proxmox

Proxmox 9's AppArmor 4.1 upgrade broke Intel QuickSync monitoring in unprivileged LXC containers. The workarounds require such significant security compromises that privileged containers are arguably the only realistic option now.

A simple but effective way to "fix" things is to disable apparmor, here's how.

Since fairly recently my Proxmox install has shown an almost barf inducing amount of errors along the lines of edid block 0 is all zeroes or kernel EDID has corrupt header. The issue is present on at least Promox 8.1.5 running kernel Linux 6.5.13-3-pve. Thanks for the fix goes to a couple of threads here and here. Some folks suggested disabling AST graphics, or blacklisting the i915 driver - this had no effect on my ASRock Rack E3C246D4U motherboard with i5 8500 CPU. This is a vanilla install