amdconfig --odgt --adapter=all only returns temp for adapter=0, but gives the above error for any and all other GPUs. lspci | grep VGA correctly identifies all cards. I'm on Ubuntu 14.04, on fresh install of latest AMD crimson drivers with no other apparent issues. And yes, I did do amdconfig --initial -f --adapter=all at the conclusion of my driver install of crimson drivers (Newly installed catalyst drivers (15.30.1025-x86.x86_64), on Ubuntu 14.04.3. I have encountered the same problem on three different machines/installations, and in fact various other --od commands encounter the same problem. Would appreciate any help. Thanks.