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Old April 12th, 2006, 09:53 PM   #1
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Default no video signal untill windows boots up

Hi,

Got the latest NGO ATI driver and it works perfect... in windows (2000) only.
I cannot see the post screen, cannot enter bios setup. Once windows boots, I get the image.
What did I do wrong?
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Old April 13th, 2006, 12:17 AM   #2
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thats got nothing to do with the driver, that doesn't load till windows does.

i believe the Digital output (dvi) doesn't show up till your inside windows...?
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Old April 13th, 2006, 12:21 AM   #3
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Thanks, that may be it
I have a LCD monitor on VGA analog and a HDTV on DVI
I'll try to disconnect the DVI at boot to see what's going on
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Old April 13th, 2006, 12:28 AM   #4
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What monitor(s) and GFX card do you have?
Squall: DVI doesn't cause that kind of problem, i got a LCD monitor with DVI connection, and it works just as well as anything else. But your if GFX card treats the DVI connection as a secondary output then that may just happen, as BIOS/Post up always goes on the primary output.
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Old April 13th, 2006, 04:12 AM   #5
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I have an LCD Montior with both the DVI and Video hooked up. Both display during bootup. Either / or can be selected in windows, kind of like a dual display.

I have to watch it though, occasionally when installing operating systems, the installer or o/s defaults to VGA instead of DVI. Took me AGES to figure that one out a few months ago when I was installing a Beta of Vista. Which I took out to replace with Fedora Core 5 (go figure )!
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Old April 13th, 2006, 06:11 AM   #6
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Radeon 9200, 128MB
I have a LCD monitor on analog and HDTV on DVI
if they're both hooked up at boot time, I get no video signal on both untill windows loads the driver.
if I disconnect the DVI cable, I can see the POST and BIOS messages
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Old April 13th, 2006, 02:37 PM   #7
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If you leave both TVs on, and connected. Does it display on the DVI (HDTV) during boot, and then display on the VGA (LCD) in windows? That could be what's happening. As you have already setup a default to VGA or DualDisplay (Clone) within windows.
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Old April 14th, 2006, 02:19 PM   #8
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no, this is a known issue with Radeon cards and DVI

having the tv connected as well as the lcd at bootup results in neither showing up.. it is really more a video card problem.
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Old April 5th, 2007, 06:34 PM   #9
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i had the same problem, with a dell 22" flat panel monitor, i flashed the bios of my sapphire atlantis radeon 9000pro to the latest i could find in sapphire site.

my hypotesis is that the problem i think it was resolved is :

the hdcp specification is not supported by older ati cards, but a bios flash could solve the problem. I read a new about sapphire that stated they were correcting hdcp problem with bios updates. is your hdcp monitor considering u as a pirate if u dont have a card that supports it?.

now, with the monitor conected in dvi interface, i can see bios and operative system menus before windows boot.

but i have other problems (new) after the flashing, they are posted in another thread.

hope it helps
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Old April 5th, 2007, 07:06 PM   #10
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Quote:
Originally Posted by shocked17
i had the same problem, with a dell 22" flat panel monitor, i flashed the bios of my sapphire atlantis radeon 9000pro to the latest i could find in sapphire site.
I think is because you flashed your vga bios... (bad flash) so try to flash with the original version of the bios !
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