Comment # 27 on bug 1193397 from Kourosh P.

(In reply to Nikolai Nikolaevskii from comment #26)
> (In reply to Nikolai Nikolaevskii from comment #17)
> > According to inxi output OP uses Intel Core i7-10700K + ASUSTeK PRIME Z490-A
> > + AMD Navi 21 video card.
> > With Intel Core i7-10700K he has 2 video cards: built-in Intel UHD 630 and
> > discrete AMD (previously Nvidia). But inxi shows only AMD Navi 21.
> > There are some settings in BIOS about video cards: disable/enable iGFX (i.e.
> > built-in), and which video card BIOS will initialize first - built-in or
> > discrete.
> > So, if built-in video card is disabled, but is set to be initialized first,
> > he may get observed behaviour.
> > 
> > To OP: please provide full output for command:
> > sudo inxi -aSCGImz
> 
> OK, theory was good, but failed.
> 
> New one:
> https://wiki.archlinux.org/title/AMDGPU#Issues_with_power_management_/
> _dynamic_re-activation_of_a_discrete_amdgpu_graphics_card
> 
> [QUOTE]
> Issues with power management / dynamic re-activation of a discrete amdgpu
> graphics card
> 
> If you encounter issues similar to [9], you can workaround the issue by
> setting the kernel parameter amdgpu.runpm=0, which prevents the dGPU from
> being powered down dynamically at runtime.
> [/QUOTE]
> 
> Try to use parameter amdgpu.runpm=0.

I tried that kernel parameter on both my test SSD (runs vanilla Leap 15.3
without AMDGPU-PRO drivers) and my main m.2 (runs Leap 15.3 with AMDGPU-PRO
drivers) and still the same results I am afraid.