Solved Unable to change screen brightness

Hexillium

New Member
Messages
4
I've bought a laptop that I've had for more than 4 months now, and within the last week have been unable to change the brightness of the screen (from the control panel or the FN keys). I've scoured the internet for an answer (and solution), but I've had no luck.

It's not the upgrade to 8.1 that did it because it worked until last week (8.1 was probably on my laptop). I've tried changing the display driver, which to some extent works (when the driver is changed, the brightness will change to the control panel setting). I want a better solution to doing that each time (I change my brightness often enough for that to be a problem). I've also tried rolling the driver back which did nothing.

Information: AMD-10 based Lenovo Win-8.1 laptop.

If you need any more information, please ask me for it!

Thanks,
Hex
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Lenovo
    CPU
    AMD-A10
    Memory
    8GB DDR3 800MHz
    Graphics Card(s)
    AMD Radeon
Hi Hexillium and welcome to Eight Forums,
Ummm, have you messed up with start-up programs?.
Just give it a little check by going to Task Manager then start-up section and give me a screen shot.
I had this problem too and it could be because you disabled the driver from starting automatically upon boot-up, i had this disabled:
Screenshot_2.png
If you have the same program installed check if its disabled, if you don't give me a screen shot please.
Alex.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    HP
    CPU
    Intel Core i7
    Graphics Card(s)
    Nvidia Geforce GTX 680
    Sound Card
    idfk
    Screen Resolution
    15' 1080p display
    Internet Speed
    70Mbps
    Browser
    Google Chrome Canary
    Antivirus
    AVAST Premiere 2015
Hello, thanks for responding.

I have messed with the startup programs, but only with things I know. I've only just had this problem, and I can't think of anything I've done to cause it, either (I've not recently touched regedit, or msconfig or taskmanager startup).

I have never seen 'IDT PC Audio' on my laptop, either.

22a39572f3.png

I'm going to check what I've exactly done recently (including program updates etc), and try to check the software drivers.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Lenovo
    CPU
    AMD-A10
    Memory
    8GB DDR3 800MHz
    Graphics Card(s)
    AMD Radeon
Okay,
Go to msconfig and check Normal start-up and try a reboot.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    HP
    CPU
    Intel Core i7
    Graphics Card(s)
    Nvidia Geforce GTX 680
    Sound Card
    idfk
    Screen Resolution
    15' 1080p display
    Internet Speed
    70Mbps
    Browser
    Google Chrome Canary
    Antivirus
    AVAST Premiere 2015
Amazingly, that's worked, though I've disabled nothing recently, and it's only started happening, so I'm shocked.

I'll try a reboot on custom, and see if it still happens.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Lenovo
    CPU
    AMD-A10
    Memory
    8GB DDR3 800MHz
    Graphics Card(s)
    AMD Radeon
So happy you got it to work :)
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    HP
    CPU
    Intel Core i7
    Graphics Card(s)
    Nvidia Geforce GTX 680
    Sound Card
    idfk
    Screen Resolution
    15' 1080p display
    Internet Speed
    70Mbps
    Browser
    Google Chrome Canary
    Antivirus
    AVAST Premiere 2015
So what actually do you think wasn't being allowed to startup? A driver? If so, then how did the screen work at all, and how could I change its driver (and it still didn't work)?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Lenovo
    CPU
    AMD-A10
    Memory
    8GB DDR3 800MHz
    Graphics Card(s)
    AMD Radeon
Yes, you messed up with the start-up and it went to custom start-up and the driver was not loaded, when u checked normal mode it was loaded and working now, please mark your thread as solved and the thumbs up button if it helped.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    HP
    CPU
    Intel Core i7
    Graphics Card(s)
    Nvidia Geforce GTX 680
    Sound Card
    idfk
    Screen Resolution
    15' 1080p display
    Internet Speed
    70Mbps
    Browser
    Google Chrome Canary
    Antivirus
    AVAST Premiere 2015
Back
Top