Thus said Allan Streib on Sun, 25 Nov 2018 21:54:45 -0500: > Same issue, also on a Dell machine with ATI Radeon HD 2400 XT.
After Jonathan suggested adding some printf debug statements, I continued to do so and was able to see that the rdev->bios variable that is being inspected at lines 834--840 in radeon_bios.c has neither ATOM nor MOTA in the string at that address for amd64, but has ATOM for i386: tmp = rdev->bios_header_start + 4; if (!memcmp(rdev->bios + tmp, "ATOM", 4) || !memcmp(rdev->bios + tmp, "MOTA", 4)) { rdev->is_atom_bios = true; } else { rdev->is_atom_bios = false; } I suppose additional debug might involve writing the entire contents of rdev->bios to a file and then hexdump it? Andy -- TAI64 timestamp: 400000005bfb8e86