https://bugs.freedesktop.org/show_bug.cgi?id=91880
--- Comment #210 from emilio.moretti@gmail.com --- (In reply to Sandeep from comment #209)
Created attachment 141193 [details] attachment-13440-0.html
Try removing the amdgpu.dc=1 kernel parameter. Might be causing problems. If not, then it's a bug in the driver.
THANK YOU
Now it works. Looks like the DC code was causing troubles.
This is my current configuration for grub GRUB_CMDLINE_LINUX_DEFAULT="radeon.cik_support=0 amdgpu.cik_support=1 amdgpu.modeset=1 amdgpu.dc=0 amdgpu.dpm=1" I'm on kernel 4.18.3.
I left the PC running for hours and it didn't freeze. This was simply impossible before the new changes.
I also tried reducing the monitor shutdown to 1 minute, and it worked every single time I left it idle.
I think that I can finally confirm I'm no longer able to reproduce this bug, after 2 and a half years of using this card, and trying new kernels once a month.