Y570 (0862?) brightness problem, no way to change brightness

[492kw]

Hi,

When I try to change the brightness using Fn+up/down the animation bar won't move and more importantly the brightness doesn't change either. I then tried adjusting brightness through lenovo's power management no avail. In another word, I can't change the brightness of my laptop at all.

I have tried:

uninstalling intel video driver then installing the latest one

installed the intel video driver from lenovo's site

reinstalled power management software from lenovo site

tried different intel video driver versions (as most advised had pointed me to this being the issue)

All other Fn+ shortcut works, including volume just not brightness also I am uncertain if it is a model of 0862 or not, it does say it under the laptop but it doesn't really make it obvious that THIS IS A 0862 model.

Any advise would be great, thanks

[countrywise]

Hi,

this is worth a shot.

Updating  your NVIDIA GeForce driver may have the desired effect.

Let us know if it works or not

[countrywise]

You also mention that you

tried adjusting brightness through lenovo's power management

Did you actually click on the icon in the Task bar,

and clicked 'adjust screen brightness?

Then try this:

go to 'Control Panel' > 'Appearance and Personalization' > 'Display'>top left'Adjust Brightness'

the slider is at the bottom of the page,where you can slide it and adjust it.to your liking

[matrixleader]

You must have a clean Windows installation, then install everything in the proper order otherwise it won't work

and you HAVE to use the drivers from Lenovo for the Intel HD Graphics, if you had previously installed the ones frmo Windows update by mistake, it will cause an issue

Follow the guide it has everything from A-Z

http://forums.pctweakers.net/showthread.php/62-Lenovo-IdeaPad-Y570-Clean-Install-Guide

[492kw]

I will try this but can't see it being helpful since i can have nvidia switched off and still have the same issue. will update.

[492kw]

I have tried task bar > energy management > setting> brightness, no change to bright or dim and that option through Display> is not there, only adjust resolution on the top left nothing mentioned there regarding brightness

[492kw]

Thanks for the reply berryracer, I think clean windows installation will be my last resort... I don't have the time to copy everything back on the computer... and I'm just a bit pee off at the idea that the brightness function decided to not work and i have to format my computer. very disappointing

[492kw]

Ok, fixed, windows system restore to 3 days ago. 

Thanks for all the help anyways... there must be a windows update somewhere that have caused it. mmm

[matrixleader]

Do what I do bro, even though it may sound tedious at first, it will save you a lot of hassle in the long run

1) Make a Windows DVD using the guide I posted above

2) Install Windows

3) Install the latest drivers from the guide I posted in that same order and reboot after every driver, do not take any shortcuts please thinking you dont need to restart

4) after everything is configured right and working, create an image of your entire C: Partition using a disk imaging software such as Macrium Reflect (free option) or Acronis True Image (if you don't mind paying for the best)

5) After the image is created, proceed to install all your other aps

6) anything goes wrong in the future, simply restore the image your created and your back to point 1 with everything working perfectly within 10 minuets

[countrywise]

Your O.S İS w7 RİGHT?

No,NOT adjust resolution,

the entry just below that should be,

adjust brightness,

clicking on that,AT THE BOTTOM of the page,

there should be a slider,where you can adjust the screen  brightness.

Check it again.