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Graham

Helppppppppp with pc.

73 posts in this topic

This is so odd.....I have also googled and came up with the same ideas as what has already been said. Any chance of testing the external monitor to see if it's working? It might have blown.....going right out there with this though lol

Graham likes this

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Here is the gist of it copied from the site:

 

 
Having screen problems? Recently changed your display resolution in Windows and now left with a blank or black screen which you can’t change back?

It’s annoying when this happens! It’s happened to me numerous times and I have to say that it’s quite terrible that Windows does not have a built-in mechanism to detect whether or not a monitor can support a particular resolution or refresh rate.

Anyway, if you’re already in the situation and all you see is the BIOS loading, the Windows logo, and then the screen just goes blank once Windows starts to load, then there are two basic ways to get back to your original settings.

 

Connect computer to a more advanced monitor – One way to see everything again is to simply connect the computer to a monitor that can support a higher resolution. So if you have an old 15 inch monitor and it can’t display 1600×1200, connect the monitor to a newer screen, log into Windows and change the display settings back to what is was originally.


Start the computer in Safe Mode – The second way to get back your original display settings is to start up in Safe Mode, which basically loads Windows in a stripped down state. Safe Mode loads up at a lower resolution and therefore allows you to log in and change the settings back.To start up in Safe Mode, you simply press and hold the F8 key when the computer starts to boot up. This is usually when you see the manufactures logo and the BIOS being loaded. Once you press F8, you’ll be presented with a set of options as shown below:


Go ahead and select Safe Mode. If for some reason Safe Mode does not work, you can also try selecting Enable VGA Mode. Enable VGA Mode can also be useful for situations where you try to extend your desktop onto another monitor or select another monitor to use as your primary monitor.

The problem that can sometimes occur there is that Windows sends the signal to a different port than where you have your external monitor connected and it will therefore give you the blank screen whenever it loads up. Again, Windows does not automatically detect that there isn’t monitor connected and it won’t  revert back to its original settings!

Now that you’re in Windows, you can change the resolution or refresh rate by right-clicking on the Desktop, choosing Properties and clicking on the Settings tab. In Windows 7/8, you have to choose Screen Resolution.


Windows XP Display Settings

windows 7 display settingsWindows 7 Display Settings

For screen resolution, move the slide bar over to the LEFT. This will lower the resolution and allow your monitor to display Windows correctly. In Windows 7, you just pick a resolution from the drop down box. If the refresh rate is too high, click on the Advanced button or Advanced settings link and then click on the Monitor tab.

Here is also where you can change back your primary monitor to 1 if 2 gave you a blank screen. Also, you can uncheck the extend my desktop option.

From the drop down, choose a lower value for the screen refresh rate. Go ahead and reboot your computer normally and everything should load up fine.

Remember, in Windows, when you change your display settings, always click APPLY first. If you simply click OK, you won’t get the dialog shown below whereby Windows will revert back to the original settings if you don’t answer within 15 seconds.

When you click Apply, Windows will change the display to what you chose, in which case the screen will go black or blank if it can’t support it. However, this dialog will be up and if you don’t click on anything, it will revert back to the original settings! So you won’t have to waste time going through Safe Mode,, 

Brantuk likes this

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Graham , I know you have sort of tried this already but can you follow this exactly and see if it works. The first link just puts you in the correct safe mode. The second shows you how to set up 2nd monitor.

 

Both are for Dell Laptops.

 

http://www.dell.com/support/article/us/en/19/SLN149317

 

http://www.dell.com/support/article/us/en/04/SLN151727/en?c=us&l=en&s=bsd&cs=04

 

WARNING WARNING THIS COULD SCREW YOUR LAPTOP - you take the risk. It the above doesn't work and only as a last resort you can force it by changing the registry - BUT ONLY IF ALL ELSE FAILS SCREW THIS AND YOU WILL HAVE TO REBUILD.

 

http://www.dreamincode.net/forums/topic/16430-changing-screen-resolution-without-the-gui/

Graham likes this

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Sorry folks been with a fellow member who drove all the way down to see me with his mount.

