Working solutions:
pci=noacpi.........worst
Or
idle=nomwait iommu=pt amd_iommu=on rcu_nocbs=0-3 pcie-aspm=off ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2 amdgpu.dc=1 ...................medium
splash (erase quiet) ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2 clocksource=hpet iommu=on amd_iommu=on amdgpu.dc=1 ...................best
Working solutions:
pci=noacpi. ....... .worst
Or
idle=nomwait 4]=00:14. 0 5]=00:00. 2 ....... .....medium
iommu=pt
amd_iommu=on
rcu_nocbs=0-3
pcie-aspm=off
ivrs_ioapic[
ivrs_ioapic[
amdgpu.dc=1
.......
Or
splash (erase quiet) 4]=00:14. 0 5]=00:00. 2 ....... .....best
ivrs_ioapic[
ivrs_ioapic[
clocksource=hpet
iommu=on
amd_iommu=on
amdgpu.dc=1
.......