Ubuntu 24.04 - Unable to change power state from D3cold to D0, device inaccessible

This was fixed by upgrading to kernel 6.8.4-060804-generic

(promox users had reported the need to downgrade to this kernel - seems drivers are suer sensitive to kernel versions)

Commands i used to downgrade

wget https://raw.githubusercontent.com/pimlie/ubuntu-mainline-kernel.sh/master/ubuntu-mainline-kernel.sh

chmod +x ubuntu-mainline-kernel.sh

sudo ./ubuntu-mainline-kernel.sh -i v6.8.4

sudo reboot now