Ubuntu
xorg package

Cursor running wild, then crashes

Asked by Yann Channac-Mongredien

Config :
Ubuntu 11.10
Laptop Asus G73sw

Problem :
The cursor sometimes go wild : i got random clicks, the windows are resizing, the cursor disappears. In the worst case, clicks and keyboards are disabled.

I've tried the solution given on doc.ubuntu-fr.org and add tu grub :
"i8042.nomux=1 i8042.reset=1"
in GRUB_CMDLINE_LINUX_DEFAULT

But it didn't work

What can i do ?

Thanks for helping

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Yann Channac-Mongredien
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actionparsnip (andrew-woodhead666) said : 		#1

Does it happen in Unity 2D session?

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marcus aurelius (adbiz) said : 		#2

is this a new laptop?

i bought a netbook last year. i get the same problem if i rest my palm on the palm rest while I use the touchpad. however, the cursor functions perfectly if i take my hands off.

it seems that new casing are built shoddy and by resting your palm on the rest will cause all sort of problems. i don't get the same problem on my laptop that's more than 6 years old. and i'm using 10.04 on both machines.

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Yann Channac-Mongredien (yarchmon) said : 		#3

Complement: when a window is resizing, it gets drag-boxes at every corner, center of sides and center of the window. It looks like my touchpad sends random info, or like a "ghost" touchscreen.

@actionparsnip: never tried. I will, but as this bug is random i'm not sure i'll see anything (though it appears frequently on Unity 3D).

@marcus aurelius: the laptop is 10 months old, but i didn't get this problem before 11.10 (and Unity: i stayed on Gnome with 11.04). However, when the bug occurs i got random clicks even if i don't touch the laptop or the mouse.

Revision history for this message
Yann Channac-Mongredien (yarchmon) said : 		#4

@actionparsnip : on unbuntu 2D the behavior is different : it's like i'm randomly clicking on the workspace swither icon. In the worst case, it can happen several times in a minute.

Revision history for this message
Yann Channac-Mongredien (yarchmon) said : 		#5

Radical but efficient: i've disabled the touchpad using the following command: "xinput set-prop 14 "Device Enabled" 0", and created a launcher for it. It seems to work.