Windows 8 and netbook display brightness issue

derek10

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I have Windows 8 64-bit (tried 32-bit too with same results) installed in my netbook (Samsung N145P) and everything is fine EXCEPT the brightness control, it's stuck at maximum and there is no way to lower it as the Windows 8 slider nor the keyboard controls do nothing.

I have installed Samsung utilities for it but still no avail, It does not have official Windows 8 support.

Thanks for any help.
 

My Computer

System One

  • OS
    Windows 8.1 64 Bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Self built
    CPU
    Intel Celeron G530
    Motherboard
    Gigabyte GA-H61M-S2-B3
    Memory
    6GB DDR3
    Graphics Card(s)
    ATI Radeon HD 5450
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster S19B150
    Screen Resolution
    1366x768
    Hard Drives
    Laptop Toshiba 320GB
    PSU
    450W
    Case
    Old one
    Cooling
    Stock
    Keyboard
    Logitech
    Mouse
    Generic
    Internet Speed
    30mbps
    Browser
    Google Chrome
    Antivirus
    None
    Other Info
    Netbook Samsung N145 Plus, with Windows 8.1 64 bit and Windows XP SP3, 2GB RAM
Have you tried changing the Power Plan to Balanced?
 

My Computer

System One

  • OS
    Win 8.1
    Computer type
    Laptop
    System Manufacturer/Model
    Acer Aspire E1-571
    CPU
    i5-3230m
    Motherboard
    Acer Type-2
    Memory
    8GB DDR3 1333MHz
    Graphics Card(s)
    Intel HD 4000
    Sound Card
    High Definiton Audio Device
    Monitor(s) Displays
    Generic
    Screen Resolution
    1366x768
    Hard Drives
    Samsung 850 Pro 256GB
    PSU
    Generic
    Keyboard
    QWERTY
    Mouse
    ELANTECH Touchpad
    Internet Speed
    12.68Mbps
    Browser
    IE11
    Antivirus
    Windows Defender
Have you tried changing the Power Plan to Balanced?

Yes, I've tried all Power plans but brightness is still stuck at maximum.
 

My Computer

System One

  • OS
    Windows 8.1 64 Bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Self built
    CPU
    Intel Celeron G530
    Motherboard
    Gigabyte GA-H61M-S2-B3
    Memory
    6GB DDR3
    Graphics Card(s)
    ATI Radeon HD 5450
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster S19B150
    Screen Resolution
    1366x768
    Hard Drives
    Laptop Toshiba 320GB
    PSU
    450W
    Case
    Old one
    Cooling
    Stock
    Keyboard
    Logitech
    Mouse
    Generic
    Internet Speed
    30mbps
    Browser
    Google Chrome
    Antivirus
    None
    Other Info
    Netbook Samsung N145 Plus, with Windows 8.1 64 bit and Windows XP SP3, 2GB RAM
Tried the RTM and still not working, display annoying bright and battery killer

Bummer :mad:
 

My Computer

System One

  • OS
    Windows 8.1 64 Bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Self built
    CPU
    Intel Celeron G530
    Motherboard
    Gigabyte GA-H61M-S2-B3
    Memory
    6GB DDR3
    Graphics Card(s)
    ATI Radeon HD 5450
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster S19B150
    Screen Resolution
    1366x768
    Hard Drives
    Laptop Toshiba 320GB
    PSU
    450W
    Case
    Old one
    Cooling
    Stock
    Keyboard
    Logitech
    Mouse
    Generic
    Internet Speed
    30mbps
    Browser
    Google Chrome
    Antivirus
    None
    Other Info
    Netbook Samsung N145 Plus, with Windows 8.1 64 bit and Windows XP SP3, 2GB RAM
Disabling the video card and lowering brightness before W8 boots works but res stuck at 800x600 and is slow

Shame nobody over the entire internet seems to be interested to solve this, so return to W7 on the netbook :(, keeping W8 on my desktop as it works like a charm there.
 

My Computer

System One

  • OS
    Windows 8.1 64 Bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Self built
    CPU
    Intel Celeron G530
    Motherboard
    Gigabyte GA-H61M-S2-B3
    Memory
    6GB DDR3
    Graphics Card(s)
    ATI Radeon HD 5450
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster S19B150
    Screen Resolution
    1366x768
    Hard Drives
    Laptop Toshiba 320GB
    PSU
    450W
    Case
    Old one
    Cooling
    Stock
    Keyboard
    Logitech
    Mouse
    Generic
    Internet Speed
    30mbps
    Browser
    Google Chrome
    Antivirus
    None
    Other Info
    Netbook Samsung N145 Plus, with Windows 8.1 64 bit and Windows XP SP3, 2GB RAM
Usually some netbooks/notebooks have specific drivers that needs to be installed for the brightness control to work.
 

My Computer

System One

  • OS
    Windows 10 Pro x64
    Computer type
    Laptop
    System Manufacturer/Model
    Lenovo Y520
    CPU
    Intel Core i5 7300HQ
    Motherboard
    OEM Lenovo
    Memory
    4GB DDR4-2400
    Graphics Card(s)
    NVIDIA GeForce GTX 1050
    Sound Card
    Realtek HD
    Monitor(s) Displays
    1 (2)
    Screen Resolution
    1920x1080
    Hard Drives
    Seagate 1TB 5400 RPM
    Keyboard
    OEM Lenovo
    Mouse
    Logitech G502 Proteus Core
    Internet Speed
    100 Mbps
    Browser
    Google Chrome
    Other Info
    PC:

    AMD Athlon X4 760K
    8GB DDR3-1866
    AMD Radeon RX 460
    Seagate 500 GB 7200 RPM
I've installed the drivers and software from Samsung for my model (they are for W7 as it doesn't support W8 officially) and nothing... tried several video driver versions and nothing... tried 3 party programs and nothing... Tried the registry hack and nothing... it's because GMA 3150 is not fully supported by W8... and seems it won't be...

Anyway I have reverted to 7 on the netbook.
 
Last edited:

My Computer

System One

  • OS
    Windows 8.1 64 Bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Self built
    CPU
    Intel Celeron G530
    Motherboard
    Gigabyte GA-H61M-S2-B3
    Memory
    6GB DDR3
    Graphics Card(s)
    ATI Radeon HD 5450
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster S19B150
    Screen Resolution
    1366x768
    Hard Drives
    Laptop Toshiba 320GB
    PSU
    450W
    Case
    Old one
    Cooling
    Stock
    Keyboard
    Logitech
    Mouse
    Generic
    Internet Speed
    30mbps
    Browser
    Google Chrome
    Antivirus
    None
    Other Info
    Netbook Samsung N145 Plus, with Windows 8.1 64 bit and Windows XP SP3, 2GB RAM
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