Hi Alex, > You need to use dc to support 4k@60. Remove amdgpu.dc=0 from the kernel command line in grub. Thanks a lot! Indeed, it worked immediatly after removing those left-overs from my kaveri-based system. Br, Clemens _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx