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Peatofpower1
Blue Screen Again
Posts: 3
Registered: ‎07-29-2015
Location: Germany
Views: 297,702
Message 1 of 39

Ideapad Z500 Touch Win 10 Brightness Problem

Hello,
the Z500 Touch has/had the problem with the regulation of the brightness with Win 8.1, but reinstalling the intel video driver solved this problem.

Now - with Win 10 - I have got the same problem, but reinstalling the (intel) drivers doesn't help. I just can't regulate the brightness: The brightness sticks at the lowest level.

Does anybody know how I can solve this problem?

Peter Smiley Happy
bieloliver
Paper Tape
Posts: 2
Registered: ‎07-29-2015
Location: Soller
Views: 296,721
Message 2 of 39

Re: Ideapad Z500 Touch Win 10 Brightness Problem

My z500 (not touch) also has the same problem, it is very annoying.

I hope you solve this soon, as you are advertising Windows 10 everywhere in your web....

Highlighted
Aorest3
Serial Port
Posts: 32
Registered: ‎09-01-2014
Location: Antequera
Views: 297,794
Message 3 of 39

Re: Ideapad Z500 Touch Win 10 Brightness Problem

We're discussing the same problem on the spanish forum -> https://forums.lenovo.com/t5/Z/Z500-y-Windows-10/m-p/2130659#M4247

It seems modifing regedit can help this issue, as on W8.1 https://forums.lenovo.com/t5/Z/Solucion-al-problema-de-brillo-en-Windows-8-1/m-p/1414649#M3567

Aorest3
Serial Port
Posts: 32
Registered: ‎09-01-2014
Location: Antequera
Views: 296,690
Message 4 of 39

Re: Ideapad Z500 Touch Win 10 Brightness Problem

I think I have found the solution. Try it and tell us, please, if it works.

http://www.tomshardware.co.uk/forum/id-2740794/start-menu-wont-unable-increase-brightness.html#16352...

bieloliver
Paper Tape
Posts: 2
Registered: ‎07-29-2015
Location: Soller
Views: 296,639
Message 5 of 39

Re: Ideapad Z500 Touch Win 10 Brightness Problem

Thanks! that worked for me, but just using this driver (beta for w10)

https://download.lenovo.com/pccbbs/mobiles/win10beta_g1dt001w.zip

 

Z500 is not in the compatibility list of this driver pack, but it works.

Aorest3
Serial Port
Posts: 32
Registered: ‎09-01-2014
Location: Antequera
Views: 296,611
Message 6 of 39

Re: Ideapad Z500 Touch Win 10 Brightness Problem

It's funny because both of the two options don't work on me hahaha

I have another issue. None of my internet explorers (edge, firefoz, chrome) open some webs like google, twitter or facebook. The only one which works is maxton. I think that could be a problem with the spybot, but I desinstalled before I updated, so I don't know. Any ideas?

Peatofpower1
Blue Screen Again
Posts: 3
Registered: ‎07-29-2015
Location: Germany
Views: 296,503
Message 7 of 39

Re: Ideapad Z500 Touch Win 10 Brightness Problem

I'll try that.

 [Edit: Doesn't work for my Z500 touch. I copied those files but it didn't help. In addition, I'm not ableto reinstall the Win 8.1 Intel Video driver, because Windows 10 tells me the Realtek bluetooth or something like that program doesn't run with Win 10 :/]

 

I've got another solution: Just set the driver of the on-board graphics to the previous version and the brightness problem is solved, but because of me having a graphics 4000 the performance with this "trivial" driver is just bad so that it's just a workaround.

Peatofpower1
Blue Screen Again
Posts: 3
Registered: ‎07-29-2015
Location: Germany
Views: 296,393
Message 8 of 39

Re: Ideapad Z500 Touch Win 10 Brightness Problem

Ok, the tip with the regedit worked, nice
chris19962223
Paper Tape
Posts: 1
Registered: ‎07-29-2015
Location: United States
Views: 296,182
Message 9 of 39

Re: Ideapad Z500 Touch Win 10 Brightness Problem

Yes, it works.

Kotoro
What's DOS?
Posts: 1
Registered: ‎08-11-2015
Location: UK
Views: 294,360
Message 10 of 39

Re: Ideapad Z500 Touch Win 10 Brightness Problem

Hello,

 

I recently upgraded to Windows 10 and now I cant adjust the brightness either using the keyboard or through Windows - what can I do??

 

Mod edit:  Post merged in.

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