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Ambient light sensor causing flicker on Al 15"
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Dedicated MacNNer
Join Date: Nov 2003
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A few times a day, the screen on my al 15" 1.25 starts flickering as if it's trying to find the right brightness for the screen. It's pretty annoying. I reset the pmu, but it's still doing it. This is a recent development. Anyone else get this?
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15 inches of aluminum fury
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Junior Member
Join Date: Feb 2002
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Mine did that once or twice then I went into System Preferences/Displays and turned off the Automatically Adjust Brightness as Ambient Light Changes and it hasn't happened since.
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Mac Enthusiast
Join Date: Aug 2000
Location: Land of the Free
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Using a 1.25/15" and I just started getting it after updating to 10.3.8. Seems like the sensitivity or the response time from the light sensors has been changed.
Anyone have a solution aside from just turning it off?
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Backup your Backup
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Mac Elite
Join Date: Jun 2004
Location: Westside Island
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I had it flicker once today, but it was the first time - I've been on 10.3.8 since I got this unit, so I can't tell you if it's new or not.
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Mac Elite
Join Date: Sep 1999
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Originally posted by wy4tt:
A few times a day, the screen on my al 15" 1.25 starts flickering as if it's trying to find the right brightness for the screen. It's pretty annoying. I reset the pmu, but it's still doing it. This is a recent development. Anyone else get this?
Yes It is happening to my new al 15" too. I find that simply adjusting the brightness manually (a little up or down) whenever it starts flickering seems to settle it down:)
Overall I like this feature. But like many automatic options the feedback mechanism can lead to 'wandering'.
-- asxles in iLand
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Dedicated MacNNer
Join Date: Nov 2003
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Yep. Mine started this just after installing 10.3.8 as well. And it does clear up if you mess with the brightness manually, like you said. I guess manually setting it overrides the auto function. Hope there's a fix soon.
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15 inches of aluminum fury
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Mac Elite
Join Date: Aug 2000
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Yep, I'm the same...had to turn off the automatic setting today, as it was annoying me.
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Junior Member
Join Date: Feb 2002
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Originally posted by mrmister:
Yep, I'm the same...had to turn off the automatic setting today, as it was annoying me.
I also noticed that I could slightly change the brightness level to prevent the flickering but I didn't like the amount of screen dimming in a darkened room so turning off the automatic setting fixed that as well as flickering problem.
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Mac Enthusiast
Join Date: Aug 2000
Location: Land of the Free
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Anyone else experiencing the same problem with the illumination on the keyboard?
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Backup your Backup
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Dedicated MacNNer
Join Date: Jan 2003
Location: Salt Lake City, UT
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Hmmm, I noticed my screen flickering as well (17" Rev A). I thought it was because the backlight was going out, but it sounds like it might be something to do with 10.3.8.
I also noticed it only does it at work under flourescent lights. I wonder if it's sensing the flicker that flourescent lights make?
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"I'm the commander - see, I don't need to explain - I don't need to explain why I say things. That's the interesting thing about being the President. Maybe somebody needs to explain to me why they say something, but I don't feel like I owe anybody an explanation."
- Dictator George W. Bush, Washington Post, 11-19-02
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