OpenGL causes my iBook to whine

Discussion in 'Macintosh Computers' started by DavidLeblond, Mar 26, 2005.

  1. DavidLeblond macrumors 68020


    Jan 6, 2004
    Raleigh, NC
    Ok I wasn't sure whether or not to post this under hardware, software, or programming but I think it is hardware related so here it is.

    I've been learning OpenGL lately, and I noticed that whenever my computer displays anything in OpenGL it makes a whining noise. I don't think this is coming out of my speakers, it sounds more like its coming from the screen. Whenever I have something on the screen that rotates you can actually hear the whine pulsating. This happens whether I program using Glut or SDL or Cocoa... has anyone ever experienced this?

    I'll find a 3D game and try it today with no sound on to see if it gives the same result. The programs work just fine other than the noise and I don't believe I have any code errors.
  2. plinden macrumors 68040


    Apr 8, 2004
    It's probably nothing to worry about. My Thinkpad screen makes a perceptible whining sound when I minimize or maximize windows. I haven't tried with games. I don't know if it's just my PC, or if I never noticed with other laptops.

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