Video Glitch AMDGPU

[sjas_2009]

I have a rare video glitch when my machine shutdown, i have the lastest kernel 5.8 and a radeon rx 580 gpu. The glitch start when i change to manjaro xfce.
Here’s a pic for glitch:

I use the amdgpu drivers and the corectrl to make a little undervolt.

[Takei]

Could you revert the undervolting? Some GPUs tend to run near their stability limit and there can be errors when undervolted. Are there also errors when the GPU is under full load?

[sjas_2009]

Thanks men! Now i solved the problem just change some voltages values. The system was stable with the undervolting but now i change a little my old config and works perfect with no visual glitches.