I got this to work with amdgpu-pro by editing the files using gksudo and leafpad. For some reason echoing the command directly into the file gives permission errors (even as super user).
I have been running into one problem.
when running amdgpu_pm_info I can see the mclk MHz go up as I increase the variable in the pp_mclk_od file. However, I can only get it up to a certain level.
In my case, it seems like the upper limit is 20 (which ends up being 2100MHz).
My card is very stable at this level and I want to go further, but even if I put in 40 or 50 the MHz doesn’t increase over 2100.
Is there some limiting factor in this driver, and if so how do I disable it?
I know I can change the card’s BIOS, but this would be such a petter solution for my case if I could get it to increase as much as I want.