is it possible that my lappy backlight gets gradually brighter after it's turned on?

[dpopiz]

it seems like when I open up my laptop, the screen starts out really really dim and then gradually gets brighter over ~20s.

I'm pretty sure I'm not just imagining it because when I hold it next to my CRT, I can see a big difference at first and then a minute later, the lappy looks just about as bright

 

[parsley007]

i wouldn't doubt it...my friends is brighter when it's using ac power..

 

[dpopiz]

ok, but that's a software setting

I'm just talking about it gradually getting brighter when it's first turned on (on AC power)

 

[parsley007]

oh ok...hmm, maybe it's warming up??

 

[Amused]

Mine all do the same thing. I have an IBM X and T. Both start dim and get brighter.

 

[Viper96720]

Common for LCDs to do that. My LCD does that if I have the screen off for awhile Just like some lightbulbs that starts dim then brightens up not instantly bright.

 

[Mday]

the backlight is typically a cold cathode or flourescent lamp, so yes, they do take a little time to warm up so they will get their brightest after a few minutes of warm up.

 

[dpopiz]

good, I'm not crazy