Hello, I don't know where and how to report amdgpu bugs as the freedesktop.org bugzilla is closed... My problem: With kernel 5.10.x, both the internal notebook display and any external screen become black (or go to the "off" state?) when the kernel boots (one or two seconds after the VGA text console is shown), and the system no longer reacts. 5.9.x is fine. This seems to happen as soon as the amdgpu kernel driver loads/initializes, even in pure text mode (VGA console or framebuffer), without starting X. Dell Precision notebook with AMD Radeon (TM) Pro WX 3200 Series (POLARIS12, DRM 3.39.0, 5.9.15-gentoo, LLVM 11.0.0) (0x6981) Tried all combinations of DC/non-DC, FB/non-FB kernel configurations (even happens when configuring Amdgpu without framebuffer!). Many thanks for any help! -- Prof. Dr. Klaus Kusche Private address: Rosenberg 41, 07546 Gera, Germany +49 365 20413058 klaus.kusche@xxxxxxxxxxxxxxx https://www.computerix.info Office address: DHGE Gera, Weg der Freundschaft 4, 07546 Gera, Germany +49 365 4341 306 klaus.kusche@xxxxxxx https://www.dhge.de _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx