MAC G4 RAGE 128 PCI GRAPHIC don't work with SAMSUNG E2220N

Question

I connect POWER MAC G4 to a samsung E2220N monitor (VGA cable)
The power mac recognize the monitor and propose all mode.
I chose 1920x1080 resolution.
The power MAC G4 work well in this mode
But when I want to restart the power MAC, It seems to block on boot with no start sound
and a black screen.
So I connect the old screen in 1024x768 mode and on power up the mac starts normally.
The power mac G4 has a RAGE 128 PCI card with 16MB RAM ROM version 113-574070-204
What can I do ? update VGA card firmware ? make the mac start in 1024x768 mode then switch to 1920x1080 ? ...

Answer 1

Welcome!
The Rage 128 card is pretty limited by today's technology. With older Macs, it was common for the computer to start to a fixed default resolution and then change to the user's setting after all the extensions and preferences loaded. It's possible that the card or the monitor are trying for an unsupported resolution at startup.
make the mac start in 1024x768 mode then switch to 1920x1080
If performance on the hi-res setting is acceptable, this would be more cost-effective than a new video card. Finding Mac PCI video cards is getting harder as they have not been made in for ~5 years. A used ATI 128 Nexus would double the VRAM to 32MB but the GPU† is basically the same and you now have.
An original Radeon Mac edition card would be excellent (32MB); it's successor, the Radeon 7000 would be an improvement over what you now have but its GPU was not quite as powerful as the original Radeon. The last PCI Mac video card was the ATI Radeon Mac Edition 9200. It basically had the Radeon 7000's GPU but carried 128MB VRAM. However, it does work as well in OS9 if you need to use that system.
What can I do ? update VGA card firmware ?
Unfortunately, since AMD bought ATI, it has bee much harder find Mac resources on their site. I failed with a brief look this morning--will tried later today with a more thorough search.
Allan
† --GPU = graphics processing unit.