Since yesterday, my computer won't boot on ubuntu. I did some system updates and tried to install a software (vscodium via .deb file), apt failed giving me a message about my cpu (don't remember exactly what) so I restarted my computer, or at least tried to restart it.
Windows 10 (dual boot) is working fine.
I downloaded ubuntu 19.04 to boot on liveusb but it won't boot either.
While trying to boot I encounter AMD-VI: Completion-Wait loop timed out
message along with iommu ivhd0 IOTLB_INV_TIMEOUT or something.
I already had issues installing ubuntu and upgrade linux kernel but managed to workaround with iommu=soft stuff (Impossible to install Ubuntu 18.04 on a new computer). I didn't have any issues for several months so I thought it was behind me.
Computer specs :
- Motherboard: b350 PC MATE
- CPU: Ryzen 5 2600X
- GPU: radeon RX 570
- Ubuntu 18.04.2
At this point I really don't know what to do... I can't even launch recovery mode.
Bios is up-to-date
I managed to access my terminal, update-grub didn't help, but when I typed sudo apt update I had E: Error reading the CPU table. /usr/share/dpkg/cputable was missing, I copied a version of the file I found in /snap/core18/941/usr/share/dpkg/cputable and now I have E: Cannot find dpkg tuplet or triplet table
