11-16-2014 06:24 PM
my lenovo g470 has amd radeon 6300m card. but its not diming whether brigthness is 100% or 0%
intalled driver is the latest amd 14.7 beta driver... operating system windows 8.1
how can i dimm it its draining my batery fast
please i need help...
energy mnagement intalled
i have tried win7 EM and win8 EM but no luck
11-17-2014 07:33 AM - edited 11-17-2014 08:56 AM
If you have the G470 with switchable graphics (Intel + AMD is listed on Device Manager > Display Adapters) then the brightness control is comming from the Intel Graphics. In this case, navigate to the Control Panel (icon views) > Programs and uninstall anything that says Intel Graphics and intell this version directly from the Intel website:
When finished, reboot the PC and check if you can now adjust the brightness via Fn+Arrow key up/down or via these methods:
- Method 1
- Method 2
- Method 3
11-18-2014 05:10 AM
Just to check, have you already tried the following steps?
- Install Lenovo Energy Management for Win7 + AMD Video Driver in Win7 compatibility mode
- Install Lenovo Energy Management for Win8 + AMD Graphics Driver (Discrete) in Win8 compatibility mode
After installing the above drivers, reboot the machine and try pressing the brightness down button (Fn+Arrow Down) on boot-up (before you reach the login screen) and observe if the screen brightness goes down
I don't have a G470 for testing but the above procedure worked on a G570 running Win8 (not sure though on Win8.1).
11-24-2014 05:46 PM - edited 11-24-2014 06:00 PM
thanks for the help... i have already done win7 em but amd win7 driver doesnt work on win8 or 8.1. also reinstalling em for win8 no luck i have tried the 8.1 em on g480 still no luck.. if a reveert the graphics to windows compatible driver coming with inbox driver the dim works perfectly but i get no sense having grpahics card that you not have control of it..
11-24-2014 05:53 PM - edited 11-24-2014 05:58 PM
here are the drivers installed microsoft basic display adapter is the only one works with dimmer... if i chosse the amd driver the dimmer wont work... so its no sense that if the dimmer works yet you cant use the amd driver for games and video rendering and if i use the amd the screen is set to 100% bright which draining my batery fast. i revert back always to basic whenever am in bateery mode to adjust the brightness,,, which is really anoying always reverting drivers