U310 jumpy touchpad with pluggen ac\dc adapter

u310 jumpy touchpad with pluggen ac\dc adapter - impossible to work with notebook
I have this very strange problem. Ever since getting a replacement AC adapter for my laptop, the mouse has started going all crazy. If the adapter is unplugged, the mouse works perfectly fine, but the second I plug the adapter back in it goes crazy again. I've heard of this problem before but I'm unaware of any solutions. Any help would be much appreciated.
can you give me a firmware for my touchpad? or should vendor to replace ac adapter?
Lenovo IdeaPad U310. Model number *. 20169
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Hi
Welcome to the community.
As you are experiencing Touchpad not works properly while connecting with power adapter.
To diagnose, I would suggest you to please un-install the Synaptics Touchpad Driver, after that re-install the Synaptics Touchpad Driver and Bios of your system from the below mentioned web link.
http://support.lenovo.com/en_US/research/hints-or-tips/detail.page?&DocID=HT073560
Afterwards, please restart the system and check whether the issue gets resolved.
Regards,
Sameer
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