BLACK SCREEN RADEON RX570 fail to initialise GPU passtrough all linux in Hypervisor PROXMOX

Submitted by Patrick

Assigned to Default DRI bug account

Link to original bug (#110704)

Description

Hi,
Since one year I wait the correction of this BUG.
My Radeon Rx570 fail to initialise all linux (Fedora, OpensuseTembleWeed, Manjaro, Ubuntu, Debian, PhoenixOs, Mint, Bliss and Kubuntu) witn GPU Passtrough in PROXMOX.
Windows10 work wonderfull, Androidx86_64-8.1-r1 work without sound et I have only Linux Mint 19 work wonderfull with kernel linux-image-4.15.0.33 after apt-get upgrade the GPU PASSTROUGH fail again.
GPUPASSTROUGT with KUBUNTU work only the first time after fresh installation.

When i set modeset=0 the Gpu is initialise with bad performance.

Thank you for your help.

Patrick