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What's DOS?
Posts: 1
Registered: ‎09-10-2014
Location: Boston
Views: 461
Message 1 of 2

U430 problem with the touchpad

Just recently bought the U430, on top of the wifi periodically kicking me, the most annoying problem I have with this laptop has to be that the touchpad is just WEIRD.

It would often stop working, in the sense that I can right & left click ok, so I know it's not disconnected, however I cannot move the mouse, it would just stuck there. I've tried F6 which is locking/unlocking screen and it still doesn't work. Is this a configuration problem or a manufactuere defect?


Also any one knows how to adjust the contrast of the screen? I only see brightness adjust buttom on the keyboard.


Social Support Agent
Social Support Agent
Posts: 2,392
Registered: ‎08-10-2014
Location: IN
Views: 427
Message 2 of 2

Re: U430 problem with the touchpad

Hi Bananakorps,


Welcome to Lenovo forums


As I understood that you are facing the issue with touchpad of your U430.


Try to re-install the touchpad drivers and check for the issue.


Also connect the external mouse and check if the issue persist.


As you have also mentioned there is a issue with screen contrast, there is is a key in keypad to adjust f11 to decrease the brightness and f12 to increase the brightness, the hotkey feature must be enabled.


  • To enable the hot key feature go to BIOS->configuration.
  • Under configuration you will option as hotkey mode, press enter then you will have 2 option as enable and disable select enable and press fn+f10 to save and exit.
  • The system restarts now and boots to windows, press f11 or f12 to adjust the contrast.

Hope this helps! Do post us back for further queries.


Best regards,    



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