Thanks for the reply. I solved this issue by follow the instructions on this website.
https://linuxconfig.org/how-to-install-the-latest-amd-drivers-on-debian-10-buster On 10.07.19 09:49, Felix Miata wrote: > Esteban L composed on 2019-07-10 09:23 (UTC+0200): > >> I installed Debian, but it boots to a blinking _ , otherwise dark screen. >> Best I can figure, I need the microcode firmware update for the system, >> since I saw a mention of that on the text (it was the first line, so >> hard to miss). >> What steps do I need to do to get my video to work? I will try safe mode >> next, I guess, see if that does anything. > Usually you can append nomodeset to the end of the linux line in the Grub menu > (via the E key to edit at runtime). It may or may not produce much difference > compared to safe mode. Nomodeset is typically only for making repair > operations > possible. While using it, if X works at all, it will be slow and use a > suboptimal > video mode. 'sudo apt install firmware-amdgpu' may be all you need to do > during a > rescue boot in order to get competent video from your Radeon on next restart.