I guess I'll be the one to start this thread.

More than 2 weeks ago, Nicksasa, the notroll.in pool operator, introduced a bug on his pool that caused some miners to be double-paid for a short period. Rather than correct the issue by identifying exactly who was double-paid and correcting only the balances that were erroneous, Nicksasa decided to instead simply take a flat ~30% from the overall balance of every single user in his pool, whether they were actually mining during the double-payment period or not.

Obviously, this resulted in quite a few people having ridiculous sums of litecoins essentially stolen from their accounts. There are several people on this board claiming losses into the hundreds of litecoins, when they were either not mining at all during the double-payment period, or only mined a small handful of ltc (one user claimed that he mines 5 ltc/day but Nicksasa took 118 ltc from him, for example). I will link the actual thread below. I have a friend that had just over 10 litecoins taken from her account (weeks worth of mining for her!) when she wasn't mining at all during the double-payment period.

On April 10th, Nicksasa finally responded to users, admitting that he did indeed just take a flat percentage from everyone to cover his own mistake. He said that it was true that some people had more taken from them than was fair. He said that he would be putting up a page on his site so that people could submit claims to be reimbursed:

https://bitcointalk.org/index.php?topic=92716.msg1797285#msg1797285

All of that was 2 weeks ago. No page has been put up. Nobody (to my knowledge) has been reimbursed. Nicksasa has stopped communicating on this board, although you can check his profile to see that he is still lurking. There are no messages on notroll.in at all about the incident.

Meanwhile, the notroll.in thread continues to fill up with more accusations of shares not being counted, payouts not working, and other shady stuff. It looks like Nicksasa is content to simply let his pool die a slow death while milking it for as much as he can while the people that don't know about this continue to mine there.

Please give this guy a "scammer" tag so at least the people that see his threads will immediately see that he shouldn't be trusted without having to read through 40+ pages of information.

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Hello,

I just spent the last 8 hours trying to get cgminer running properly on a box running Xubuntu with two MSI Radeon 7950 cards running in it.

The issue is that I'm getting extremely low hashrates compared to running the card in windows with the same settings. Cgminer is reporting that one of the cards is heavily underclocked (300mhz core, 150mhz memory vs the expected 880mhz core and 1250mhz memory of a stock MSI 7950), and I'm unable to make core/memory speed changes to that card via cgminer (this card is cold to the touch with cgminer running). The other card responds to core/memory speed changes properly. Even the card that is clocked properly is giving pathetic hashrates vs what I see in windows with the same cgminer settings (~580 kH/sec at stock clock speeds).

Image:



Details:

- I followed the basic instructions here for installing Xubuntu, installing drivers and installing cgminer: http://tehgentoonoob.blogspot.com/2012/09/headless-mining-rig-with-xubuntu-1204.html. Only real difference is I'm running Xubuntu 12.10 instead of 12.04, and using the latest version of cgminer (2.11.4). I didn't see any weirdness during setup, everything seemed to go as expected.

- Hardware consists of ASRock 970 Extreme4 mobo, AMD Sempron CPU, 8GB RAM, Seasonic 860w platinum PSU, and 2x MSI 7950 GPUs. Xubuntu is running off a 8GB Patriot USB stick.

- My cgminer startup script looks like this (parameters passed to cgminer are the same as what I use in Windows with much better results):

      #!/bin/sh   
      export DISPLAY=:0
      export GPU_MAX_ALLOC_PERCENT=100
      export GPU_USE_SYNC_OBJECTS=1
      cd /home/[myHomeDirectory]/cgminer-2.11.4-x86_64-built
      ./cgminer --scrypt -I 19 -g 1 -w 256 --thread-concurrency 21712 --auto-fan -o stratum+tcp://notroll.in:3333 -u [myusername] -p [mypassword] --failover-only -o stratum+tcp://coinotron.com:3334 -u [myusername] -p [mypassword]


I am not that experienced in linux, and would welcome any help/ideas that anyone has in troubleshooting.This is driving me crazy.

Thanks in advance!