No video signal after changing resolution...

Hi guys...
I have had this issue in the past.
I have an ATI Radeon 9000 on a G4 Quicksilver. I have had it hooked up, for the last few years, to my Toshiba Regza 42" LCD utilizing a DVI to HDMI connector.
Recently, my wife and I have decided to sell the Quicksilver so we flattened the hard drives and did a clean install of Leopard.
From there, I upgraded Leopard from 10.5 to 10.5.8 and then went to change the resolution to 800 x 600 as I had in the past so I could test out VLC's speed. The signal went out...and never came back.
Not panicking (I had a prior issue on this board and it was fixed), I restarted in Safe Mode. However, when I went to Safe Mode, the resolution I wanted was already chosen and when I clicked on it again and restarted OUT of Safe Mode, I'm STILL getting "No Video Signal" on the Regza.
I've also noticed that while 800 x 600 works (in Safe Mode), you cannot restart into that resolution AND it's surrounded by black bars rather than filling the whole screen like it used to. I don't get this.
I've been told that I may have to erase the entire set of drives again and install only up to 10.5.6 or lower as this is an Apple resolution issue.
I REALLY don't wanna do this.
Is there a way to fix this issue?
Thanks!

1920 x 1080 and 800 x 600 so far. I haven't had the guts to try anything else. I lost Safe Mode by going to 640 x 480 once as well as 1024 x 768.
The issue is that the Regza can be set to the first to in Safe Mode but will not reboot to these resolutions when booting normally.

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Last edited by foobar42 (2014-10-21 12:36:52)

Quote from: Bas on 29-March-08, 19:15:31
Put the old card back in, does it work again?
Anyway, put the old card back in first, see if everything still functions.
Quote from: Fredrik Åsenius on 29-March-08, 22:21:29
Yes, and I was also thinking about the two tuner cards. Do what Bas says first, and only then without them and their drivers.
Correction, three cards!
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This account is no longer active. Contact ShadesOfGray for current posts and information.

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