05-28-2015 03:37 AM
I have an ideapad Z580 laptop running Windows 7 (preinstalled) and I have two problems:
*1* The "Cap sensor buttons" don't work anymore
*2* The combination of 'fn+F4' which is supposed to open the interface for display resolution settings.
Doesn't work anymore too...
I guess the matters come from the drivers, but I don't know which one I am supposed to install.
Do you have any solutions?
Thanks in advance
05-29-2015 06:40 AM
Welcome in Lenovo community
the function of FN+F4 Wide/Normal switch, is this machine was preinstalled with Win8\Win8.1 ?
As for "Cap sensor buttons" don't work anymore , ( do you mean the sensitive buttons at the top of the keyboard ) .
Let me know
05-30-2015 12:39 PM - edited 05-30-2015 12:40 PM
For fn+F4, yes windows was preinstalled. But it is windows seven
"Cap sensor buttons" is the number 7 on the picture in attachment.
by not working, I mean there are no more light and nothing happens when I touch them.
06-02-2015 07:11 AM
Well, We just need you to reset the BIOS and there is an application called Lenovo Energey management you will need to uninstall it if already installed, Below is the link of the latest version .
Let me know
06-02-2015 01:37 PM
I saw, you talked about reset the BIOS.
I know how to do it.
But i don't know what is it involve for my files and programs on my laptop?
should i have to save my files? or will i have to reinstall all my program?
06-03-2015 08:39 AM - last edited on 06-10-2015 03:17 PM by dragnoak
In order I reinstall "lenovo energy management"
then i reset the BIOS
But it doesn't change anythings.
Note: When I press Fn+F4 I got a message "the video card driver is not installed on your system"
But when I go in the "device manager " both of my Video card have their driver up to date
for the cap sensor buttons that's what I have:
and there is what I am supposed to have:
Do you have any other ideas?
Thanks for your time
Mod comment: Over sized picture converted to link. Please see About-Posting-Pictures-In-The-Forums
06-05-2015 05:39 AM
Please unisntall both cards and reinstall them using the below links,
06-05-2015 12:18 PM
There is a good and a bad news
the bad one:
the " cap sensor buttons " are always dead
the god one:
the Fn+F4 function works again
by reinstalling the following driver
* for the intel HD Graphics 4000
** for the Nvidia GeForce GT630M
I used the software " NVIDIA GEFORCE Experience "