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Topic: R9 290 considerably less KH under xubuntu than win7 [DOGE bounty] (Read 1175 times)

member
Activity: 112
Merit: 10
I recommend you start on a complete new xubuntu.

First of all, install AMD catalyst drivers
sudo apt-get install fglrx-updates fglrx-amdcccle-updates fglrx-updates-dev
sudo aticonfig --lsa
sudo aticonfig --adapter=all --initial
sudo reboot

After your computer reboots, you can verify that everything worked by typing:

sudo aticonfig --adapter=all --odgt

You should see your GPU now.
Before you run cgminer you have to run:
export DISPLAY=:0
export GPU_MAX_ALLOC_PERCENT=100
export GPU_USE_SYNC_OBJECTS=1

Now just run cgminer and check if you can reach your desired khash.
You might also test a different Intensity than 20 and also keep track of your HW.
newbie
Activity: 14
Merit: 0
just read through the instructions, gonna try it tomorrow
member
Activity: 114
Merit: 10
BTC collector
Did you try proprietary drivers?
Never used Ubuntu with an amd gpu. Performance of my nvidia increased with the proprietary drivers installed (over a year ago)
newbie
Activity: 14
Merit: 0
25k DOGE bounty added for the first who can solve the puzzle.

- I would change OS but not to win
- Guide appreciated if it is not something "dumb" i missed

bounty placed at DFANdVqnBMtoToNJVsduYyP2dAQdP69zmK
newbie
Activity: 14
Merit: 0
Hi bitcointalk folks

I hope someone of you can point me in the right direction as to why my cards (R9 290) perform worse under xubuntu 12 than under win7.

Under win7 I get 850-900kh, there I installed catalyst and sdk and thats about it.
Under xubuntu 12 I cant manage to get past 700kh no matter if I take the same config like under win7 or if I tweak the hell out of it.
The installation procedure I did can be found here http://litecoinsblog.com/installing-radeon-r9-290-gpu-drivers-in-xubuntu-64bit/.

As you see no SDK in this guide mentioned ... well I gave it a try anyway after the low hash rate was killing my mood so I installed http://developer.amd.com/tools-and-sdks/heterogeneous-computing/amd-accelerated-parallel-processing-app-sdk/downloads/.
Result was that cgminer couldnt find any of my cards from that point on. Reinstalled catalyst etc nothing seemed to help, got creepy errors and stuff after which i reinstalled xubuntu from the bottom up.

My question is has anybody managed to reach 800-900kh under xubuntu and if so what were the steps? SDK yay, nay? I'm pretty sure its not the cgminer parameters for I have tried a lot (eg http://rumorscity.com/2013/12/03/litecoin-gpu-mining-with-amd-r9-290-and-r9-290x-sweet-spot-for-1000khashsec/) while on the win7 machine i just put -I 20 and all runs smoothly.

Greetings
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