Question about Computers & Internet
I have an Acer Aspire 5734Z-4725 laptop. When it is plugged in, the screen is very dark-hard to see but when using battery only the screen is normal. what causes this and how can it be fixed thanks jud
The laptop power supply is not getting it's power to the inverter because the fuse that allows this is open
the power from the battery is able to reach the inverter and light up the cold cathode lamps that light up the screen because it's fuse is good however; the power supply to the inverter fuse is bad this fuse is very tiny and is located on the motherboard
to repair this is very hard and, expensive so; just use the laptop with the battery
Posted on Nov 18, 2013
Lots of laptop have power profiles that switch when either
AC is plugged in or removed.
There should be a memorized screen brightness setting in your power management options. Usually it's located in the built-in Windows settings under Control Panel -> Power Options -> Edit Plan Settings.
You should see a brightness slider for the screen for "On Battery" and "Plugged In". Pick your brightness from there and it should stick.
Another way is to use the "FN" key on your keyboard. Hold down the FN key and press the associated brightness picture, which on your Acer, should be the RIGHT and LEFT arrow keys. Keep holding the FN and tap the right or left to increase or decrease the brightness. Usually the setting will stick this way, but somethings you have to use the control panel method for it to really stay.
You also might have another program for power like Acer ePowerManagement which should have the same settings as windows, but layed out differently.
Posted on Nov 18, 2013
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Posted on Jan 02, 2017
i'm no expert but there is a possibility that you have downloaded a programme that uses the web cam. if another programme is using it the easiest way to solve the problem is to disable the programme using it, what operating system are you using Eg: windows xp??
Posted on Jan 11, 2011
try running your laptop in safe mode.see if it works! if yes then think that any start-up application is hanging your laptop especially the antivirus.so uninstall all third-party softwares in safe mode and if you cannot uninstall then you have to install a fresh copy of windows or the operating system you use
Posted on Apr 03, 2012
there are several possibilities here. when you say "mouse" I assume you mean that the touchpad isn't working so that is one possibility and you need to have it replaced. It could be disabled in the touchpad software in windows. One other possibility would be that you have a virus or a bad windows update that has corrupted the touch pad driver but that usually makes the keyboard non functional as well.
Posted on Nov 06, 2013
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