Clicking on touchpad lock/unlock button locks up keyboard

Bug #578040 reported by iFreeBudget on 2010-05-10
This bug affects 12 people
Affects Status Importance Assigned to Milestone
gnome-session (Ubuntu)

Bug Description

Binary package hint: gnome-session

HP Pavilion dv7 laptop.

Enabling touchpad lock button locks up the keyboard after it. None of the keys except CTRL+ALT+DEL work.
Unlocking the touchpad enables the mouse but keyboard is still locked up. Furthermore gnome-panel doesnot respond to mouse clicks.

After this only option is to reboot by going ctrl+alt+del way

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gnome-session-bin 2.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic
Uname: Linux 2.6.32-22-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Sun May 9 20:31:33 2010
ExecutablePath: /usr/bin/gnome-session
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
SourcePackage: gnome-session

iFreeBudget (ifreebudget) wrote :
alfabravoteam (alfabravoteam) wrote :

In my case, the bug shows up when clicking the button to disable the touchpad. Once clicked, no gnome panel, no keyboard, just the USB mouse moving (useless). The only thing that works (for a short period of time) is ctrl-alt-del.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Uname: Linux 2.6.32-22-generic #33-Ubuntu SMP x86_64 GNU/Linux
Architecture: amd64
Date: Wed Apr 28 13:28:05 UTC 2010
ExecutablePath: /usr/bin/gnome-session
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64
SourcePackage: gnome-session

alfabravoteam (alfabravoteam) wrote :

Forgot it: mine is a HP Pavilion dv6000 (dv6810us). Sorry.

X181 (olag-2) wrote :

To reproduce:

1. reboot (after suspend the bug is not reproducible)
2. ensure, that the touch-pad lock is inactive
3. start gedit / firefox
4. enter a letter in a text-field
5. activate the touch-pad lock
6. try enter a letter in the text-field => should not work

for additional symptoms check out #576059 (marked as duplicate of this)

Changed in gnome-session (Ubuntu):
status: New → Confirmed
X181 (olag-2) wrote :

Forgot it: mine is a HP Pavilion dv6500 (dv6660ez).

Evan Gilbert (gilbert-evang) wrote :

This same exact thing is happening to me too on my HP dv7 laptop.

codingfreak (codingfreaks) wrote :

Same behaviour seen with dv6350eu even

David Cassidy (davidcassidy) wrote :

Add the HP Pavillion DV7-3165DX to that list. Initially I thought it was just a random lock up with the same symptoms. But it seems that you are right about the Touchpad lock. Good catch.

wribeiro (wribeiro) wrote :

Same behaviour with dv6646us laptop, Ubuntu 10.04. It didn't happen in older versions.

codingfreak (codingfreaks) wrote :

Hey guys

I feel I have found the workaround for the issue. Check out

I havent tried yet but soon will be trying out.

Changed in gnome-session (Ubuntu):
importance: Undecided → Low
idomeneas (ipate80) wrote :

Same behavior for HP DV7-3110ev with Lucid 64 and 32 bit running 2.6.32-24 kernel

Dan Benton (dogsbody) wrote :

This was exactly my problem (on another HP laptop) and the fix in comment #10 fixed it perfectly

Thank you

same is for my HP Pavillion dv7. tried out both Lucid 64 and 32 bit running 2.6.32-24.

alfabravoteam (alfabravoteam) wrote :

Tried on 10.10 (with gnome-shell) and the bug is there also. Te attatched log (.xsession-errors) shows the moment when error happened and then me trying to reboot.

lemonade (lemonade) wrote :

I'm having this issue with HP Pavilion dv5 1021eo. After keyboard is locked, visiting console and returning to X seems to free keyboard.

Dr. Tyrell (dr.tyrell) wrote :

Any news here???

X181 (olag-2) wrote :

Since 11.04 my touchpad doesnt work at all :(

Wade (wadexyz) wrote :

I have this bug on an Acer Aspire 5542 laptop. Can be avoided, but I think it's pretty nasty as it lockup up the PC....consider raising the priority.

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