I've been able to stop the freezing with the -mode 1-0 command. It appears that this 290x2 is flying at half-mast and that that is the real problem. It's reporting gpu0 at 8.8 Mh and gpu1 at 17 Mh, which is about half of its capabilities. The others are OK.
Greetings,
I am trying to resolve a system-hanging-requiring-reboot issue, the ETH/SIA mining runs fine for a minute or so, then does the GPU hangs in OpenCL call thing. These are stock video cards with no overclocking, Claymore 5.1, Beta 2. Ubuntu 15.10. It runs fine with ethminer, and has 8Gb. I saw a previous answer to this type of problem to be add memory, but that doesn't seem to me to be the problem. The shown hash rate isn't the problem, I have adjusted the SIA intensity up and down. Thanks much in advance for any insight.
GPU #0 recognized as Radeon 280X/380X
GPU #1 recognized as Radeon 280X/380X
GPU #2 recognized as Radeon 390
GPU #3 recognized as Radeon 290X
GPU #4 recognized as Radeon 290X
ETH - Total Speed: 41.449 Mh/s, Total Shares: 1, Rejected: 0, Time: 00:01
ETH: GPU0 5.401 Mh/s, GPU1 0.000 Mh/s, GPU2 13.438 Mh/s, GPU3 11.316 Mh/s, GPU4 11.294 Mh/s
SC - Total Speed: 2486.920 Mh/s, Total Shares: 4, Rejected: 0
SC: GPU0 324.062 Mh/s, GPU1 0.000 Mh/s, GPU2 806.296 Mh/s, GPU3 678.943 Mh/s, GPU4 677.619 Mh/s
WATCHDOG: GPU 1 hangs in OpenCL call, exit
WATCHDOG: GPU 1 hangs in OpenCL call, exit
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� Claymore's Dual ETH + DCR/SC AMD GPU Miner v5.1 Beta �
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ETH: 1 pool is specified
Main Ethereum pool is us-east1.nanopool.org:9999
SC: 1 pool is specified
Main Siacoin pool is sia-us-east1.nanopool.org:9980