The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    Brightness control (both hardware key and slider inside win8) doesn't work

    Discussion in 'MSI' started by davidkwan, May 30, 2013.

  1. davidkwan

    davidkwan Notebook Consultant

    Reputations:
    37
    Messages:
    115
    Likes Received:
    0
    Trophy Points:
    30
    Hello everyone,

    I suddenly noticed that the brightness control doesn't work!
    After the windows bootup, the brightness can't be control whatever through hardware key (FN+up and down) or slider inside power plan of win8. The brightness always keep the same.

    After google the issue, someone suggest this is windows8 bug.... (????) and AMD chipset bug (no AMD in my 1762!) and actually the brightness can be crank up and down shortly during the blue windows logo screen right before the acutal windows bootup. After the windows bootup, no more control available for the brightness

    Do anyone have the same issue, how can I fix it?

    Thanks!
     
    davidkwan, May 30, 2013
    #1
  2. qweryuiop

    qweryuiop Notebook Deity

    Reputations:
    373
    Messages:
    1,364
    Likes Received:
    89
    Trophy Points:
    66
    have you done any of the following actions:
    flash GT70 EC, flash beta Gt70 EC
    flash GT70 bios, GT70 uefi bios
    if you did, in which it is confirmed that the EC's will muck up your fn keys, you should go back to the barebones EC by contacting either MSI or seller for the correct EC
     
    qweryuiop, May 30, 2013
    #2
  3. davidkwan

    davidkwan Notebook Consultant

    Reputations:
    37
    Messages:
    115
    Likes Received:
    0
    Trophy Points:
    30
    Thanks for reply! But the brightness can be crank up and down shortly during the blue windows logo screen right before the acutal windows bootup. Does it still relate to EC/BIOS problem??
     
    davidkwan, May 30, 2013
    #3
  4. qweryuiop

    qweryuiop Notebook Deity

    Reputations:
    373
    Messages:
    1,364
    Likes Received:
    89
    Trophy Points:
    66
    whooops my bad

    I should be completely wrong here

    have you installed the following and can confirm them running visually
    (with the application screen, not just the tray bar icon that does nothing)
    msi KLM
    msi SCM

    and can you confirm that you can adjust screen brightness from the power options Capture.PNG

    and by the way, Windows 7 FTW!
     
    qweryuiop, May 30, 2013
    #4
  5. Prostar Computer

    Prostar Computer Company Representative

    Reputations:
    1,257
    Messages:
    7,426
    Likes Received:
    1,016
    Trophy Points:
    331
    You said you noticed this "suddenly". Were any software changes made just before it happened (especially any updates)?
     
    Prostar Computer, May 30, 2013
    #5
  6. davidkwan

    davidkwan Notebook Consultant

    Reputations:
    37
    Messages:
    115
    Likes Received:
    0
    Trophy Points:
    30
    Thank you everyone, the issue get sorted out!

    It is a EC problem, the control come back after flashing a new EC.

    Many thanks for Ken from GentechPC!
     
    davidkwan, May 30, 2013
    #6
  7. Prostar Computer

    Prostar Computer Company Representative

    Reputations:
    1,257
    Messages:
    7,426
    Likes Received:
    1,016
    Trophy Points:
    331
    Glad it's all sorted for you, david!
     
    Prostar Computer, May 31, 2013
    #7