Quote from: woodl1 on October 12, 2017, 02:00:27 PM

Quote from: woodl1 on October 09, 2017, 08:57:46 PM

Quote from: fullzero on October 07, 2017, 08:49:03 PM

Quote from: TheNewEthlite on October 06, 2017, 05:38:41 PM

First all, Thank you very much for the awesome work you do!!

So,

Tried to put the DAG fix using the following:

#Install new ROCm Kernel:

wget -qO - http://repo.radeon.com/rocm/apt/debian/rocm.gpg.key | sudo apt-key add -
sudo sh -c 'echo deb [arch=amd64] http://repo.radeon.com/rocm/apt/debian/ xenial main > /etc/apt/sources.list.d/rocm.list'
sudo apt-get update
sudo apt-get install rocm

#edit grub
sudo nano /etc/default/grub
#2MB fragments for Ellesmere are enabled with a grub option:
GRUB_CMDLINE_LINUX="amdgpu.vm_fragment_size=9"

sudo update-grub
sudo reboot

The problem is the first GPU will now do about half speed while the other GPU's are running properly faster. Tried multiple times, different gpu's, etc, same results.

I know it's being updated in V13, anybody have a clue how to fix this first GPU problem in the meantime? I've just reverted back to untouched V12.

If anyone cares, my 580's run at about 25(no oc), with dag fix 27, but the first gpu will run at 14, would be nice to get them all to 27.

What happens if you run headless? Is the first GPU still nerfed?

I did the same to apply dagfix, with the same effect on the GPU0, tried to run it headless and yes, it is the same slow without monitor attached. By the way I had the same problem with nvOC headless P106 rigs, and it was easily solved by reconfiguring xorg with nvidia tool when no monitor attached. Maybe reconfiguration is the right way here too, but I don't know how to do it with RX cards.

Issue with slow GPU0 solved by setting it's PCIe slot to Gen2 in BIOS. I had Gen1 for all slots before.

Good to know. I have a way of jamming the system to patch this: but if setting gen2 works it is the much better solution.