading back to 3.4.5 fixed it. I've tried AUR xf86-input-synaptics-led and the stock xf86-input-synaptics packages.

Doesn't even seem to be detected, as there's not even a mention or reference to "synaptics" in /var/log/xorg.0.log, and it's nowhere to be found under /dev/inputs/.

It isn't listed under "xinput -list" either (normally shows as "SynPS/2 Synaptics Touchpad").

Last edited by sultanoswing (2012-07-26 08:18:15)

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siriusb

Member

From: Hungary

Registered: 2010-01-01

Posts: 422

Re: [SOLVED] HP Touchpad not detected or working with kernel 3.4.6-1

I was using xf86-input-synaptics-led when the same thing happened and stock xf86-input-synaptics solved the problem. I couldn't see anythying in Xorg.0.log or everything.log, it was not detected at all.

anrxc

Member

From: Croatia

Registered: 2008-03-22

Posts: 835

Website

Re: [SOLVED] HP Touchpad not detected or working with kernel 3.4.6-1

Hello you need to rebuild synaptics-led with the new kernel if you have it installed. It replaces/overrides psmouse module in the kernel, and if it fails to load you would be left without a touchpad.

Last edited by anrxc (2012-07-25 23:22:55)

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You need to install an RTFM interface.

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,514

Re: [SOLVED] HP Touchpad not detected or working with kernel 3.4.6-1

Could you post the output of cat /sys/class/input/event*/device/name   ??

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sultanoswing

Member

Registered: 2008-07-23

Posts: 316

Re: [SOLVED] HP Touchpad not detected or working with kernel 3.4.6-1

Hello you need to rebuild synaptics-led with the new kernel if you have it installed. It replaces/overrides psmouse module in the kernel, and if it fails to load you would be left without a touchpad.

Yep that was the problem. I'd forgotten I'd compiled and installed the psmouse module using synaptics-led (/face-palm)

The AUR package, along with xf86-input-synaptics-led, did make the double-tap top-left corner hotspot work to turn the touch pad on and off. The LED light showing whether the pad is on or off never worked, however.

So - I'm now back to stock xf86-input-synaptics and on kernel 3.4.6-1 and all is working as it should.

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Arch on: ASUS Pro-PRIME x470, AMD 5800X3D, AMD 6800XT, 32GB, | ThinkPad X1 | ASUS ux303ua | Surface Laptop 2 | Minisforum UM780