Note: Only issue while booting form mounted ISO instead of Boot-USB. [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find connector for link!
Brief summary of the problem:
Try to boot up any distro you downloaded using (as far as I have tested) Linux Kernel 5.4 or 5.8
-> Get a blackscreen right after bootloader menu (right when attempting to boot the GUI)
-> or at best get a log displayed and get: [drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find connector for link!
Hardware description:
- CPU: AMD RYZEN 7 4700U
- GPU: VEGA 7 RENOIR
- System Memory: 16 GB
- Display(s): INTERNAL
- Type of Diplay Connection: INTERNAL
System information:
- Distro name and Version: Tested with Ubuntu 20.04, Ubuntu 20.10, PopOS 20.10, PopOS 20.04, Elementary OS 6 Open Beta
- Kernel version: 5.4, 5.8
- Custom kernel: /
- AMD package version: No package, preinstalled kernel module
How to reproduce the issue:
- Buy a Notebook with AMD Ryzen 7 4700U APU and no seperate GPU.
- Download any Distros ISO file that uses 5.4 or 5.8 Kernel.
- Mount the ISO on any device able to do so.
- Boot the mounted ISO from a boot menu
- Let it attempt to boot into the usual installation GUI of the respective Distro
Attached files:
Scratched this. The Log I had access too stated nothing but standard info and 3 or 4 times:
[drm:dm_helpers_dp_write_dpcd [amdgpu]] *ERROR* Failed to find connector for link!