Compac computer with no vga signal

my computer keeps saying no vga signal

Hello terry1988,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand you are getting an error on your monitor that says "No VGA Signal". First, I would advise you to check to ensure that all your cables are connected correctly, ensure the one that goes from your computer to your monitor is securely plugged in.
I am also providing you with an HP Support document: Flat Panel Monitor Displays Message about No Signal, Signal out of Range, Sleep, or Power Save, which should help you resolve this issue as well.
Please re-post if you require additional support. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
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Computer Will Not Start, No DVI or VGA Signal, Beeping

My desktop HP was working fine until recently. I want to buy a new graphics card, so I took off the side of the tower to check if I have a place to install the new graphics card. Before I could do anything, I had to leave home, so I replaced the side of the tower. I DID NOT touch anything inside of the unit at any time, I only touched the side. Now, when I try to turn the computer on, the screen says that there is no DVI or VGA signal and the computer beeps at me (short, then long). I disconnected the cables from the back of the computer and reconnected them, and I cleaned off the fans,which didn't fix it. I looked up the beep code, but nothing seemed to make sense to me there or help me at all for that matter. I have no clue how to fix this! Please help!

Something has been dislodged during your "look-see". Suggest you read this guide: http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph03886&tmp_task=solveCategory&lc=en&dlc=en&cc=...
Troubleshooter for Video:http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00061509&tmp_task=solveCategory&lc=en&dlc=en&cc...
I am a volunteer. I am not an HP employee.
To say THANK YOU, press the "thumbs up symbol" to render a KUDO. Please click Accept as Solution, if your problem is solved. You can render both Solution and KUDO.
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Can I use the Apple ADC to DVI adapter with a VGA monitor?

Hey everybody,
I have a quick question. I work on computers fr friends and family as a hobby. I have an ADC monitor and need ot be able to hook up computers with a VGA port on them to it. Can I use the Apple ADC to DVI adapter along with an Apple DVI to VGA adapter to successfully connect VGA computers to my ADC display? I was assuming this would work and ordered both adapters but now I have made myself nervous about weather or not this will actually work. Has anybody out there successfully done this? Thanks for your help in advance everybody.

You can't run an ADC display with a VGA computer without a converter. Adapters won't do it.
a VGA to ADC converter will drive the ADC display directly
<http://www.gefen.com/kvm/product.jsp?prod_id=1301>
If you have the Apple DVI to ADC adapter
<http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/wa/RSLID?mco=18 72D402&nplm=M8661LL/B>
you could use it with a VGA to DVI converter
<http://www.gefen.com/kvm/product.jsp?prod_id=1310>
It might be cheaper to get DVI graphics boards for the computers and use the Apple DVI to ADC adapter.
<http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/wa/RSLID?mco=18 72D402&nplm=M8661LL/B>
Your title says "Can I use the Apple ADC to DVI adapter with a VGA monitor?". If you want to connect a VGA monitor to a computer's ADC port you need the ADC to VGA adapter
<http://www.gefen.com/kvm/product.jsp?prod_id=1299> You can't use an ADC to DVI adapter followed by a DVI to VGA adapter, because the ADC to DVI adapter doesn't pass the analog video signals needed for VGA.

Sudden no DVI/VGA signal

Pavilion p6210y. Stock, nothing fancy.
Over a year ago my power supply exploded abut I replaced it with a Norwood Micro 350W I found in a free box. It worked just fine, we used the computer for about 6 months then set it aside because we got a laptop. The other week I started it again and it worked fine for about 30 minutes then the monitor shows me no DVI/VGA signal and go to sleep. The computer is still running. I let it rest for a day and then started it again and the same thing happened. Power supply? Motherboard?
Thanks!,
Joe, Mpls

Hi Joe,
Your PC might be full of dust and then overheating.
Try this procedure:
Unplug the PC and open it up. Clean out all the dust. Carefully remove and replace all the cables going to the motherboard one at a time. Do the same for the memory dimms and the video and sound cards if you have any. You might want to buy a can of compressed air to blow the dust out of the CPU heat sink. Plug your PC back in and give it a go.
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Does Mini Displayport to DVI adapter support analog VGA signal?

I'm just about to buy a macbook pro. Since the MDP (mini displayport) to DVI and MDP to VGA adapters are £20 a pop, I can only afford to get one. Obviously DVI is better in general, but VGA supports more older hardware, CRTs, and the spare VGA input on one of my displays (where the desktop uses the DVI).
What I'd like to know is does the MDP to DVI adapter also support the analog VGA signal on certain pins (like most physical desktop DVI ports do)? If it does, since I have about 3 or 4 DVI to VGA adapters lying around, I can get the MDP to DVI adapter and use the DVI to VGA adapters with it if necessary, but if it doesn't I might be better off getting the MDP to VGA...

