Title: Ubuntu 11.04 && SDK2.3 && Catalyst .3 Problems to run more then 1GPU Post by: xmasterpx on June 12, 2011, 06:39:38 PM Hi,
i am running a mining rig a couple of days on windows7. But on windows i have the problem with the "dummy plug". So i switched to ubuntu today. first it seems to run smothly after starting the first miner. The first GPU was running about 380MHs I started the 2nd GPU and suddenly the first GPU runs only at 150Mhs and the second GPU @100mhs At the first moment i thought that i set the wrong devices but no. GPU1 runs @ d0 GPU2 @d3 if i start the other 3 GPU's they slow down more and more. Any Ideas? Here some technical facts: Code: Adapter 0 - AMD Radeon HD 6990 You can see that GPU1 and GPU4 are running. Code: fglrxinfo CPU runs @100% I hve tried poclbm, phoenix/phatk Crossfire is switched Off. It is the same like in this topic: http://forum.bitcoin.org/index.php?topic=3359.msg160724#msg160724 but cant write there. :/ Thank you for any feedback. Title: Re: Ubuntu 11.04 && SDK2.3 && Catalyst .3 Problems to run more then 1GPU Post by: rainman on June 12, 2011, 07:46:49 PM I don't know of this will help, but I had some problems installing 3 6970's on Ubuntu 11.04 64 bit. I got one card running just fine, but the minute I physically added a second or a third I was having problems booting up to the GUI login.
Anyways, I was able to boot up in safe mode or recovery mode or whatever its called (hold down shift during bootup to get the menu) and once back in, I reran the aticonfig sudo aticonfig --initial -f --adapter=all rebooted, and all was well. Not exactly the same problem you are having, but maybe its worth a shot. Title: Re: Ubuntu 11.04 && SDK2.3 && Catalyst .3 Problems to run more then 1GPU Post by: xmasterpx on June 12, 2011, 08:37:11 PM Hi,
Thank you. I tried that. But does not help. I will start Win7 tonight again. Maybe i hve some luck tomorrow with ubuntu or someone can explain whats going on. cheers Title: Re: Ubuntu 11.04 && SDK2.3 && Catalyst .3 Problems to run more then 1GPU Post by: xmasterpx on June 13, 2011, 03:44:19 PM Hi,
its working now: Ubuntu 11.04 SDK 2.4 Drivers 11.5 1,8GHashs are running and running and running. |