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M4438G don't detect DVI monitor

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M4438G don't detect DVI monitor

Postby loshal » Mon Jan 01, 2007 2:25 pm

My Fujitsu-Siemens Amilo M4438G with a GeForce Go 6800 graphics card don't seem to detect an external monitor connected to the DVI connector. When I start up the computer is first the BIOS startup screen followed by the Windows XP boot screen shown on both the internal and external display. But the Windows login screen is only shown on the internal display, the external monitor becomes black and indicates no input signal.

When I open the nVidia tab on display properties the tab for "nView Dispaly Settings" isn't there. Instead there is a tab called "Digital Flat Panel Settings". So it seems as if the graphics card don't detect the external monitor.

The external monitor works if I use a DVI to VGA adapter and connects to the VGA input of the monitor. Using this connection I can find the "nView Display Settings" tab.

The external monitor also works when I start in Windows XP safe mode.

I've tested with my Samsung 940B monitor and a HP monitor and can't get the DVI to work. But it does work with a Dell 1800FP!!!

Graphics driver version: 79.11 (the latest supplied by F-S).
Video bios version: 5.41.02.39.49.

Does anyone have an idea about what might cause this problem?
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Postby aspettl » Fri Jan 05, 2007 4:02 pm

You could try another driver, maybe that helps.

Regards
Aaron
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Postby loshal » Sat Jan 06, 2007 1:04 pm

Thanks for your reply!

Before posting my question I tried to install the 84.69 driver but ran into problem with the nv4_mini.sys file which caused a blue screen when booting.

Now I've installed the 84.25 driver but it doesn't solve the problem with the DVI monitor. With the new driver the "nView display settings" menu is available but there is only the internal display to choose from, so it still doesn't detect my external Samsung monitor.

I've also tried two other monitors. An LG monitor seemed to work OK at first but when I started the computer from suspend mode it didn't detect the monitor.

It is such a strange behaviour so I suspect it might be a hardware problem.
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Re: M4438G don't detect DVI monitor

Postby aspettl » Sat Jan 06, 2007 2:07 pm

In the German forum a user tried several DVI monitors with his M1437 (ATI graphics) - he got only one out of three to work reliably, as far as I remember.

loshal wrote:Video bios version: 5.41.02.39.49.

I think there is a newer one.

Regards
Aaron
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Postby loshal » Sun Jan 07, 2007 11:30 pm

It is interesting to know that someone else has had a similar problem. I've talked to a computer shop and they had experienced a few computers that didn't work with some monitors. In those few cases they believed it was a hardware problem.

You're quite right, there is a newer version of the video bios. I haven't upgraded since it seems to be a little risky. I'm not sure I'm willing to take the risk of upgrading since I can use the monitor with a analog signal (even though the picture is better using DVI).

I'm also considering to let F-S to hava a look at the computer (if I don't have to pay...).

Regards,

Per
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