No. Unlike DVI, which in the DVI-I configuration has both digital and analog pinouts, DisplayPort (and mini-DisplayPort) are purely digital. Mini-DP to DVI then DVI to VGA will not work. If you look carefully at the Apple Mini-DisplayPort to DVI adapter, you'll notice it's a DVI-D connector - digital pins only.
The Apple mini-DisplayPort to VGA adapter contains a digital-to-analog converter.
So, you'll have to choose. If you want VGA, get Apple's mini-DisplayPort to VGA adapter.

VGA signal output type mDP-VGA adapter

Howdy.
Working on a way to plug our new mini (early 09) into a crusty ol' analogue tv, whose best quality input is up to 576p component. Tv manual say to plug component source (either YPbPr, YCbCr or Y B-Y R-Y) into the component input on the tv (Y Pb Pr).
My understanding of signal types is limited, and I am looking at a VGA to component converter as my first preference option since svideo and composite are so crusty.
Can anyone be really specific on the exact type of signal output from the miniDP-VGA adapter? As far as I know, most computers output a vga signal referred to as RGB, which SOME tvs can read via component in. Can anyone tell me if this RGB equates to any of the above signals (such that i could simply use a vga-component cable that I already possess), or if i will definitely need to get a converter box? I have plugged my older mac mini into the tv (using dvi-vga adapter supplied and then vga-component cable i purchased form some dodgy online ebayer) and had no luck.
can anyone tell me the potential ramifications of messing around with this stuff? Can inputting incorrect signals damage any of my hardware?
does anyone have any brilliant ideas on how to run an early 2009 mac mini into a tv via component? At this stage it is going to cost me around $200 for a decent converter box , and being a younger generation I want a solution ASAP and would prefer not to wait weeks for shipping from the States.
It seems as though the new minis only do dvi-d, while my older one has dvi-i - this is why the dvi-video adapter is not compatible with the early 09 models. i have spoken to apple tech support several times but it seems as though they are getting their dvi types mixed up and don't understand my predicament fully, as their suggestions are not possible with dvi-d. Is there such a thing as a DVI-d to DVI-I adapter? Would it make any difference?
Any clarification people have to offer on this one would be greatly appreciated.

A few comments; first off, you can't damage a TV with wrong signal types, although some old TVs can be damaged from wrong timings. That's going to depend a lot on the TV's age whether it has a more modern, multi-sync type chassis or not.
The Mini DVI output on the new mini is DVI-I. That is how it is able to support the Mini DVI to VGA Adapter that Apple sells for the new mini. But you are right it no longer supports the Mini DVI to Video Adapter. But that is an issue with drivers and has nothing to do with the mini having a DVI-I output or not. But it is definitely Mini DVI-I.
So to connect a component converter box, you could use either the Mini DisplayPort or the Mini DVI output of the mini. I would tend to recommend the Mini DVI as being somewhat more standard. However, a Mac really wants to see something called a plug-and-display driver, which is also known as EDID, whenever it is connected to a display. So try and see if you can find a component video converter having a VGA input that has an EDID loaded into it or else the Mac will not be happy and it could all be money down the drain that would have better been spent on a new TV.
Hopefully you will get some more specific information from someone else. Good luck.

Mac mini late 2012 not working with small VGA monitor

I got a mac mini (late 2012 10.8.4 all updates installed) and it is working fine with samsung b2230 via VGA adapter. There is a small VGA monitor (PL8006 max at 1024*768) which works fine when connected to a PC.
When I connect the small VGA monitor to mac mini it is not displaying anything (monitor shows blue screen with letters VGA so I assue it is not getting any signal). Mac's resolution is set to 1024*768 with 60Hz (even tried with 800*600 without any success). Monitor is also not working with win 7 installed in mac mini using bootcamp.
Any thoughts?

i just found that when the VGA cable of the small monitor is slightly inserted into the VGA adaptor it works fine (this is not usable because there is no way to keep the pins at that level) and when the pins inserted fully / moved little it is not working. Since this happens only between these two devices can't find which one is faulty.

Both xp and windows 7 have video problems with my VGA connection using TV

both xp and windows 7 have video problems with my VGA connection using TV as my monitor when it gets to starting up windows no matter what version it will not I have let my mac on all night and still says starting windows or the windows 7 logo and nothing else will happen also when I use a 3rd patty software like peraills or other it works like a charm how to fix it?

To map the drive on your computer click on Start - RUN - type "\\192.168.1.1" and click ok... When prompted for Username and Password type "admin" and click ok... Now you will be able to see the folder which you have shared on your router, right click on it and select "Map network drive" and click on finish.
Now it will map the drive on your computer and you should be able to transfer the file from your computer to the USB drive.

Vga signal booster

can you buy a vga signal booster to allow the mac mini to work on any crt monitor?

It seems to me it would be better and make sense to just buy a computer that actually worked right out of the box without needing a VGA signal booster. Wait until next week to see what new stuff Apple releases at Macworld.

