I can't find any help on the Internet for this problem. I'm trying to run sgminer with an AMD Radeon R9-280x GPU under Linux. When I run "sgminer -n", this is the output: Code: $ ./sgminer -n [20:42:48] CL Platform 0 vendor: Advanced Micro Devices, Inc. [20:42:48] CL Platform 0 name: AMD Accelerated Parallel Processing [20:42:48] CL Platform 0 version: OpenCL 1.2 AMD-APP (1214.3) [20:42:48] Error -1: Getting Device IDs (num) [20:42:48] clDevicesNum returned error, no GPUs usable [20:42:48] 0 GPU devices max detected My computer detects the GPU fine, just not sgminer: Code: $ sudo aticonfig --lsa * 0. 02:00.0 AMD Radeon R9 200 Series * - Default adapter I've run this: (and rebooted): Code: "sudo aticonfig --adapter=all --initial I've tried running these commands before running "sgminer -n": Code: export DISPLAY=0 export GPU_MAX_ALLOC_PERCENT=100 export GPU_USE_SYNC_OBJECTS=1 I've also tried running this since my BIOS isn't set up for ACPI: Code: sudo aticonfig --acpi-services=off I've actually made a guide that works for my 7970, but it's not working with my 280x. The guide is here if you want to know exactly what I've done: https://darkcointalk.org/threads/ho...mine-darkcoin-under-linux-ubuntu-64-bit.1813/ I also tried installing lasybear's version of sgminer, but even with that one, the output of "sgminer -n" is still the same. I'm out of ideas here.