I found a posible solution for this bug at:
https://bugs.launchpad.net/ubuntu/+bug/341094
I have a DELL VOSTRO 1510, and add "i8042.reset i8042.nomux i8042.nopnp i8042.noloop" to boot parameters in GRUB.
this work fine for my up to now. (two days).
I found a posible solution for this bug at:
https:/ /bugs.launchpad .net/ubuntu/ +bug/341094
I have a DELL VOSTRO 1510, and add "i8042.reset i8042.nomux i8042.nopnp i8042.noloop" to boot parameters in GRUB.
this work fine for my up to now. (two days).