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  1. #1
    15" PowerBook G4 Backlit Keyboard Super Dim

    Member Since
    Jan 18, 2010
    Location
    Orlando, FL
    Posts
    195
    Your Mac's Specs
    Mid 2012 i7 13" MBP & PowerMac G5 2.5 Quad 8GB QFX
    Rep Power
    10
    15" PowerBook G4 Backlit Keyboard Super Dim
    Hey everyone. I recently picked up a 15" PowerBook G4 with the 1.5Ghz G4 and 1.5GB of DDR1 Ram. It works great and I have been using it a lot. However, the backlit keyboard on it is super dim. The ambient light sensor responds properly to any and all light input, or lack of light input and the keyboard does light up. I have the keyboard brightness maxed out and it is still barely visible. Is there some type of reset of the SMC or something like the newer Macs have? I could not seem to find anything on this issue from google searching. Thanks!

  2. #2
    15" PowerBook G4 Backlit Keyboard Super Dim

    Member Since
    Jan 18, 2010
    Location
    Orlando, FL
    Posts
    195
    Your Mac's Specs
    Mid 2012 i7 13" MBP & PowerMac G5 2.5 Quad 8GB QFX
    Rep Power
    10
    Wanted to add, that I just got a 17" PowerBook G4 in the mail, and it has a similar issue. It is actually even dimmer, yet still functions. Wonder if this is just a G4 thing?

  3. #3
    15" PowerBook G4 Backlit Keyboard Super Dim
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    58,251
    Your Mac's Specs
    2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, Numerous iPods, Mojave
    Rep Power
    53
    Maybe you need to dig into what kind of backlighting the older G4 PowerBooks used? Those machines are pretty old so it's likely they used an older technology to provide the backlighting. The newer LED backlighting used in the latest machines probably have different LEDs to provide the light. Brighter and stronger maybe?

    Go to ifixit and see if you can come up with something and let us know.

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