I have a Sony Vaio laptop and want to know how I can adjust the
brightness on the screen.

Also, when the laptop is being charged, the screen automatically
becomes brighter. Why is that?

Hello gsautos,

Great questions! It seems as technology grows, so does the length of
time it takes to perform a simple task :-) Here is how to do it:

Q. How I can adjust the brightness on the screen?

- Right click the Power Panel icon in the system tray (looks like a
battery)
- Click on Edit/Create Profiles
- On the left side of the new screen, click on 'Maximum Battery Life'
- Then on the right side of your screen, click on 'LCD Brightness'
- You should see 9 levels of brightness. Level 9 is the brightest.
- You need to click on the Save icon. (Looks like a disk at top left
of screen)
- Close the window after you save the changes made.
- You must restart the notebook in order for the changes to take
effect.

I took these instructions from the Sony site. You can access the VAIO
portion directly by clicking here:

http://www.ita.sel.sony.com/support/tutorials/lib/vaiocomp.html

Q. When being charged, the screen becomes brighter. Why?

When you plug in the charger, the Vaio is wall powered. The computer
'senses' this, and has an automatic feature that changes the
brightness. The reason why the brightness setting is so low without
wall power is to conserve your battery life. The presentation link
above tells use verbatim:

"The Powerpanel Application dims the LCD automatically to save battery
life depending on the power source...."

You will see that statement in scene #4 when you view the tutorial.

I hope this answers your question. Should you need clarification,
please ask before rating this answer as I would love to be of further
assistance.

To assist with this answer I searched Google for:

sony vaio
://www.google.com/search?q=sony+vaio

Thanks for the great question!
SgtCory

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Request for Answer Clarification by gsautos-ga on 09 Nov 2002 14:34 PST

I don't have a Power Panel icon in my system tray. I had already tried
adjusting the battery settings, but there is no place that asks for
LCD brightness.

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Clarification of Answer by sgtcory-ga on 09 Nov 2002 14:59 PST

Hello,

So you did find the icon? I hope so - let me know and I'll try to be
of further assistance.

Thanks again -
SgtCory

I found the icon. Your link was very helpful.