Unsupported Browser Detected: Dear user, the browser you’re currently using is not supported by this website. Please click here for more information about the browsers we support and how to obtain them.

IdeaPad Y470 Brightness Toggle Problem


Unit should be shipped with intel graphics driver, so that the FN + Up/Down will properly work with the on-screen display correctly moving from right to left.


Affected configurations

The symptom above may occur to the following systems:

Lenovo Y470



If you have upgrade Display Adapter from the Intel web page to, the on-screen display no longer works, it freezes, although the screen brightness changes. If we roll back the driver to 2342, the on-screen brightness display will again move as normal.


  • Alias ID: IN20121116-001
  • Document ID: HT075864
  • Last Updated :26 Mar 2014
  • © 2015 Lenovo