08-02-2015 02:32 AM
Hello, Since installing the Windows 10 upgrade, my lenvono ideapad z500,
the system does not recognize the up or down depending on the brightness of the screen
always remains fixed at 100% of maximum screen brightness, then perform uninstalling
the software display driver which is intel hd 4000 graphics adapter changing
it by microsoft basic screen and if this basic controller allows adjustment
of the maximum intensity between 100 % and 0 % minimum adjustment screen brightness.
But if I go back and update the driver for the Intel HD Graphics 4000,
returns and function brightness adjustment is disabled, to stay set to the maximum
brightness setting the screen. Being all for now, I await a reply.