For #44 Aaron's suggested patch, it seems patch have been included after 4.15.0-46. The testing 18.04.2 iso with 4.15.0-48 kernel seems the system would be hang on language selection after select install server of grub screen. So it seems this hibmc_drm would caused another this hang issues too.
This hibmc_drm driver can only work for ARM64, as I know, chip vendors don't have any intend/interesting to make this drm/kernel driver to work for x86. For x86, it must use the existing driver which was based Xorg.
For #44 Aaron's suggested patch, it seems patch have been included after 4.15.0-46. The testing 18.04.2 iso with 4.15.0-48 kernel seems the system would be hang on language selection after select install server of grub screen. So it seems this hibmc_drm would caused another this hang issues too.
This hibmc_drm driver can only work for ARM64, as I know, chip vendors don't have any intend/interesting to make this drm/kernel driver to work for x86. For x86, it must use the existing driver which was based Xorg.