Hey everyone, I'm new here (these forums), that is why this is being posted in this section.
I'm using Ubuntu 11.04 with an AMD/ATI Radeon 6990 (soon to be 2 6990s). I use poclbm with Catalyst version 11.8 and AMD APP SDK version 2.5. I'm using Gnome and Compiz as my desktop & window manager.
My problem is: Whenever I mine with both cores at the same time, my OS locks up and I have to hard reset. My OS also locks up if I leave a single core mining for a period of time. I get about 10 seconds of mining time on both cores before it freezes (I do get shares on both cores during this time), and up to 30 seconds or a minute with just one core running.
How I invoke poclbm (through a shell script):
echo "#started 1#"
export DISPLAY=:0
echo "changing directories..."
cd /home/teal/phoenix/python-jsonrpc/poclbm
./poclbm.py http://USER_NAME:PASSWORD@deepbit.net:8332 -v -w 128 -f 10 -d 1
I have to use the line "export DISPLAY=:0" for poclbm to see both GPU cores (aticonfig can see both). I use a much higher frame (-f) parameter for adapter "0" to leave resources for running my display.
I hope someone has some advice for me as I've exhausted my own means to solve this. I'm happy to provide any more relative information. I will be back from work at 8:30 (EST), any help would be appreciated.
have you tried disabling compiz for testing? compiz goes kind of deep into the lower layers of the system, and it's known not to be best when it comes to compatibility with AMD drivers.
you could also check /var/log/Xorg.0.log when rebooting after a freeze. it will contain some information about why X died(and took the machine with it). If it's not X, then it's most likely the kernel. tail /var/log/dmesg.0 after rebooting the machine should show you why.(eg if it's a temp problem, it'll be stated at the end of this file)
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