High pitched noise when scrolling

Question

Level 1

5 points

High pitched noise when scrolling

Interesting problem here. Whenever I scroll, either with the scroll bar or using the scroll feature on the touchpad, there seems to be a high pitched noise coming from my screen. I haven't been able to pin-point it, but anytime that screen scrolls, I can hear it.

Anyone else encountering this? By the way, I'm using a 15" hires Powerbook.

15" hi-res PB, 1.67GHz, 1.5G RAM, 80G, DL, Mac OS X (10.4.4), no more lines

Posted on Feb 16, 2006 8:33 AM

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Answer 1

Feb 17, 2006 2:21 PM in response to rich-e__

I've had the same problem with my Hi-res PB, but it seems to come and go. I also noticed the sound was produced briefly whenever I pressed a button on the keyboard (in addition to scrolling). I thought the high pitched noise kind of sounded like the high frequency hum of a CRT monitor when you put your ear close to the back of the tube.

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Answer 2

JIMacG5

Level 2

490 points

Feb 17, 2006 6:59 PM in response to drj434343

Yes, I have also noticed it, but have figured out that it is normal. When I am plugged into the power adapter and using the trackpad, I hear the sound. When I am using the battery, there is no sound and it is fine. It seems normal to me because it isn't random and only happens when you input a command (moving your fingers over the trackpad). I am not too worried, but after a while it is kind of annoying to me.

-Jason

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Answer 3

rich-e__ Author

Level 1

5 points

Feb 19, 2006 7:03 PM in response to JIMacG5

At least I'm not crazy. I thought, briefly, that I was the only one affected by it. I'm learning to live with it since it's very rare that I'm working on my PB in complete silence.

Thanks.

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Answer 4

rich-e__ Author

Level 1

5 points

Feb 20, 2006 7:06 PM in response to JIMacG5

Thanks for the info JIMacG5. I ran my PB on battery and actually paid attention to the display noises and noted that they weren't there. Complete silent. Plugged the adapter in and voila, noises reappeared. I'm just gonna live with this minor annoyance.

Thanks again.

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Answer 5

Ed Beale

Level 4

1,065 points

Feb 24, 2006 8:39 PM in response to rich-e__

I noticed the scrolling buzz when viewing secure web pages only. I figured it was some sort of secure web page subprocessor. Check if you can reproduce this with your machine. I learned to live with it, as I don't do a lot of secure work.

On another note, the only buzz I hear from my new PB is while the power adapter is plugged in.

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Answer 6

Apr 30, 2006 5:46 PM in response to Ed Beale

I have experienced the same. A little noise, but not disturbing or anything... The volume seems to be dependent of the size of scrolling area.

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