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Old 07.06.2015, 15:38
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Monitor "burning" computer circuit?

Hi just bought from a forum member a Samsung T260HD monitor.
I connected it to my computer with the DVI-D cable, but the monitor said "no signal".
I tried with a VGA cable, same message.

Then I reconnected my 22" monitor, that was working the last time I connected it (last night) and same problem.

The computer seems to start normally.

So, my question is: can this Samsung T260HD monitor have damaged some circuits/parts of my computer?

And if so, will it be expensive to repair?

Thank you for your insights!
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Old 08.06.2015, 10:55
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Re: Monitor "burning" computer circuit?

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Hi just bought from a forum member a Samsung T260HD monitor.
I connected it to my computer with the DVI-D cable, but the monitor said "no signal".
I tried with a VGA cable, same message.

Then I reconnected my 22" monitor, that was working the last time I connected it (last night) and same problem.

The computer seems to start normally.

So, my question is: can this Samsung T260HD monitor have damaged some circuits/parts of my computer?

And if so, will it be expensive to repair?

Thank you for your insights!
Seriously doubt that any damage was made!!!
Have you simply not switched the "input" to something else`?
Say you selected to have as "input" the HDCP instead of dvi, then you would get a no signal...

Look the official manual of T260HD, you have to press the source button a few times:
http://downloadcenter.samsung.com/co...T260HD_Eng.pdf
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Old 08.06.2015, 16:40
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Re: Monitor "burning" computer circuit?

Read my post again.

The monitor I have been using until I plugged the new one is NOT working either - meaning I get the "no signal" message on the screen.
And yes, I tried to switch all the connection modes on the new monitor, didn't help.

The problem is not the monitor.
I mean the monitor IS working, the computer IS working, but the connection doesn't work. The plug is kapputt.

I was able to use a video card with DVI plugs and that IS working with my "current" monitor!!!

SO ... here is my question again:
Is it possible that this new monitor interferes somehow and has burned the plug?

I am afraid to switch monitors again and to try to connect it to the video card and that it will again destroy the connectors ...

What are you techies thinking of this?
I am using the power cord that came with the monitor.
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Old 08.06.2015, 16:48
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Re: Monitor "burning" computer circuit?

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Read my post again.

The monitor I have been using until I plugged the new one is NOT working either - meaning I get the "no signal" message on the screen.
And yes, I tried to switch all the connection modes on the new monitor, didn't help.

The problem is not the monitor.
I mean the monitor IS working, the computer IS working, but the connection doesn't work. The plug is kapputt.

I was able to use a video card with DVI plugs and that IS working with my "current" monitor!!!

SO ... here is my question again:
Is it possible that this new monitor interferes somehow and has burned the plug?

I am afraid to switch monitors again and to try to connect it to the video card and that it will again destroy the connectors ...

What are you techies thinking of this?
I am using the power cord that came with the monitor.
You need to isolate the problem.

Limit yourself to one cable for all tests. Are you using the same DVI cable to 'prove' your existing monitor is okay?

Can you prove that the cable is okay and has no broken or bent pins?

I appreciate you may have already done this.
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Old 08.06.2015, 16:51
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Re: Monitor "burning" computer circuit?

I'd suggest it's physical - either the connector on the PC or the cable, damaged during the unplugging/replugging.

Check your BIOS - maybe somehow the onboard graphics got disabled. Unlikely, but better to check now than find out later.
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Old 08.06.2015, 16:55
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Re: Monitor "burning" computer circuit?

You might also consider checking the output frequency (display-settings); in case there is a mismatch, there will be no 'readable' signal.
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Old 08.06.2015, 16:58
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Re: Monitor "burning" computer circuit?

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SO ... here is my question again:
Is it possible that this new monitor interferes somehow and has burned the plug?

.
Highly unlikely (if I understand what you are trying to say).

You really just need to try your known good monitor with your computer and a known good cable.

If you get no joy then you ought to check your computer settings as suggested above.
Is it a Windows PC? If so, try booting in safe-mode to get a basic low-res video output.
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Old 08.06.2015, 17:04
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Re: Monitor "burning" computer circuit?

No nothing will be burned chill. (Monitor and computers have safety fuse)Yes maybe you have faulty cable, you can always buy another one. But first... your new monitor is also a TV and you can try to plug just a power cable and antenna, to check does it works. Now if that's ok and TV work the only thing (issue) left is resolution. Your new monitor have 1900x1200 resolution and maybe on your settings in pc you have some resolution that is not supported by this model. Try (when your old monitor is attached) to change resolution to 1900x1200 or if old monitor doesn't support that try 1024x768 that's pretty common res and almost every monitor will work with that settings. Then turn off pc attach new monitor and try again. If you dont know how to change resolution here is the link how to do it :

http://windows.microsoft.com/en-us/w...een-resolution

Hope this help.
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Old 08.06.2015, 17:11
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Re: Monitor "burning" computer circuit?

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Read my post again.

The monitor I have been using until I plugged the new one is NOT working either - meaning I get the "no signal" message on the screen.
And yes, I tried to switch all the connection modes on the new monitor, didn't help.

The problem is not the monitor.
I mean the monitor IS working, the computer IS working, but the connection doesn't work. The plug is kapputt.

I was able to use a video card with DVI plugs and that IS working with my "current" monitor!!!

SO ... here is my question again:
Is it possible that this new monitor interferes somehow and has burned the plug?

I am afraid to switch monitors again and to try to connect it to the video card and that it will again destroy the connectors ...

What are you techies thinking of this?
I am using the power cord that came with the monitor.

