https://bugzilla.kernel.org/show_bug.cgi?id=212959
Bug ID: 212959 Summary: [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find connector for link! Product: Drivers Version: 2.5 Kernel Version: 5.4, 5.8 Hardware: Other OS: Linux Tree: Mainline Status: NEW Severity: blocking Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: tob88570@gmail.com Regression: No
This error occurs on all distros based on Ubuntu 20.04 with Linux Kernel 5.4 as well as Kernel 5.8, that attempt to load a GUI, upon booting from a mounted iso into said Operating Systems installations.
This error occurs at least for AMD RYZEN 7 4700U Apus with AMD VEGA 7 RENOIR graphics.