BIOS & OS screens - can't make full screen

May 23, 2010 at 09:54:06
Specs: Windows XP
Hi,

Can anyone help me fix this problem please?

I've just installed XP Pro on my Compaq 6720s (80 gig HDD, 1 gig RAM, Celeron M processor) and downloaded and installed the correct chipset and graphics drivers from the HP site. The resolution changed as expected after the reboot but the screen won't go to full width and height. I've got about 3-4 inch of black border down the right hand side and the start button and icon tray is about .75 inch from the bottom, with the green from the start button and the blue from the icon tray extending to the bottom of the screen in a kind of blur effect.

I've done a right-click on the screen, selected the graphic options and ensured that it is set to full screen but it makes no difference. I've tried all the other options there too and none of them will make it go full screen.

The thing is that the BIOS set-up screen and XP boot screen are also the same! I have 2 of these laptops and I'm fairly sure that when I installed XP on my other machine a few years ago the BIOS was in full screen mode then.

Things I've done to try and fix :

* Deleted the graphics driver and tried the latest version from here http://downloadcenter.intel.com/Det... but when I try to install it, it says "this operating system is not supported. Setup will exit" !

* Downloaded and run HPQFlash (68MDU) - made no difference

* Connected an external monitor to it and the screen shows fine on that, in the correct size and resolution.

The person I bought it from has a picture of it showing the BIOS screen in full width from only a few days ago. (The reason he was selling it was because he couldn't get the XP install disk to recognise the HDD but I know that this is easily fixed by disabling the SATA native state). There is a very small possibility that he has swapped the screen since the photo was taken and this screen if faulty, but I'm pretty sure this is not the case as I can make out the same small scuff marks of the screen casing in his pic as I can on it here.

Does anyone know what could be wrong please before I shell out £70 for a new screen? I'd really appreciate your help.

Thanks,

Rob


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#1
May 23, 2010 at 13:52:58
Changing the screen resolution sometimes involves the additional step of adjusting the picture width & height using the monitor's own adjustment controls.

These will be the buttons on the front or side of the monitor, which may either adjust the width & height directly or via an on-screen menu which you open with the monitor's 'menu' button.


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#2
May 23, 2010 at 15:24:45
Thanks, but it's not that. I already have another identical laptop so am familiar with the settings. I've asked advice on some other forums and general consensus seems to be that I should try the panel cable from my other one and see if that works, ie. most people seem to think that the cable is damaged and a new one would fix the problem. If not that then they suspect it will probably need a new panel.

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#3
May 23, 2010 at 15:40:50
"The thing is that the BIOS set-up screen and XP boot screen are also the same!"

That says that it's not a driver problem. The bios display is done without a driver. Every graphics adapter has a built-in basic hardware mode that doesn't require a driver.

You might want to look through your laptop manual very closely. See if you can find any display options that you can try tweaking.

The three most important things in computing:
1. Backups, 2. Backups and 3. Backups.


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Related Solutions

#4
May 23, 2010 at 15:43:29
Aegis, thanks, see my reply above yours.

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#5
May 23, 2010 at 16:16:34
"I already have another identical laptop so am familiar with the settings."

If that's what you meant, I still say go through your manual, maybe a few times. :-)

The three most important things in computing:
1. Backups, 2. Backups and 3. Backups.


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#6
May 23, 2010 at 16:45:22
Hi, how's this for a puzzle....

I'd already installed the chipset and graphics drivers and rebooted but there was no difference. I've just installed the Broadcom wireless driver, rebooted it and now the screen is full size!

Ho-hum.....

Dodgy panel wire?


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#7
May 23, 2010 at 17:16:28
:(

Back to 80% width again and 3" righthand side black border after reboot following SP2 install.

Why is it doing this? Presumably it's not the panel itself as the display was fine 10 mins ago.


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