Re: clDevicesNum returned error, no GPUs usable (Sgminer, Linux)

Make a script to launch your miner:

Code:

#!/bin/bash

export DISPLAY=:0
export GPU_USE_SYNC_OBJECTS=1
export GPU_MAX_ALLOC_PERCENT=100

sgminer -n

Also make sure the drivers are installed correctly and system detects all the gpus. You can verify that by running:

Code:

DISPLAY=:0 aticonfig --odgt --adapter=all

Code:

clinfo