ALPS Touchpad

alrojas · n00b Joined: 23 May 2012 Posts: 12

Hi, again

I have a Dell Inspiron 15R, with Alps Touchpad. This touchpad is recognized as PS/2 Mouse, so basically it works as one, Left/Right Click. Horizontal & Vertical Scroll don't work. I read several posts, and All talk about some patch or some ubuntu's package that solve the problem. I have kernel 3.2.12. And I tested 3.2.16, 3.3.7 from gentoo sources and 3.3.7 from vanilla Sources. And the problem still there.

I try to apply patch 2600_Input-ALPS-synaptics-touchpad.patch, but apparently the kernel is already patched!.

There is an Archlinux or Ubuntu package psmouse-elantech-v6.tar.bz2, with sources to compile a module, but I don't know how exactly use it on Gentoo.

Output of xinput list

IncredibleMrT · Posted: Tue Oct 23, 2012 8:38 am Post subject:

alrojas, did you ever get anywhere with this? I have an Inspiron 17RSE and have the same problem.

alrojas · n00b Joined: 23 May 2012 Posts: 12

dmpogo · Advocate Joined: 02 Sep 2004 Posts: 3468 Location: Canada

What does your /var/log/Xorg.0.log say ?
Also, how do the kernel options related to synaptics look like ?

I have ALPS touchpad on thinkpad, and it works fine

IncredibleMrT · Posted: Wed Oct 24, 2012 9:27 am Post subject:

I'm not with the machine question at the moment and so can't give you those details until later on this evening.

It seems to be a problem seen mainly on Dell laptops across multiple distros, so I expect most other brands work as intended.

I've been looking into it for some time and all kernels settings are correct as far as the many guides are concerned. Again, i'll post details this evening.

Thanks.

IncredibleMrT · Posted: Wed Oct 24, 2012 9:39 am Post subject:

Oooh... forgot I left it turned on. right, ssh'd in and here goes.

IncredibleMrT · Posted: Wed Oct 24, 2012 9:48 am Post subject:

... and here's the Xorg.0.log as requested :

dmpogo · Advocate Joined: 02 Sep 2004 Posts: 3468 Location: Canada

Could you also do

IncredibleMrT · Posted: Thu Oct 25, 2012 11:37 am Post subject:

dmesg |grep input as requested

IncredibleMrT · Posted: Tue Nov 06, 2012 1:13 pm Post subject:

Anyone have any ideas where I might be going wrong?
Any, and all, help is appreciated.

dmpogo · Advocate Joined: 02 Sep 2004 Posts: 3468 Location: Canada

IncredibleMrT · Posted: Wed Nov 07, 2012 6:38 am Post subject:

Hi.
No, there doesn't appear to be. All looks as you'd expect. It's an issue with a lot of new(er) Dell models. I've seen on some distros that there is a fix, but i'm unable to get them to be effective on my system.

I'll pester Dell.

Thanks anyway.

Yuriy Skvortsov · Posted: Tue Jan 22, 2013 6:51 pm Post subject:

Hi!

I've got the same problem with Dell Inspiron 7720. I do not know for sure if my touchpad is Synaptic or ALPS but in all logs and /proc/bus/input/devices it is listed just as "PS/2 Generic Mouse". I have activated PS/2, Synaptic PS/2 and ALPS PS/2 options in kernel. Synaptic xorg driver is also installed. Have not found any solution jet.
And I've just remembered that touchpad special features (like scrolling) worked in the pre-installed Ubuntu. Unfortunately I have no that installation anymore.

Hmm.. According to this http://www.ubuntu.com/certification/hardware/201202-10606/components/ it is Synaptics. Anyway it is not recognized.

And one more link:
http://ubuntuforums.org/showthread.php?t=2044019

Yuriy Skvortsov · Posted: Tue Jan 22, 2013 7:58 pm Post subject:

These guys have probably found a solution:
https://bugzilla.redhat.com/show_bug.cgi?id=812111
Though have not tested these patches yet.

dweezil-n0xad · Posted: Tue Jan 22, 2013 8:10 pm Post subject:

Yuriy Skvortsov · Posted: Sun Jan 27, 2013 4:49 pm Post subject:

A friend of mine owns Dell 15R Inspiron N5110 and my is 17R 7720. They are close enough so I decided to perform some comparison tests. The initial basic symptom is that in

Yuriy Skvortsov · Posted: Sun Jan 27, 2013 6:17 pm Post subject:

Yuriy Skvortsov · Posted: Sun Jan 27, 2013 6:25 pm Post subject:

By the way, should we somehow tell gentoo kernel guys about this fact? Oder?

turtles · Veteran Joined: 31 Dec 2004 Posts: 1698

infinityzxx · n00b Joined: 28 Jan 2013 Posts: 2

I just stumbled accross the same issue on my Dell Latitude XT
Latest kernel: 3.6.11-gentoo

xinput list says I got a PS/2 Generic Mouse

Never had linux before on that machine.

I hope there will be a fix soon. I've seen some pages on kernel bugzilla about that but apparently the patch that was submitted might not be a problem solver for us. It was there: https://bugzilla.kernel.org/show_bug.cgi?id=14660#c123

infinityzxx · n00b Joined: 28 Jan 2013 Posts: 2

turtles · Veteran Joined: 31 Dec 2004 Posts: 1698

The pastebin alps.c did not work for me:

http://pastebin.com/raw.php?i=m404GW1G

I downloaded https://bugzilla.redhat.com/attachment.cgi?id=596668
alps-reg-dump and it does not think I have an alps touch pad.

Yuriy Skvortsov · Posted: Wed Jan 30, 2013 8:33 pm Post subject:

turtles · Veteran Joined: 31 Dec 2004 Posts: 1698

dweezil-n0xad · Posted: Tue Feb 05, 2013 11:15 am Post subject:

maybe you could try different psmouse module parameters. That used to work on my acer netbook but is no longer needed.