Submit Hint Search The Forums LinksStatsPollsHeadlinesRSS
14,000 hints and counting!

Work around an ambient light adjustment bug in 10.3.8 System
As many have noticed, the 10.3.8 update has seemingly rendered useless the formerly very useful option of having the display "automatically adjust as the abient light changes." There seem to be times when, especially under florescent lighting, the display will flicker between 95% and 100% brightness almost constantly. Until Apple releases an update, I want to share a little trick to subdue this behavior.

It seems that if you just manually bring the brightness back up to 100%, it will stop flickering -- this is the F2 key on the 15" PowerBooks. Try it, you'll like it.

[robg adds: I can't confirm this issue, as my 12" PowerBook doesn't offer this option. If others have seen the problem and can confirm the fix, please post in the comments...]
    •    
  • Currently 1.75 / 5
  • 1
  • 2
  • 3
  • 4
  • 5
  (4 votes cast)
 
[9,870 views]  

Work around an ambient light adjustment bug in 10.3.8 | 6 comments | Create New Account
Click here to return to the 'Work around an ambient light adjustment bug in 10.3.8' hint
The following comments are owned by whoever posted them. This site is not responsible for what they say.
Work around an ambient light adjustment bug in 10.3.8
Authored by: joshX on Feb 28, '05 08:08:21AM

Got the same problem with my G4 15".
The hint seems to "fix" the problem.
I tried too turn off "Automatic Adjustment ... " in Display Preferences but the checkbox allways turned on again when reentering the preferences (???).


---
Where I lay my @ there's my home!



[ Reply to This | # ]
Work around an ambient light adjustment bug in 10.3.8
Authored by: jduckles on Feb 28, '05 09:10:38AM

I saw the problem last week and turned off the automatic ambient light setting as my workaround. Under the florescent lights at the office is where I first noticed the problem.



[ Reply to This | # ]
Work around an ambient light adjustment bug in 10.3.8
Authored by: stukdog on Feb 28, '05 09:46:27AM

I too had that problem. I called Applecare about it and just got a little run around. I finally just told them that I would turn off the ambient light until they release an update.

PS, I am so glad to read that others were having the problem. I thought that something was going wrong with my computer.



[ Reply to This | # ]
Work around an ambient light adjustment bug in 10.3.8
Authored by: dmr68 on Feb 28, '05 10:12:54AM

For me, the flickering screen issue has been around for a while, not just 10.3.8.
It only happens on occasion under some low light situations on my 15" 1.25Ghz Powerbook. I can confirm that a quick tap of the F2 (brightness) key solves the problem, as I have used this method for some time.



[ Reply to This | # ]
Bigger issue with ambient light adjustment bug in 10.3.8
Authored by: Honce on Feb 28, '05 01:05:31PM

The bigger issue is the driver now logs messages almost continuously while flickering. The system.log file can fill your hard disk if you don't turn off keyboard backlighting and ambient light adjustment.



[ Reply to This | # ]
Bigger issue with ambient light adjustment bug in 10.3.8
Authored by: boertje on Feb 28, '05 02:50:10PM

I can't confirm the flickering issue on my 15" Al-Book. I do however realize this useless verbose logging. If you're like me and always have the system.log open it doesn't only fill your hardrive. I also hides every information you might still want to see since it's sometimes up to 50 msgs a second and while doing that it uses quite some cpu. I know you could "grep -v AppleLMUController" but you can't do that in geektool. This only occurs to me with the Keyboard-Backlighting though. The screen doesn't flicker. The only workaround for me so far is to completely turn off Keyboard-Backlighting.



[ Reply to This | # ]