Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I bought an acer Aspire 5742Z laptop (with a Intel HD 128 MB GFX card) back in May 2011 and I think I'm starting to see a problem with the screen. I first noticed it last night and again this morning. Intermittently the screen seems to lose saturation, that is the picture seems greyer/more washed out than normal. It comes and goes lasting for only ten or so seconds at a time.

Is anyone aware of any issues with the model laptop or the graphics card that might cause this?

Update I've just checked the Windows Update history and a new driver was installed on the 14/12/2011. I've rolled this driver back to see if that has any effect.

share|improve this question
    
Maybe something with the display? –  Little Helper Jan 3 '12 at 19:46
    
Dumb, but obvious question: are you perhaps accidentally hitting Fn + Left/Right? –  Synetech Feb 14 '12 at 1:53
    
Also, is this only when using battery or also when connected to the AC adapter? If your battery charge falls too low, it will switch to a power-saving mode using lower contrast. The thing is that if you are using something that uses a lot of CPU, it could estimate less than 10 mins. of remaining power and switch to low-brightness, but then when you stop doing that task, the estimated remaining time can go up and it then switches to the normal screen. –  Synetech May 25 '12 at 18:54

2 Answers 2

It has to do with your power saving modes, I have mine set only to do it when the laptop isn't plugged in to help preserve the battery longer.

share|improve this answer
1  
It's losing saturation, not brightness. –  Greg B May 29 '12 at 9:37
up vote 0 down vote accepted

This was due to the Intel Driver. Rolling back and blocking that update fixed the issue.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.