Touchpad not working after update to 12.04 (DELL Latitude E5520)

[trondhuso]

Check if synaptics-support for xorg is installed..

I ran
sudo apt-get install xserver-xorg-input-synaptics

and suddenly I the touchpad-tab in mouse-settings was visible.

it's still a bit sensitive, but I am researching.

[trondhuso]

While I am on the Fix-things that does not work like it should - and reporting the findings, I have now fixed the sensitivenes of the touchpad/mouse:

The sensitivenes was due to Gnome-3-settings for accessability. I turned off 'Trigger click when the pointer hovers' and now touchpad is working like it should.

Trond

[ockert8080]

I had the touchpad not working.

This worked for me:
1) In ccsm I disabled mouse polling
This fixed the mouse
2) Disabling mousepolling also disabled desktop-wall, so after disabling mouse polling and you want your desktop-walls back, you need to go back and reneabled mousepolling and also reactivate the desktop-wall. The reactivations did not seem to have any deleterious effects on the touchpad

[tagra123]

Gateway Netbook -- was having the same problem. Enabling the touchpad by pressing Function F6 (enable touchpad) during / after bios screen allowed Ubuntu to see the device.

It has only failed once after being dual booted into windows.


Trying the same thing after boot failed.

Wierd!

[Nwe Nwe]

same problem with thinkpad t520.
touchpad did not work.
this:

# modprobe -r psmouse
# modprobe psmouse proto=imps

as root restored touchpad BUT two finger scrolling does not work and "mouse and touchpad" settings panel no longer has the touchpad tab.

Hi,
I use Ubuntun 12.10 alongside with Window 7. TouchPad in Window 7 work well. But, in Ubuntu since instllation complete, it doesn't work. When I type this command "modprobe -r psmouse" in terminal, this following error appear. How to solve it. Please let me know.

Error removing psmouse (/lib/modules/3.5.0-17-generic/kernel/drivers/input/mouse/psmouse.ko): Operation not permitted

[lisati]

Hi,
I use Ubuntun 12.10 alongside with Window 7. TouchPad in Window 7 work well. But, in Ubuntu since instllation complete, it doesn't work. When I type this command "modprobe -r psmouse" in terminal, this following error appear. How to solve it. Please let me know.

Error removing psmouse (/lib/modules/3.5.0-17-generic/kernel/drivers/input/mouse/psmouse.ko): Operation not permitted

You might need to do this:

sudo modprobe -r psmouse

[rociosiuce]

Thanks!
I just used sudo modprobe psmouse and that fixed my problem

[elvis-nguyen]

Hi everyone,

I had the same problem when installing Ubuntu 12.04 on Dell Latitude E6530. And I tried to follow the instructions. It absolutely works in my laptop. Why have not you done yet?

[keniatw]

Hi.

Thanks, this indeed re-enabled the touchpad!
But now I can't disable it while using an external mouse.

cheers
Andy

I am having this problem now with Ubuntu 12.04. I upgraded from 11.04 on a HP ProBook and the touchpad-indicator was not working properly. My touchpad was permanently disabled. I really hate that thing, but if I don't have a mouse around to use I get stuck!

I used the solution above:

sudo modprobe -r psmouse
sudo modprobe psmouse proto=imps

and got the same problem: I can't disable it while using an external mouse, and my touchpad became very sensitive.

I'd like to go back on that. Sorry, I am barely a Linux user, so I don't fully understand how it did work and, of course, how to go back.

Any help from you guys that faced this annoying problem for several months?

[vigyani]

Hi
I am using Ubuntu 12.04 on Acer Aspire S3-391. It has been working fine. A few days ago after update touchpad syoped working. I checked dconf-tools seetings for mouse it was fine and nothhing else helped.
Then I installed xserver-xorg-input-synaptics and after the reboot it strted working.

thanks
with regards