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Ubuntu doesn't support VGA monitors without a DDC adapter.

Ubuntu doesn't support VGA monitors without a DDC adapter.

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DangoBravo
Posting Freak
821
12-20-2016, 09:03 AM
#1
I found a vintage IBM P200 CRT for retro gaming. It functioned well on Windows 10 with a few issues, but recently the system would constantly disconnect and reconnect the monitor until it froze when I applied my CRU settings. I’m considering switching to Linux for some time now, so I wanted to explore whether it could solve this problem. After updating Ubuntu and updating the graphics drivers (R9 380X), the monitor still didn’t appear in the boot manager and would disconnect once Ubuntu started. The xrandr command showed two DVI-D ports, but both were disconnected. Is there a way to fix this?
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DangoBravo
12-20-2016, 09:03 AM #1

I found a vintage IBM P200 CRT for retro gaming. It functioned well on Windows 10 with a few issues, but recently the system would constantly disconnect and reconnect the monitor until it froze when I applied my CRU settings. I’m considering switching to Linux for some time now, so I wanted to explore whether it could solve this problem. After updating Ubuntu and updating the graphics drivers (R9 380X), the monitor still didn’t appear in the boot manager and would disconnect once Ubuntu started. The xrandr command showed two DVI-D ports, but both were disconnected. Is there a way to fix this?

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KingNolan04
Member
156
12-20-2016, 09:18 AM
#2
I'd suggest trying a HDMI or DisplayPort to VGA adapter ... those may not care about what's connected to them and just blindly set the output resolution. Or maybe try a VGA to s-video / composite and then use a s-video/composite to vga to produce vga signal again. Here's a vga/rf/s-video/composite to vga : https://www.ebay.co.uk/itm/CCTV-Composit...3473806983
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KingNolan04
12-20-2016, 09:18 AM #2

I'd suggest trying a HDMI or DisplayPort to VGA adapter ... those may not care about what's connected to them and just blindly set the output resolution. Or maybe try a VGA to s-video / composite and then use a s-video/composite to vga to produce vga signal again. Here's a vga/rf/s-video/composite to vga : https://www.ebay.co.uk/itm/CCTV-Composit...3473806983

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ConorBBB
Junior Member
42
12-22-2016, 06:20 AM
#3
Thanks for the feedback! It seems the HDMI to VGA adapter performed well. Maybe newer graphics cards are no longer compatible with analog signals.
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ConorBBB
12-22-2016, 06:20 AM #3

Thanks for the feedback! It seems the HDMI to VGA adapter performed well. Maybe newer graphics cards are no longer compatible with analog signals.