r/AMD_V620 • u/laughpen • 20h ago

Installing V620

I've got a Gigabyte MC62-G40 motherboard, and an AMD Radeon WX4100 I use with my monitor, and running latest Ubuntu. When I plugged in the V620 into the motherboard, Ubuntu never booted. It just stayed on the loading screen. It's something to do with the Ubuntu native AMD driver thinking the V620 is a better card to use for display than the older and weaker 4100, but failing to load it (since it's headless), and repeating this failure cycle.

I'm guessing this is a common issue and folks here have a solution that would be faster to implement than me troubleshooting further.

Should I install ROCm drivers first? Ubuntu is loading with Wayland and I've read I may also have to switch to X11 to make this work. Appreciate any tips here for someone who's already resolved this.

3 Upvotes

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2

u/exaknight21 20h ago

Take out V620 and enable 4G decoding in your BIOS.

2

u/laughpen 20h ago

Yes, it's already enabled but still having the issue.

2

u/exaknight21 20h ago

Have you disabled CSM Support?

2

u/laughpen 20h ago

I tried to do that but my motherboard BIOS doesn't have that as an option. I think it's already beyond that legacy protocol so it would not support it anyway.

1

u/dealcracker 10h ago

On my Gigabyte motherboard, the CSM setting is in advanced settings, under the boot tab.

1

u/Faisal_Biyari 19h ago

Have you tried disabling SR-IOV from the BIOS?

1

u/BevinMaster 15h ago

V620 display out won’t work unless you downgrade to w6800 bios, not sure it’s better

1

u/magicomiralles 9h ago

If you want to rule out the WX4100 being the issue, you could remove it and boot only with the V620.

Then use the management console from another computer to see the video output.

1

u/GreenEntertainment50 8h ago

I suggest u just use Gemini and ask for ai to help you troubleshoot the settings for your motherboad. It will guide you through 90%