black screen

[golila]

i bought all in one computer / 9/23 /2013.

I  got  black screen from last week. I tried everything what I can do troubleshooting instruction . Bios too.

My pc light is on/ fan is working/ no beeping sounds/

I want to try connect with other monitor, but my pc does not have port.

How can I connect another monitor.

And also. where can I get refair services???    My Zip code is 22153.

PS: I tried already USB graphic adaptor, but it needed cd install.

        It is impossible because monitor is dead...

[Malygris1 · Accepted solution]

Hi there @golila

Welcome to the HP Support Forums! It is a great place to find the help you need, both from other users, HP experts and other support personnel. I understand that your display on your All-in-One is black on start up, and that you have been trying to connect an external display. I am happy to assist.

Now I can certainly understand your frustration, because of the circular nature of the problem. I would suggest you focus on the main display first. I realize you have probably already tried this, but just in case go through this page:

HP and Compaq All-in-One and HP TouchSmart Desktop PCs - Screen is Blank after Starting the Computer

If you still do not have any response on the main display, then you are pretty much left with a repair option, as you cannot get an external to work without loading drivers for the USB adapter. So if you wish to check your repair options, please use the following http://www.hp.com/contacthp and create a case for your issue and contact HP. If you live outside the US/Canada, please click the link below to get the contact information for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html

[Mgre3]

What was the fix?

I have the same problem

[jdmasonn]

Did anyone ever get a solution to this issue.  I would love to test the display before going the route of replacing the motherboard.  Thanks

[Tardis40]

Hi @jdmasonn,

Thanks for becoming a member of the HP Support Forums. I understand you are having an issue with black screen. I will be glad to help you.

Please post the full product number and operating system in use on your computer. See the following, if you need help with that information.
How Do I Find My Model Number or Product Number?
Is the Windows Version on My Computer 32-bit or 64-bit?

Please get back to me with above information, so I can help you better.

[docbrown1885]

I am having the same issue and I can't use my keyboard, only the mouse I can operate, my USB ports won't read my Keyboard because of this black screen issue... also my AiO keeps going in a sleep mode for 30 seconds and wakes then back to sleep again and wakes every 30 seconds becaise the power light blinks off ever 30 seconds along with the opticle mouse, plesae help?

[longisldr]

I have the same issue. I have replaced the power inverter, motherboard and video cables and nothing helped. Don't waste your money just yet. I have been going through these boards and so many people have the same issue and I havent found one solution. Not good for an HP product and what seems to be a complete lack of cooperation on HP's part. So many problems but no solution! Come on now. They just want us to go out and buy the latest and greatest system for another $1600.