GX660 + 460m = no screen brightness

Discussion in 'MSI' started by G.F.Y., Aug 22, 2011.

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  1. G.F.Y.

    G.F.Y. Notebook Geek

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    Hey there guys, my 5870m just died..and a friend of mine provided me with his spare GTX460m. I got it installed fine, games fine, etc.. All except that the fn+ up/down doesn't change the screen brightness any longer. even windows+x or the power sliders in power options doesn't work. I believe my screen is stuck at 50% brightness.

    Any insight?
    Thanks.
     
  2. moral hazard

    moral hazard Notebook Nobel Laureate

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    Try flashing the vbios from an MSI GTX460m onto your GTX460m.
    I think the MSI GT663 came with a 460m, so if you can find the vbios from that then it may help.
    I would also download SCM for the GT663 (actually it uses the same SCM as the GT680) and install that on your GT660.

    I would try SCM first, then the vbios.
     
  3. G.F.Y.

    G.F.Y. Notebook Geek

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    Tried the GT680's SCM, i could only adjust the brightness when the windows logo is loading. When I reboot, i'm back to no control. Hmm. I'm rather hesitant of bios flashing this card atm. :p
     
  4. moral hazard

    moral hazard Notebook Nobel Laureate

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    What graphics driver are you using? the latest one?

    Is there any ATI software still installed?
    I would remove that (and any other traces of ATI).
     
  5. G.F.Y.

    G.F.Y. Notebook Geek

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    I uninstalled all traces of ATI drivers, used driver sweeper as well.
    I'm using the 270.28 drivers with a custom inf, the most recent one won't accept my GTX460m..
     
  6. moral hazard

    moral hazard Notebook Nobel Laureate

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  7. G.F.Y.

    G.F.Y. Notebook Geek

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    Ohh, I think it's because i'm using laptopvideo2go drivers...

    Can you link me to a more updated version ?
    tried the latest one from nvidia and it still doesn't work..
     
  8. moral hazard

    moral hazard Notebook Nobel Laureate

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    That 460m you have, did it come from a dell/alienware?
    If it did, then maybe try the driver from dells website.
     
  9. dave-p

    dave-p Notebook Deity

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    I am pretty sure it is a VBIOS issue, if the card is not a MSI card the brightness controls would not likely work.
     
  10. ryzeki

    ryzeki Super Moderator Super Moderator

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    If you can change brightness during POST and/or BIOS but not in windows, it's a driver problem.

    I had those with my previous laptop and some driver releases.
     
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