amdgpu: Unsupported power profile mode 0

fr flag

I shutdown my computer today to try to boot it back up. I am getting the message: [6.043685] amdgpu 0000:04:00.0: Unsupported power profile mode 0 on RENOIR on a black screen. What is this and can I fix it?

24601 avatar
in flag
seems to be a bug (apparently now fixed in newer versions of the Kernel) see [this reference]( and [this one](
kr flag


Disclaimer: IT DID WORK ON MY MACHINE: Linux Xubuntu 20.04 this does not mean this is the proper solution, or even a "solver", but, rather a by-passer so to speak.

My pc specifications:

  • Motherboard: ASUS, B450M

  • Processor: AMD Ryzen 7 5700G, 8-Core, 16-Threads, 3.8GHz (4.6GHz Turbo), Cache 20MB, AM4, 100-100000263BOX

  • RAM: Team Group T-Force Dark Z 32GB (2x16) DDR4 3600MHz RED, TDZRD432G3600HC18JDC01

My problems ended when I tried formating my pc to Linux Xubuntu 20.04, using a bootable flash drive. The boot menu showed up, I ctrl + alt + del out of it and the pc got back to normal.

mx flag

While searching for a different issue, I found a workaround. Try using the modesetting driver for the AMD gpu. This can be done by creating a file /etc/X11/xorg.conf.d/20-amdgpu.conf with the following content:

# To workaround bug
Section "Device"
     Identifier "AMD"
     Driver "modesetting"

Let me know if it works. For debugging, post the output of the command inxi -G

$ inxi -G
Graphics:  Device-1: NVIDIA TU116M [GeForce GTX 1660 Ti Mobile] driver: nvidia v: 470.57.02 
       Device-2: Advanced Micro Devices [AMD/ATI] Renoir driver: amdgpu v: kernel 
       Display: x11 server: X.Org 1.20.11 driver: modesetting tty: N/A 
       OpenGL: renderer: AMD RENOIR (DRM 3.40.0 5.11.0-25-lowlatency LLVM 12.0.0) v: 4.6 Mesa 21.0.3 

Note:My system has dual graphics and I have enabled backports so the output may be a little different; the main thing is that the X11 driver should be modesetting.

in flag
Is it not so that the modesetting driver will disable all on-GPU acceleration for 3d?
mx flag
@eudoxos nope games etc still ran fine with the modesetting driver. The default amdgpu driver started working for me again around 3 weeks ago, so the workaround may not be necessary now.

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