Comment 285 for bug 1776563

Hi all, I decided to try "ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=0:00.2" and it actually worked for me. It is possible that I am a complete idiot and misspelled it 5 times in a row before, but I could have sworn it did nothing before. Now suspend and brightness keys work..:

k@k-Aspire-A315-41:~$ journalctl -b | grep AMD-Vi
Dec 13 21:57:49 k-Aspire-A315-41 kernel: AMD-Vi: IOMMU performance counters supported
Dec 13 21:57:49 k-Aspire-A315-41 kernel: AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40
Dec 13 21:57:49 k-Aspire-A315-41 kernel: AMD-Vi: Extended features (0x4f77ef22294ada):
Dec 13 21:57:49 k-Aspire-A315-41 kernel: AMD-Vi: Interrupt remapping enabled
Dec 13 21:57:49 k-Aspire-A315-41 kernel: AMD-Vi: virtual APIC enabled
Dec 13 21:57:49 k-Aspire-A315-41 kernel: AMD-Vi: Lazy IO/TLB flushing enabled

However it the sensors are still not working:
(this is exactly the same as before)
k@k-Aspire-A315-41:~$ sensors
amdgpu-pci-0300
Adapter: PCI adapter
fan1: N/A
temp1: +0.0°C (crit = +0.0°C, hyst = +0.0°C)

k10temp-pci-00c3
Adapter: PCI adapter
temp1: +44.2°C (high = +70.0°C)

I am still running Ubuntu 18.04 with the oldest bios. Full model is A315-41-R88G
dmesg: https://paste.ubuntu.com/p/vmPdsQSRt4/
lspci: https://paste.ubuntu.com/p/g5NPcBhFpw/