Ubuntu

[jaunty] [Maverick] [natty] elantech touchpad does not scroll

Reported by abennet1 on 2009-03-22
66
This bug affects 11 people
Affects Status Importance Assigned to Milestone
xserver-xorg-input-synaptics (Ubuntu)
Low
Unassigned

Bug Description

I had 8.10 installed on my laptop, a 'Pangolin Value 3' from system76 (http://knowledge76.com/index.php/Panv3, I think it is https://wiki.ubuntu.com/LaptopTestingTeam/CompalIFL91). I _believe_, but might be mistaken, that it has an elantech, not synaptics, touchpad. I upgraded to the 9.04 alpha "a few weeks ago," probably some time after the Alpha 4 release; I _think_ I used the "alt-f2, update-manager -d" method. Tonight I did a sudo apt-get update && sudo apt-get upgrade, rebooted when prompted, and then noticed the touchpad was not behaving properly. This was probably the first time I'd used the touchpad since trying the 9.04 alpha. The incorrect behaviors are:
- vertical scroll does not work. Trying to scroll (moving my finger up or down at the far right of the touchpad) just moves the mouse.
- middle-clicking with a two-finger tap does not work. Instead the page moves up or down a few lines, depending on the order in which my fingers touch the touchpad. I hope that this was not intended as a new feature, unless there is a good new way to emulate a middle-click!

I rebooted into my 8.10 release and the scrolling and two-fingers-to-middle-click features both work fine.

abennet1 (abennet1) wrote :

I also went to System | Preferences | Mouse then the new Touchpad tab: the vertical scrolling box was checked. I tried unchecking it, and scrolling still did not work; I went back to the Mouse preferences and re-enabled the vertical scrolling, but scrolling still did not work.

exactt (giesbert) wrote :

i can confirm the vertical scrolling issue on my compal hel80.

$ dmesg | grep input
[ 1.283156] input: Power Button (FF) as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[ 1.283201] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input1
[ 1.283284] input: Power Button (CM) as /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input2
[ 1.322531] input: Macintosh mouse button emulation as /devices/virtual/input/input3
[ 2.074165] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4
[ 9.585851] input: PC Speaker as /devices/platform/pcspkr/input/input5
[ 9.926749] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/device:01/device:02/input/input6
[ 11.161156] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input7

running Jaunty Beta AMD64

I can confirm too this issue on a similar laptop...

Anakin Starkiller (sunrider) wrote :

Any news about this issue ?

n3ko (n3ko74) wrote :

Have anyone tried the workaround in https://bugs.launchpad.net/ubuntu/+source/xfree86-driver-synaptics/+bug/355161
bug?

modprobe -r psmouse
modprobe psmouse proto=imps

Thanks, this workaround seems to work...

2009/5/24 n3ko <email address hidden>

>
> Have anyone tried the workaround in
> https://bugs.launchpad.net/ubuntu/+source/xfree86-driver-synaptics/+bug/355161
> bug?
>
> modprobe -r psmouse
> modprobe psmouse proto=imps
>
> --
> [jaunty] elantech touchpad does not scroll
> https://bugs.launchpad.net/bugs/346645
> You received this bug notification because you are a direct subscriber
> of the bug.
>
>

You can make the module option permanent with this:

echo "options psmouse proto=imps" |sudo tee -a /etc/modprobe.d/psmouse

Later, when this bug is fixed, you can try to remove the /etc/modprobe.d/psmouse file.

Actually, it's more like :
echo "options psmouse proto=imps" | sudo tee -a /etc/modprobe.d/options.conf

2009/5/25 n3ko <email address hidden>

>
> You can make the module option permanent with this:
>
> echo "options psmouse proto=imps" |sudo tee -a /etc/modprobe.d/psmouse
>
> Later, when this bug is fixed, you can try to remove the
> /etc/modprobe.d/psmouse file.
>
> --
> [jaunty] elantech touchpad does not scroll
> https://bugs.launchpad.net/bugs/346645
> You received this bug notification because you are a direct subscriber
> of the bug.
>
>

works for me as well... thx

I saw this issue on a Zepto Znote 3215W on Jaunty and Karmic. I think this is due to a new driver for the Elantech touchpads. In older releases (without the driver) they operated in imps compatibility mode - the workaround forces them into this mode.

Scrolling at the side of the pad stopped working but two-finger-scrolling works now by default. Could you test whether that is the case in your configurations, too? (Don't forget to remove the workaround before testing.)

abennet1 (abennet1) wrote :

I have been using proto=imps for a few weeks and it is working well for me. Without the workaround, two-finger-scrolling is the default (I press two fingers next to each other onto the touchpad and move them, together, up or down to scroll up or down).

exactt (giesbert) wrote :

Just wanted to let you know: Problem still exists with updated Karmic Alpha 3 running 2.6.31-5-generic .
The work-around is still valid.

Bryce Harrington (bryce) on 2009-09-02
tags: added: jaunty
Synthaxx (synthaxx) wrote :

Confirming this bug still exists in latest updates.

Running on a EEE PC 901 with a freshly installed Karmic.

Timo Aaltonen (tjaalton) on 2010-01-08
affects: xserver-xorg-input-evdev (Ubuntu) → xserver-xorg-input-synaptics (Ubuntu)
exactt (giesbert) wrote :

Just wanted to let you know: Problem still exists with updated Lucid Alpha 3 running 2.6.32-15-generic .
The work-around is still valid.

Problem still exists in fresh Maverick (i386), and the workaround fixes vertical scrolling... but makes impossible horizontal scrolling...

summary: - [jaunty] elantech touchpad does not scroll
+ [jaunty] [Maverick] elantech touchpad does not scroll
bugbot (bugbot) on 2011-01-25
tags: added: maverick
summary: - [jaunty] [Maverick] elantech touchpad does not scroll
+ [jaunty] [Maverick] [natty] elantech touchpad does not scroll
tags: added: natty

abennet1, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p xserver-xorg-input-synaptics REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

Changed in xserver-xorg-input-synaptics (Ubuntu):
importance: Undecided → Low
status: Confirmed → Incomplete
Launchpad Janitor (janitor) wrote :

[Expired for xserver-xorg-input-synaptics (Ubuntu) because there has been no activity for 60 days.]

Changed in xserver-xorg-input-synaptics (Ubuntu):
status: Incomplete → Expired
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