Had the same problem on a Sony Vaio VPCF12C4E with 10.04, solved adding "i8042.reset i8042.noloop" kernel parameters.
After upgrading to 10.10 RC the problem persists and the above workaround no longer works.
Had the same problem on a Sony Vaio VPCF12C4E with 10.04, solved adding "i8042.reset i8042.noloop" kernel parameters.
After upgrading to 10.10 RC the problem persists and the above workaround no longer works.