Laptop will only boot/power on when external monitor is attached
I have a hp compaq nx9030
it will not boot or power on unless i connect an external monitor.
if iconnect an external monitor i can get both lcd and external monitor to display.
However if i remove the external monitor or if i turn the power off to the external monitor then the laptop looses all power and shuts off.
any help suggestions much appreciated.
i have tried various fixes with no joy, all alt and f keys and been in the bios but nothing in there to change.
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Re: laptop will only boot/power on when external monitor...
Sounds to me like you have a short inside your system somewhere, or you have a faulty display/graphics card is going bad. You will probably have to replace your display and/or graphics card. On most laptops, if they dont have a dedicated graphics card, and they use an embedded one, then the whole screen has to be replaced. if the graphics card Is dedicated, then you probably can just have the card replaced, and not the whole screen.
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You could have a loose video cable connection that attaches to the motherboard or you may have a faulty on-board video. Try
connecting an external monitor to your HP, power up the external
monitor fist and then boot up the HP laptop. The video will
automatically divert to the external monitor if the on-board video is
OK. This means the video cable/connector needs re-seating or the video cable is faulty.
Connecting an External Monitor or Data Projector You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key a few times. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8
You can switch to anexternal monitor by two methods.1. Connect the externalmonitor to the laptop's video port, power up the external monitor first and thelaptop. The video information will automatically switch to the externalmonitor.2. If you power up thelaptop first then you can switch the video output to the external monitor bypressing the Fn key and one of the Function keys, depending upon your make andmodel laptop. You can also toggle between the external monitor or both LCDscreen plus the external monitor or back to LCD screen only by pressing the Fnkey plus one of the function key. Here is a lkeycombinations for the laptops :-HP and Compaq = Fn + F4
Power up the external monitor first and then boot up the laptop, the video info will automatically divert to the external monitor. If you do not see a Windows image on the external monitor then it is definitely a motherboard issue, because the video card is built in on the motherboard. The Video card uses shared RAM (part of the RAM module/s ), try re-seating the RAM modules, also test the RAM modules. You can test the hard drive by removing the hard drive and connecting it to an USB hard drive adapter, then connect the adapter into a working computer's USB port. If the hard drive is OK, this computer will see it as an external storage device and you can open the various folders and files on the hard drive.
All you need to do is connect a monitor to the video port on the laptop, then power up the monitor first then boot up the laptop. The video signal will automatically divert to the external monitor first.