My Acer Aspire 7720g's screen is pitch black and won't work with an external monitor either.

StamDag
StamDag Member Posts: 3 New User
edited September 29 in Aspire Laptops

Hello,
I have an 'Acer Aspire 7720g' laptop whose screen is pitch black and won't work with an external monitor either.
Windows appears to be running fine (I have installed Windows 8.1) as the Bluetooth, Wifi, and Caps Lock lights work. I would also like to mention it doesn't even light up to show the Acer logo at the start.
If you have any solutions, I would be very glad to try them.
Thank you,
Stam

[Edited the topic title to include the topic issue.]

Answers

  • Puraw
    Puraw ACE, Member Posts: 13,934 Trailblazer

    Hi, boot to Safe Mode, reboot and press Alt+F10 that should give you the blue Troubleshoot menu, click on advanced (see picture) and Startup Settings F4 (Safe Mode)

    In Safe Mode, open Device Manager and uninstall the display drivers in Display Adapters. Check if you see any yellow exclamation triangles, Unknow Devices or just Other Devices and uninstall those too. Just reboot.

  • StamDag
    StamDag Member Posts: 3 New User

    Hello, I tried rebooting to safe mode by pressing Alt+F10 but it did nothing. Do you have any other solutions?

  • Puraw
    Puraw ACE, Member Posts: 13,934 Trailblazer

    Yes, I am assuming that you still can boot to BIOS, do the same thing but boot with a Windows USB Recovery flash drive that you can make on another PC with the Same Windows version: Insert a +10GB USB flash drive in the USB port of a Windows desktop/laptop and boot to Windows, type recovery in Search

    It will take 40 minutes to make. Use this USB drive to boot your Aspire 7720G, insert in the USB drive and boot with F12, move the USB drive to the top of the boot devices.

    If you can't even boot to BIOS anymore your laptop is probably bricked, and you should bring it to a reputable PC repair shop or Acer Support in your country to reset the system. You could also try to reset CMOS and replace the RAM modules if you have a spare SODIMM: Power drain + CMOS reset: Open the back of the laptop and disconnect the battery cable from the motherboard. Locate the round CMOS module with 2 twisted wires Red and Black and remove the coin battery. Shorten the +/- contacts (terminals) inside the CMOS capsule for 2 seconds with a bended paperclip and put the coin battery back with the + sign facing up, close the CMOS capsule. Replace the RAM modules or just unseat and reseat the RAM modules firmly in the slots. Next, press the Power Button on the keyboard for 10-15 seconds after that reconnect the battery cable to the motherboard. Close the laptop, plug-in the adapter and try to boot.

  • StamDag
    StamDag Member Posts: 3 New User

    Hello again,
    Before I begin telling you what happened, I want to thank you so much for your patience and quick responsiveness.
    So, back to the problem, as you said I created a recovery boot drive whereas I installed Windows 8.1 on my UEFI (I don't know if that matters) main PC to do it. However, I couldn't get it to boot from the USB Flash Drive as I don't remember the exact steps to do it blindly. On top of that, I swapped the RAM Modules with the ones of an older laptop (the HP Pavillion zd8000) and they appeared to work properly there (Almost because only 2 GB of RAM is supported so only 2 and a half of GBs was usable) but nothing changed on the Acer laptop. On the CMOS part, I lifted the CMOS battery for 10 seconds instead of removing it completely as the connectors seemed too fragile and I didn't want to risk damaging them.
    I would also like to mention, that the Bluetooth and Wifi buttons' light indicators don't light up until the
    time it would usually take to boot, also when I press them they work properly and so does the Caps Lock light indicator. On top of that, during booting, if I start pressing buttons it starts making beeping noises but whenever I try to plug in and plug out a USB Flash Drive it doesn't make any noise.
    To sum up, I really hope that I narrowed down the problem just a notch to help you bring you closer to the solution of the problem.
    Again thanks,
    Stam.