Remove AC Power --> Screen Dims

petertr2000 · 15 May 2012 at 22:21

I'm hoping someone can solve this for me, as its really annoying me.

When I pull the AC power out of my laptop, the screen brightness drops.

The brightness keys still work - I can lower it further, or raise it, but the Max level is lower than with AC connected.

The Windows setting is for Max to be available on battery.

Any ideas?

Its an HP DM1 4125, if that matters.

Amp34 · 15 May 2012 at 22:32

It will be in the powersaving menu, if you've tried that already then I'm no help at all, sorry!

PhillyDee · 15 May 2012 at 23:43

Could be in the BIOS, or in the proprietery program the laptop uses. Failing that, when it is unplugged, turn it up full with the shortcuts on thee keyboard. Should sort it out for next time.

petertr2000 · 16 May 2012 at 01:15

Its a vanilla Win7 64 with no HP software at all installed.

There's no option in the BIOS to change - but that doesn't mean its not being set there though, right?

petertr2000 · 17 May 2012 at 06:41

bump?

GIBURROWS · 17 May 2012 at 08:13

Definitely a power-saving thing, just look up your laptops control panel and the HP menu.

Mitzy · 17 May 2012 at 08:53

Hit the Windows key and type "power" click on whatever seems relevant.

GT3 · 17 May 2012 at 22:52

Control Panel > Hardware and Sound > Power Options > Change Plan Settings

Change Advanced power settings

Scroll down on the list to Display > Display Brightness

It has options for on battery and plugged in brightness.

petertr2000 · 18 May 2012 at 06:25

GT3 said:
Control Panel > Hardware and Sound > Power Options > Change Plan Settings

Change Advanced power settings

Scroll down on the list to Display > Display Brightness

It has options for on battery and plugged in brightness.

That was the first thing I tried.

I have finally found it though - It was the AMD Vision Engine Control Centre that had yet another power control in it!

Happy now