Hi,
Did clean install with USB stick with Generic LibreELEC-Generic.x86_64-11.0.3.img.gz , install went fine but after first boot screen stay black, no LibreELEC splash screen seen either.
Tried Legacy Generic PC (for older PCs and NVIDIA GPUs) version and that installed fine and after reboot system works as expected.
Found out that GBM version would support HDR possibly, any ideas why getting black screen after boot? Cannot get logs as SSH is not yet active. Anyway to change resolution/refresh rate from keyboard? I think LE boots fine, but display is somehow messed up with Ryzen Vega integrated GPU.