|That's more info, some of which is helpful to us; thanks for that.|
Answer these questions...
Have you, or is it possible someone else who had access to this computer...
- dropped it, or dropped anything on it, or otherwise exposed it to a physical jolt ?
- spilled liquid on it, or sprayed it with liquid, or exposed it to liquid such as rain ?
Since the video last worked properly all the time, has there been a power failure event that happened while the AC adapter was plugged in ?
Those things are the most frequent reasons something inside the laptop has been damaged.
Do you have no video at all at any time, now ?
Your model is not a recent one.
If you're sure none of the above things apply (you usually can never be absolutely sure).......
If the power led is lighting up, and if other leds than normally light up are lighting up, then it's likely there's nothing wrong with the mboard or the video adapter.
However, problems with the built in display on laptops and netbooks are COMMON after the laptop has been used a lot.
If you have never replaced the main battery since the computer was new, you can have problems if that battery has become internally shorted. To eliminate that possibility, remove the battery and connect just the AC to DC adapter to your computer.
Try connecting a monitor to the VGA port on your computer. It's likely you'll have no problems with the video on that.
Laptop no video (or video problems), and battery, AC adapter, power jack T shooting.
See response 1:
DO NOT plug in or unplug a monitor's video cable into / from a video port while the computer is running. Doing so can damage the monitor's circuits and/or the video adapter's circuits.
Some laptops will display on an external monitor without you having to do anything.
If you get no video on an external monitor, some laptops have a key combo that you must press to toggle the display to external video only / built in display video only / sometimes both - see the Owner's or User's manual for the model (e.g. press both Fn and Fx ; x is a number).
I have a friend's Acer laptop computer that no longer works properly that has Vista on it. It looks like the keys you use for that are Fn and F5, going by the two blue screen shaped images on the F5 key (hold down Fn, press F5, let go of both keys)..
In order for you to get video...
- there must be at least one ram module that is compatible with your model installed in the ram slots.
Ram that worked fine previously probably has absolutely nothing wrong with it and will work fine.
Ram that has not been installed in the mboard previously and found to work fine may not work with your mboard properly.
- at least one of the power sources - the main battery, or the AC adapter's connection, must be connected and be working properly.
- the video should work with at least a monitor connected to the computer's VGA port, but it may NOT work on your built in display.
- you should have video even when the hard drive is not installed.
- the cmos battery has nothing to do with video problems.
You should have video while booting the computer, at the very least BEFORE the operating system is supposed to load from the hard drive, even when the cmos battery is dead or is too weak or is not installed at all.
There is no bios setting that will disable the computer's video completely, so there's no point in removing the cmos battery to reset the bios Setup to default settings.
Recent and fairly recent Acer computers NEVER come with Recovery disks, but you can buy them from the Acer web site, or if they no longer have them there because your model is older, there are a few web sites on the web that have copies of them for your exact model for sale, for many brand name models.
When you run a Recovery procedure that re-installs the brand name computer's original software installation, or install just Windows from scratch, you lose ALL your personal data that was on the same partition Windows was installed on, unless you copy the personal data you don't want to lose to elsewhere BEFORE you do those things.
When you have video, and the computer is working otherwise, you can boot the computer from any disk that has an operating system on it that can read all the files on the hard drive
and copy the personal data you don't want to lose to elsewhere. E.g a Linux disk or the Ultimate boot CD, made on another computer.
Built in Recovery solutions on brand name computers require that the data on the hard drive that is required for that has absolutely nothing wrong with it.
If there's anything wrong with that data, or if that data is missing, the Recovery procedure cannot work. If you haven't messed with that data, when there's nothing wrong with the video, the most likely reason the Recovery procedure didn't work is the hard drive is in the process of failing.
In that case you must use a replacement hard drive and load the software on it by using a Recovery disk set for your specific model, if you want everything to be there that was there when the computer was new.
You may or may not be able to recover your personal data that you added to the original hard drive if it's in the process of failing.