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Do we need a new graphics card for a monifor that is going to sleep? The monitor (an HP that came with the computer) doe not work and wonder if a new card will correct the problem.

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Hi there,

Your monitor does not have graphics origination hardware so much as input recognition of the video card in your computer tower.

Borrow a monitor from a friend and see if your computer displays normally on it. If it does, you need a new monitor. If it doesn't, your computer needs a new video card or has other motherboard issues.

It's just that simple.

Best Regards

Posted on Sep 11, 2010


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Pavilion p7-1148 PC with HP2301 monitor goes to sleep during boot up

hello anon..
why not test the monitor on another PC to prove which box is bad
the mon or Pc.
simple no?
NO OS stated. be nice to know which of 20 OS it is. Windows something is my wild guess. but there are so many, now.

the monitor will always tell you no sig ,
one PC first. this gets the VGA chip alive first. with all sigs
then turn on the Monitor ,if those sigs are missing the monitor always tells you they are, and will not lie to you.
that monitor is newer. not relic, and new monitors never do self sleep like in year 2002. there is no internal sleep on your monitor
it only sleeps on DEMAND, from PC VGA card (lets to VGA ok>?)
simple is easier to troubleshoot.
the 2 sync lines do the sleep mode per VESA spec.

I bet the monitor tests prefectly on any other PC.
I bet.
so lets go from that fact, and work the PC end. make sense?
ok so the VGA chip is BAD.
right, but what can make it bad even when not BAD really.
answer lots, but wait , ive no idea at all what you have.
p7-1148 PC is a desktop

and many desktops , vast, have 2 video chips
one on the MOBO and one in the PCI slot.
i cant see your Desktop rear so must go wild guessing now.
the first thing i do with any older PC is clean all that lint out.
after all if the VGA chip overheats or CPU they shut down.
all do. every one. made does that overheated.

HP has full support page on this nice PC. Decktops are my joy.

im reading your product spec, now. online at hp
it tells me this PC comes with many options video cards etc.
so Ill not guess now. that. (I open the case and look is what I do)
it has option HDMI card there, ? does yours?>

here is your graphic page

Integrated video is not available if a graphics card is installed.
  • Radeon HD 6370D, 6410D, 6530D or 6550D Graphics (model dependent based on processor)
  • Supports PCI Express x16 graphics cards
  • Two DVI-D ports (Both ports can be used at the same time)
the above means, that you are using ON BOARD VGA or
the VGA Card.
which is it , the one you use is failing.
if a card remove it and use the OTHER VGA JACK (onboard)
test that.

so open the case per online manual.
see 2 fans, make them clean,
make heat sinks lint free.
now that it has Fresh air we see if the PSU works.
if the PSU is ok,
diagnosis is serial process, i check the coin cell on each i touch.
after lint removed. 2.9vdc min, new is 3.3vdc.
then i gander at that PCI video card, is the aux power jack fell off?
black yellow wire set, if present , all fast cards have that.
then the video card GPU chip see that, see if the heat sink on it is clean? and i fitted with a fan does said fan work?
like that.
beyond that , is more test, ill stop here, most here fear opening case.
see upgrading guide here, for access to pc,

Sep 07, 2017 | HP Computers & Internet

2 Answers

How do I fix the error no vga input signal no dvi input signal monitor going to sleep

Check if you VGA is properly settled in the PCI slot. Try to take it out, clean the slot for dust.
If that doesn't help, it is well possible that you VGA is not working any more.

Jun 10, 2012 | HP Computers & Internet

1 Answer

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Sounds like your monitor is not processing the resolution signal from the graphics card. Reboot the computer in "safe mode with networking", from there you can play around with the resolution, start low resolution and work your way up to test the monitor.

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Monitor went to sleep and won't wake up

It sounds like a driver issue, but more likely the monitor driver, not the video card, since the other monitor works properly.
If you go into the video properties, check the monitor settings. You should be able to switch it to a generic monitor. You also need to make sure that you have the correct monitor refresh frequency set. If you have a mis-match, the video card could send signals at a rate the monitor can;t handle, which is why it won't "wake" even after a reboot and might need to be unplugeed to get it to come back on.

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1 Answer

Hp computer monitor

Hey, the problem you are getting is caused by the pc, when you switch on the pc it sends a signal from the graphics card to the monitor to come off sleep mode and display a picture,

it could be the graphics card, or memory or something more serious,
would try taking out the graphics card and memory and putting them back in see if the machine starts up.. works most of the time..

All the best


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Can't see screen to install diver for HP Compaq WF 1907

My friend just purchase this monitor yesterday. When she plugged it in to the back of the tower she received the same prompt u have mentioned. I was able to repair it because she simply did not realize that I had installed a new graphics card into her pc a few months ago. When u do this, you have to hook your monitor into the area where the new graphics card was installed. You can not plug your monitor into the same onboard card that u have previously plugged your monitor into.
Let me know, if by chance, u did install a new graphics card.
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btw, what graphics card are you using?

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