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Title: Unable to detect more than 1 GPU in Ubuntu 12.04 Post by: Vigil on May 16, 2013, 11:59:41 PM So I had three of my 7950 cards running in Windows and one 7950 in Ubuntu but finally consolidated them to a dedicated Ubuntu 12,04 platform so I could get my main system back. However, I am unable to get more than one GPU detected and running in CGminer. I have followed all instructions at this site:
http://decryption.wordpress.com/2013/04/22/mining-litecoin-with-cgminer-ubuntu-12-10/ I have also substituted the AMD-SDK 2.7 for 2.8 and used 12.8 drivers instead of 13.1. Still doesn't work. I though maybe I needed the dummy monitors for the GPUs so I tried hooking up a monitor to one of the other GPUs, still only detects one. Any suggestions would be appreciated. Title: Re: Unable to detect more than 1 GPU in Ubuntu 12.04 Post by: Vigil on May 17, 2013, 02:23:12 AM I think maybe my CFLAGS aren't set correctly...
Here is what I set it to: Code: CFLAGS="-O2 -Wall -march=native -I /opt/AMDAPP/include/" And it isn't reflected after the ./configure Quote Compilation............: make (or gmake) CPPFLAGS.............: CFLAGS...............: -g -O2 LDFLAGS..............: -lpthread LDADD................: -ldl -lcurl compat/jansson/libjansson.a -lpthread -L/opt/AMDAPP/lib/x86_64 -lOpenCL -lm Installation...........: make install (as root if needed, with 'su' or 'sudo') prefix...............: /usr/local Title: Re: Unable to detect more than 1 GPU in Ubuntu 12.04 Post by: -ck on May 17, 2013, 10:33:05 AM Reconfigure xorg to use more GPUs
Code: sudo aticonfig -f --adapter=all --initial Title: Re: Unable to detect more than 1 GPU in Ubuntu 12.04 Post by: kxxxmxxx on May 17, 2013, 05:08:31 PM have similar problem, but I also have same problem under Windows.
will try the suggestions, thanks Title: Re: Unable to detect more than 1 GPU in Ubuntu 12.04 Post by: Vigil on May 17, 2013, 08:47:15 PM Reconfigure xorg to use more GPUs Code: sudo aticonfig -f --adapter=all --initial Thanks... but I've tried - Ati recognizes cards but CGMiner does not: Code: ~$ aticonfig --lsa Here is the CGMiner configuration: Code: ./cgminer -n Title: Re: Unable to detect more than 1 GPU in Ubuntu 12.04 Post by: -ck on May 17, 2013, 10:39:58 PM GPU-README
Title: Re: Unable to detect more than 1 GPU in Ubuntu 12.04 Post by: Vigil on May 17, 2013, 11:36:58 PM GPU-README Did it. I've tried this installation about 10 times now - literally. For whatever reason it isn't accepting the CFLAGS. Title: Re: Unable to detect more than 1 GPU in Ubuntu 12.04 Post by: -ck on May 17, 2013, 11:39:19 PM Did you export DISPLAY ?
Title: Re: Unable to detect more than 1 GPU in Ubuntu 12.04 Post by: Vigil on May 17, 2013, 11:40:34 PM Did you export DISPLAY ? Yep. export DISPLAY=:0 EIDT: I am going to try the 2.7 SDK again. |