Quote from: bbOOmm on October 15, 2016, 09:41:02 PM

I'm mining ETH-HF on Dwarfpoof after a few weeks of down-time due to a cooked motherboard. Now that I'm back up and running with a fresh install of Ubuntu 15.04, I've been noticing that I'm getting a lot of "GPU gave incorrect result", "cannot connect" and a few other errors while mining. I've also noticed that even though I have FARM-RECHECK 300 in the command, which in the past led to each "hashing line" displayed on the monitor being displayed every .3 seconds or so at a very steady rate, now its a very ragged rate of .7 to 1.0 second, sometimes as slow as 6-7 seconds

My ethminer command is as follows:

Code:

ethminer --farm-recheck 300 -G -t 4 -F eth-us.dwarfpool.com:80/0x1400xxxxxxxxxxxxxxxxxxx08eB7829C --cl-local-work 256 --cl-global-work 16896

are these issues because of the attacks on the network?

Or would it be the motherboard/processor being too slow ( Pentium Dual Core 3GHz with 4GB RAM , 2- R9 295X2 cards, Ubuntu 15.04 Desktop )

OR maybe I have something misconfigured?

Also, For some reason, I can mine using both cards, but trying to overclock using aticonfig or even checking the temperature of each of the 4 GPU cores, I can only control and/or access the temperature of the "default" GPU. The other 3 GPUs are inaccessible with the aticonfig command. Now this is a misconfiguration of something because the previous installation of ubuntu 15.04 mined just fine and I have full control over all the GPUs. ( That old installation was all kinds of mucked up with Monero and other coin mining junk - the reason for re-installing from scratch)

FYI - I followed this guide with an exception of using thelatest APP and Display Library downloaded from AMD, not the older stuff noted in the guide.

http://forum.ethereum.org/discussion/2695/frontier-mining-setup-notes-ubuntu-15-04-geth-v1-0-amd-ethminer

Any pointers to get this sorted out would be helpful

Thanks

Well .... this ethereum miner became unresponsive, so I rebooted it, Updates to ubuntu and whatnot were available so I did sudo update / upgrade / dist-upgrade, along with cleaning up the system with sudo clean / autoclean / purge / autoremove ..... then I rebooted the system and started mining again.... now I can use aticonfig and use overdrive commands. The system fixed itself after quite a long spell of not being able to tweak the GPUs.

So that problem is fixed.

I'm still getting frequent "GPU gave incorrect result" errors and the mining/hashing displayed is still displaying at a ragged rate, not a smooth consistent rate. What spooks me the most when mining is I think the system froze from time to time... It'll be hashing and displaying the output every .6-.7 seconds -- even though I have the FARM RECHECK set at 300 , but then it seems like ethminer gets stuck when a result is found and its hangs for 7-15 seconds before displaying that a result was found etc.

Anyone have any input on how to smooth out this mining.... IE optimize the display output / hanging issue? I'm sure this is hurting my hashrate.

Thanks