I have just tried to do a bit of GPU mining on cgminer with an AMD graphics card. I have installed the required hardware and I can connect to the pool fine. The only issue I am having is that no shares are being accepted due to low difficulty, I have spent hours researching trying to find the issue with no success. Please help!
Here is my .bat:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://stratum.bitcoin.cz:3333 -u zoormagoodness.two -p ss -I 14 -g 1 -w 256 --thread-concurrency 10240 --temp-target 55 --temp-overheat 65 --temp-cutoff 75 2>logfile.txt
pause
Here is a log of what is happening:
[2015-09-27 13:47:31] Started cgminer 3.7.2
[2015-09-27 13:47:32] Probing for an alive pool
[2015-09-27 13:47:33] Pool 0 difficulty changed to 256
[2015-09-27 13:47:34] Network diff set to 59.3G
[2015-09-27 13:48:07] Pool 0 difficulty changed to 51
[2015-09-27 13:48:07] Stratum from pool 0 requested work restart
[2015-09-27 13:48:11] Rejected 02d5f4f8 Diff 90/51 GPU 0 (Too low difficulty)
[2015-09-27 13:48:19] Rejected 019b114b Diff 159/51 GPU 0 (Too low difficulty)
[2015-09-27 13:48:22] Rejected 04c152b2 Diff 54/51 GPU 0 (Too low difficulty)
[2015-09-27 13:48:42] Rejected 03259bbd Diff 81/51 GPU 0 (Too low difficulty)
[2015-09-27 13:48:44] Rejected 02d0efcf Diff 91/51 GPU 0 (Too low difficulty)
[2015-09-27 13:48:45] Shutdown signal received.
[2015-09-27 13:48:46]
Summary of runtime statistics:
[2015-09-27 13:48:46] Started at [2015-09-27 13:47:34]
[2015-09-27 13:48:46] Pool: stratum+tcp://stratum.bitcoin.cz:3333
[2015-09-27 13:48:46] Runtime: 0 hrs : 1 mins : 12 secs
[2015-09-27 13:48:46] Average hashrate: 407.8 Kilohash/s
[2015-09-27 13:48:46] Solved blocks: 0
[2015-09-27 13:48:46] Best share difficulty: 159
[2015-09-27 13:48:46] Share submissions: 5
[2015-09-27 13:48:46] Accepted shares: 0
[2015-09-27 13:48:46] Rejected shares: 5
[2015-09-27 13:48:46] Accepted difficulty shares: 0
[2015-09-27 13:48:46] Rejected difficulty shares: 255
[2015-09-27 13:48:46] Reject ratio: 100.0%
[2015-09-27 13:48:46] Hardware errors: 52
[2015-09-27 13:48:46] Utility (accepted shares / min): 0.00/min
[2015-09-27 13:48:46] Work Utility (diff1 shares solved / min): 286.53/min
[2015-09-27 13:48:46] Stale submissions discarded due to new blocks: 0
[2015-09-27 13:48:46] Unable to get work from server occasions: 0
[2015-09-27 13:48:46] Work items generated locally: 13
[2015-09-27 13:48:46] Submitting work remotely delay occasions: 0
[2015-09-27 13:48:46] New blocks detected on network: 1
[2015-09-27 13:48:46] Summary of per device statistics:
[2015-09-27 13:48:46] GPU0 | (5s):407.3K (avg):407.8Kh/s | A:0 R:255 HW:52 WU:286.5/m
[2015-09-27 13:48:46]
[2015-09-27 13:48:46] Stratum connection to pool 0 interrupted
[2015-09-27 13:48:46] Pool 0 stratum+tcp://stratum.bitcoin.cz:3333 not responding!
Any help would be appreciated!