Many thanks for the posts will now go through them and try everything.

 

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Well I have been through all of the above again to no avail.

I tried the monitor off this pc which is a new hi spec monitor and all I get is the same 'no signal' message.

Tried safe mode in all forms and turning on VGA but all I get is the same old black screen.

With my limited knowledge  I am getting the feeling I have done something to the graphics card setting which is why it wont work any screens.

Looks like I need a new laptop.:(

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I am off to ELAC meeting but if the laptop shows bios on startup and shows you readable details up until Windows GUI starts then there is nothing wrong with the graphics cars on the Laptop IMHO. You have most likely "screwed" up the settings of the graphics but that should be all. I will have a think during the meeting and if you haven't gone mad I will try and help in the morning. Clear Skies.  If you see things on start up on the laptop then at least VGA mode is woring. Setting resolution or refresh freq on a monitor will just give you a black screen. Check there is no reser button on the monitor and if there is press it - it might at least display the Windows GUI.

 

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just thinking out loud

question to the IT savvy

would a recovery disc help??

 

Graham likes this

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I might be able to recover it using the XP disc but it would wipe out the service packs and I need them for the astro software. 

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If you can't see the screen you might not be able to recover your lappy.....and you will lose everything on it. I'm watching a Youtube vid on a guy who fixes this kind of issue, 1st point of call is to power down the lappy, unplug it and remove the battery, hold down the power button for 60 seconds then put the power and battery back in and power it up, that should *reset* it....maybe. Seems you have tried that?

2nd option - involves a dodgy RAM module but I doubt this is your issue

 

3rd option - sync an external monitor to replace the display from the laptop. Hook up the laptop to an external monitor then press a toggle key (ex. FN+F5, or F4, or F10 depending on your laptop. You can do this with a blank laptop display.

 

I'm sure the external monitor works, it *should* work with Win XP, have you already had it running on there before?

 

Edit: are you plugging the external monitor in BEFORE you turn the power on or after? also make sure the external is powered ON when you start up too.....little things lol

Here is the vid I am watching
https://www.youtube.com/watch?v=2zby6_IK3kg

 

Ha edit again...re-reading the thread, does your lappy start up in safe mode, or does it not work at all now? if it works in safe mode, can you not find control panel/appearance and themes/display?

 

 

Edited by Celeste

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Hi Nicky.

The laptop will run in all modes I just cannot see it on the screen.

What I have changed is the screen setting in windows.

The screen works fine in the BIOS mode ie start up and in test mode.

The problem lies within Windows XP because as soon as XP fires up the screen goes off.

Even in safe mode windows still fires up be it in a very basic set up but it still is controlling the laptop screen and any other external screen.

As soon as XP kicks in the screen output stops. 

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Try going in safe mode then right click anywhere on desktop and there should be an option for screen settings go into that and select your screen and resolution it should then show you which resolutions are acceptable. Sounds like you have selected a resolution that your monitor cannot display.

Graham likes this

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Hi starman 

Tried that __ nothing doing. 

I can right click any where on the screen and nothing happens or at least not that I can see. 

Thanks 

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Hi,

On boot up if you hit F2, can you enter the bios screen?

 

Steve

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Let me try to show you what is going on.

 

Hit button 8 to get this.

 

My problem 1.jpg

 

select safe mode.

Get this.

 

My problem 2.jpg

 

Hit enter get this.

This screen lasts for a while before the laptop loads XP and yet another black screen.

My problem 3.jpg

Dont know if that helps explain what is going on.

I certainly hope it means something to some one.

Thanks

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Hi,

This is the advanced startup, F2 should bring up Bios - please can you try that?

 

Steve

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Hi Steve

Yes I can get that as well no problem

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Hi,

Cool - is there an option for video?

Graham likes this

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great - use the down arrow to highlight 'video' and press enter

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That's not was expected..

 

Please can you try the onboard devices option?

 

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Damn - there doesn't seem to be an option to reset the video card.

 

Have you tried to connect the laptop to an external monitor?

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