Kernel Panic and no Framebuffer with AMDGPU (9070xt)

svayar · n00b Joined: 15 Feb 2023 Posts: 14

Hi there, just aqcuired some new hardware and I've been trying to get gentoo going.

On my old machine (5600m dGPU) I've always ran a module-less initramfs-less kernel but I've been having trouble making that happen on my new machine. EFI framebuffer works fine with no firmware loaded or nomodeset but if I include the firmware in the image, the kernel (I assume) panics, I don't get a dmesg, nothing, so it likely doesn't even mount the root. Given that I also don't get any display output, I have no way of diagnosing further. Any ideas?

pietinger

svayar · n00b Joined: 15 Feb 2023 Posts: 14

Hmm, the graphics section of my config looks more or less like what you linked.

Here's lspci from liveGUI: http://0x0.st/8glH.txt
Here's dmesg from liveGUI http://0x0.st/8glX.txt
Aaand .config from kernel in question: http://0x0.st/8gl8.txt

If I skip loading *any* of the amdgpu firmware (thus gpu not initializing), I can poke around from a tty and use the system just fine. Problem only starts when I let the gpu (I assume, no way to tell what it's doing) initialize.

Admittedly, the kernel is not fully configured, but I honestly just wanted to get to a GUI and was gonna fix up everything else later.

I think I did keep a veeery old but working kernel config on my old machine's home directory (Both Ryzen + Radeon machines) which I'll put here just in case: https://pastebin.com/hhGk6MZd

pietinger · Posted: Sun Jun 08, 2025 7:47 pm Post subject: