Bug 27162

Summary:	Touchpad scrolling is not functional fully. Might be a lack of recognition.
Product:	Drivers	Reporter:	00oo00 (chenalias)
Component:	Input Devices	Assignee:	drivers_input-devices
Status:	RESOLVED CODE_FIX
Severity:	normal	CC:	alan, daniele.segato, eric, nbtrap, wrar
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	Linux 2.6.35-24-generic	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	detailed info of my trackpad evtest log dmesg log

Description 00oo00 2011-01-20 13:59:10 UTC

Greetings.
Linux seems have not identified my touchpad, the scrolling function is not working.
I checked the System-Preferences-Mouse option, no trackpad Tab founded.
I did cat '/proc/bus/input/devices' command and noted. Please help me fix this bug to make the kernel better.

I collected some info I think might be helpful to solve this problem. If need more specific info to fix this issue please let me know. 

thanks in advance.

root@:~# dmesg | grep mouse
[11150.175600] psmouse serio4: ID: 10 00 64
root@:~# lsmod | grep psmouse
psmouse 59033 0 
root@:~# uname -a
Linux 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 01:41:57 UTC 2010 i686 GNU/Linux

Comment 1 00oo00 2011-01-20 14:00:41 UTC

Created attachment 44482 [details]
detailed info of my trackpad

Comment 2 EricDP 2011-03-12 05:57:36 UTC

I don't really see any info about the trackpad in your attachment. What model is your machine? What are the contents of /var/log/dmesg? Also, what is the output of evtest?

Comment 3 00oo00 2011-03-13 15:36:57 UTC

(In reply to comment #2)
> I don't really see any info about the trackpad in your attachment. What model
> is your machine? What are the contents of /var/log/dmesg? Also, what is the
> output of evtest?

Hi, Eric. Thanks for ur reply. Here is my dmesg log. My model is Hasee F237R it`s a Chinese computer brand. The trackpad is a PS/2 Logitech Wheel Mouse trackpad. How to get the output of evtest? I installed the package and ran evtest /dev/input/event8. How to dump the log?

Comment 4 00oo00 2011-03-13 15:40:19 UTC

Any way I just copy and paste the log.

Comment 5 00oo00 2011-03-13 15:41:03 UTC

Created attachment 50712 [details]
evtest log

This is the evtest log I got.

Comment 6 00oo00 2011-03-13 16:10:31 UTC

Created attachment 50732 [details]
dmesg log

Comment 7 Andrey Rahmatullin 2011-06-15 17:12:46 UTC

I have a similar problem on ASUS K53E laptop on 2.6.28, 2.6.29 and 3.0-rc2. The touchpad is recognized as "PS/2 Logitech Wheel Mouse" (as in the attached dmesg) so multi-touch features don't work.

Comment 8 Andrey Rahmatullin 2011-06-16 19:43:36 UTC

It works with https://launchpadlibrarian.net/71387234/01elantech_2.6.38.patch

Comment 9 00oo00 2011-06-22 13:26:51 UTC

(In reply to comment #8)
> It works with https://launchpadlibrarian.net/71387234/01elantech_2.6.38.patch

Thanks for the patch. But how can I patch it? I`m sort of a noob.

Comment 10 nbtrap 2011-07-19 17:21:57 UTC

(In reply to comment #9)
> (In reply to comment #8)
> > It works with
> https://launchpadlibrarian.net/71387234/01elantech_2.6.38.patch
> 
> Thanks for the patch. But how can I patch it? I`m sort of a noob.

(In reply to comment #8)
> It works with https://launchpadlibrarian.net/71387234/01elantech_2.6.38.patch

I can confirm that this works with 2.6.39.3. Has is been committed for 3.0? I'm not sure how to tell. Not a dev.

Comment 11 nbtrap 2011-07-19 17:23:31 UTC

By the way, I too have an Asus K53E.

Comment 12 Daniele Segato 2011-07-28 14:39:08 UTC

I think I have the same issue here with a new Dell Latitude E6520

$ uname -r
2.6.39-2-amd64