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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.


If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

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Alias ID : IN20121116-001
Document ID : HT075864
Legacy Document ID : IN20121116-001
Last Updated :
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