Download URL: https://www.aspeedtech.com/support_driver/
run "uname -r" to get the kernel version
disable "secure boot" in BIOS option
select proper deb and run "dpkg -i ast-drm-linux4.15.deb" for example
if it is failed due to dependency issue
run "apt-get -f install" and try again
reboot
Contact Window: aspeed_vga_support@aspeedtech.com