Ipad vga signal levels

3 out of 5 attempts to present Keynote (and other video enabled apps) presentations have failed. After some investigation I discovered that the failed talks (ipad could not drive video projector - iapd couldn't find project, and projector couldn't find ipad) were result of long cable lengths between projector and VGA connector that I plugged into dock-to-VGA adapter. These were 50' long cables in conference centers. I rustled up some more standard length cables after these very embarrassing failed attempts to give public presentations, and with shorter cables everything worked properly. I should also mentioned that numerous MacBook, MacBookPro and PC-types laptops all had no problem whatsoever driving VGA through a 50' cable.
Anyone else experience this problem? It makes it impossible to trust the iPad as a conference presentation device if iPad video signal levels are too low. Perhaps I have a defective iPad, or is this a systematic problem?
If I have to buy a VGA signal booster to carry along with an iPad, its absurd since these devices are nearly the size of the iPad itself!

I am not sure of what the official limit is, but a google search brought up 50' as the "practical" limit. Another site said 9 meters. I have seen some long vga cables in various conference rooms.
You may have an iPad with a reduced output. You could either try another ipad, if you know of one available, or take your ipad to the Apple store and see if an expert can test the output strength.

Is it possible to force the Macbook to output a VGA signal without EDID

Im an audio visual integrator and I'm constantly running into this issue that if the mac doesn't have EDID present it will not output VGA signal. Quite often we will convert VGA inputs to just RGBHV (or 5BNC) to run to a display or projector. Normally this works fine with most laptops but unfortunately not macs. I've used things like EDID minders in the past to get around this issue but I'm hoping there might be a way to get around this on the software side.

No, the video card cannot be exchanged - you have a pretty decent GPU there; not sure why you'd want to switch it out. You can upgrade the RAM to a maximum of 16GBs. Apple recommends upgrading in matching pairs, so I don't really think I'd try 4GB and 8GB stick.
Both Crucial and OWC have memory available for the new Macs. Both are reputable dealers and know Macs well and I would only buy from these sources (and I would buy Crucial, were it me).
Although your Mac didn't come with a users manual outlining the installation of the additional RAM, you can download the late 2011 model users guide as the models themselves are almost identical.
Good luck - write back with any questions.
Clinton

Problems with TV Out signal after upgrading to iOS 5.1

Has anyone experienced problems with TV Out signals on their iPad 2 using the Apple HDMI Adapter after upgrading to iOS 5.1? I am trying to connect to my HDTV after upgrading and cintunally receive an "Unsupported Video Signal" message with a blank/back screen. Prior to upgrading, I had no connection problems and could view TV Shows, Movies, Music Videos, Keynote, etc...without problems. I've been unable to find any resolution to this problem, even followed Apple guidance to detach and reattach the HDMI adapter without success. Seems like a software bug to me and it's a major problem when trying to conduct business or personal activities. Hopeing Apple has a fix in work already...anyone else have any ideas? Thx in advance...

Try a reset. Press & hold the Power and Home buttons together for 10+ seconds, ignoring the red power-off slider, until you see the Apple logo. It is safe to do, there should be no content loss. It is the same as rebooting your computer.
If that does not work, restore the iPad to the factory settings.

Connect to 32" LCD TV from Lenovo T61 with a VGA connector

Hi,
I am trying to connect to 32" LCD TV 1080P from T61 with a VGA connector. When I do (Fn+Ctrl+F7) I can see the T61's output on my TV if I set T61's display setting as 1280x768. Then If I increase the resolution on the TV the screen becomes black. I want to change the display setting to 1920x1080 so that I can see output as full screen on my TV.
Notebook setting as follows
Color Quality - 32 bit
Refresh Rate - 60 Hertz
How can I change the screen resolution?

Most likely the TV won't support higher resolutions via the VGA connector. But there is a workaround.
After spending several hours at a TV store last October, we found an obscure reference in the TV's manual stating this limitation. We also discovered that HDMI will support the max resolution. The T61p docking station has a DVI port that outputs a signal that can be converted to HDMI. We bought a DVI-to-HDMI conversion plug ($75) and took the docking station, conversion plug and an HDMI cable back to the store. Worked great so we bought the 65" LCD for trade shows. There are some settings to play with on both the T61p and the TV that will increase the image clarity significantly. The image is stunning at full res.

Flicker with ipad2 VGA connection

I recently bought an ipad2, hoping to use it for powerpoint/keynote presentations while travelling. The first time I used it with a VGA connector to a projector there was screen flicker, which I was told is due to different screen resolutions. How is this fixed?

Turn off the security and firmware on your computer while you are updating ,that should speed things up.

790XT G45 All Works but no vga signal

Please see specs in signature, i bought new chassis as below and since the transfer, no boot, everything runs cpu fan etc. but no vga signal.

Ensure that all power cables are connected.
Else:
Motherboard Grounding to case causing No Post
Test the motherboard outside of the case to verify that the motherboard is not shorting to the case and causing a problem
• With only the CPU and heat sink, memory, and video card (or onboard video) connected to the motherboard, place the motherboard on a non-conductive surface and retest the motherboard
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Compac computer with no vga signal

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