I read your post, but what came out of it, on my interpretation is that you are fiddling with something relatively basic, and that you are unable to resolve it yourself.

Therefore, what seemed obvious, on the "no signal", was that you have inadvertently switched the input on BOTH screens. Both would be selected to another input, not looking for the type of connection you have made.

Also, as another free piece of advice, avoid any condescending comment on someone trying to help you for free, especially from the first post.


Unfortunately, I have a bad temper and I am engineer working with digital TV and computer hardware/firmware/software, on a daily basis.

So I'd say, it's a missed opportunity.

Anyway, i'm sure others would offer you their wonderful advice and patience in a better way than myself.

Good luck!

PS: work on your initial description, when you seek for help. If you already tried to switch input on both monitors, then I'd say that's an important information which should have been communicated, don't you think ?
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Old 08.06.2015, 17:42
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Re: Monitor "burning" computer circuit?

The graphic card might have failed. The physical act of switching monitor might have triggered it. I've had similar things happen.
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Old 08.06.2015, 17:55
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Re: Monitor "burning" computer circuit?

First thank you all for your help!

I attached the pictures of the faulty vga/dvi plug (outside and inside) and of the dvi plugs of the working video card.


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I'd suggest it's physical - either the connector on the PC or the cable, damaged during the unplugging/replugging.

Check your BIOS - maybe somehow the onboard graphics got disabled. Unlikely, but better to check now than find out later.
Yes, that is what I think, that the plug, somehow got damaged.

The strange thing though is that I tried 2 different cables: VGA and DVI and both didn't work. But both of them land in a common connector inside- at least I think, and maybe that is the piece that became defective and would explain why both monitors get no signals from the computer, using 2 different cable types (vga, dvi).

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Highly unlikely (if I understand what you are trying to say).

You really just need to try your known good monitor with your computer and a known good cable.
Thank you for your input.
I did try the good monitor with 2 cables (vga and dvi) and it didn't work either:

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Then I reconnected my 22" monitor, that was working the last time I connected it (last night) and same problem.

Quote:
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No nothing will be burned chill. (Monitor and computers have safety fuse) ... your new monitor is also a TV and you can try to plug just a power cable and antenna, to check does it works.

Now if that's ok and TV work the only thing (issue) left is resolution. Your new monitor have 1900x1200 resolution and maybe on your settings in pc you have some resolution that is not supported by this model. Try (when your old monitor is attached) to change resolution to 1900x1200 or if old monitor doesn't support that try 1024x768 that's pretty common res and almost every monitor will work with that settings. Then turn off pc attach new monitor and try again.

Hope this help.
Thanks a lot.

I don't have an antenna, so I won't be able to test it. And I just want to use it as a monitor.


But as I wrote, the "current" monitor is working on the video card.

I am just a little concerned that plugging the new monitor in the card will also screw the plug in the card. But from what you wrote, this should be the case. If I "dare" to try it, I will have to check the resolution.

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Therefore, what seemed obvious, on the "no signal", was that you have inadvertently switched the input on BOTH screens. Both would be selected to another input, not looking for the type of connection you have made.
Good idea, but no, the input didn't switch on the "current monitor", it has only 1 mode.
As I wrote today, connecting it to the video card worked. So it is the VGA/DVI plug that has a problem.

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PS: work on your initial description, when you seek for help. If you already tried to switch input on both monitors, then I'd say that's an important information which should have been communicated, don't you think ?
Thank you for your input. Yes, I can imagine that my description was not perfect. I am not a "hardy" and tried to use the words that seemed appropriate.
In any case, thank you for your patience and taking the time to help me figuring this out.

Again: I was able to figure out that it is the VGA/DVI plug that doesn't work anymore.
Why, that is the question.
But as long as I have a solution now, I am happy.

Thank you all for your so effective help! And sorry if my description was not as clear as I thought it was ...
Attached Thumbnails
monitor-burning-computer-circuit-vga-dvi_plug_outside_171326_384.jpg   monitor-burning-computer-circuit-vga-dvi_plug_inside_184907_c1.jpg   monitor-burning-computer-circuit-dvi_video_card_191301_565.jpg  
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Old 08.06.2015, 18:15
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Re: Monitor "burning" computer circuit?

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Again: I was able to figure out that it is the VGA/DVI plug that doesn't work anymore.
By that, do you mean the motherboard VGA and DVI connectors do not work any more?
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Old 08.06.2015, 18:32
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Re: Monitor "burning" computer circuit?

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By that, do you mean the motherboard VGA and DVI connectors do not work any more?
Yes.
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Old 08.06.2015, 20:44
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Re: Monitor "burning" computer circuit?

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Yes.
This is normal. You have on-board graphics chipset and a PCIe add-on card. Only one of the two can render video at a time. Generally the PCIe card will automatically override the on-board video, although this can be changed in the BIOS often.
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Old 08.06.2015, 21:00
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Re: Monitor "burning" computer circuit?

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This is normal. You have on-board graphics chipset and a PCIe add-on card. Only one of the two can render video at a time. Generally the PCIe card will automatically override the on-board video, although this can be changed in the BIOS often.
If I understand you correctly, you say that only one of the two (" on-board graphics chipset " or "PCIe add-on card") can be used at the time.

Well, this was the case.
Until now, I only used the mother board DVI plug. Until it didn't work anymore - after I unplugged my "current" BenQ monitor and plugged the Samsung T260HD monitor.

After unplugging the "new" monitor and re-plugging the BEnQ monitor, it still didn't work.

It is only after plugging the BEnQ in the video card and it worked, that I figured out that the on-board plug/s was the problem.
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