Hello guys, i got my mining hardware this week and started setting it up, following the guide of Cryptobadger:
http://www.cryptobadger.com/2013/04/build-a-litecoin-mining-rig-linux/The only difference is, that im using a r9 280x Sapphire Dual GPU. Currently running solo. Because i want to test first before i add additional GPUs. Before switching to Xubuntu i used the GPU on my Windows 7 PC. It was running nicely with 780kh/s but on Linux only 600kh/s. =\
Used Hardware:
AMD SEMPRON
PCU LC-Power Silent Giant LC6550GP2 Green Power 550W
Scandisk 16 USB-Stick with Xubuntu v12.10
Dual-x r9 280x Sapphire GPU
Asrock 970 Extreme4
1x 4GB G.Skill 1600mHz Ram
Following the guide everything works nicely. Beside one error.
sudo aticonfig --adapter=all --odgt
got me ...
ERROR - X needs to be running to perform AMD Overdrive(TM) commands
... everything else works properly. Seems like the cgminer settings are not the problem for that, more likely something with the drivers or maybe 280x opimized kernels for cgminer.
cgminer settings are this:
./cgminer --scrypt -o pool:socket -u x -p x --lookup-gap 2 --thread-concurrency 8191 -g 2 -I 13 -w 256 --memclock 1550 --gpu-engine 1150 --gpu-vddc 1.090 --shaders 2047 --auto-fan
Im trying to fix this problem the whole week but nothing really helps just getting 620kh/s at maximum.
Im kind of a Linux noob, so be warned.
Cheers!