Comme=
nt # 208
on bug 91880<=
/a>
from emilio=
.moretti@gmail.com
(In reply to emilio.moretti from comment #207)
> (In reply to Sandeep from comment #206)
> > You've got to make sure that radeon and amdgpu drivers don't clas=
h.
> >=20
> > Try the following kernel parameters: radeon.si_support=3D0
> > radeon.cik_support=3D0 amdgpu.si_support=3D1 amdgpu.cik_support=
=3D1 amdgpu.dpm=3D1
> >=20
> > That's what I use and it works fine for me.
>=20
> Thanks, but I did that. Here is my process:
>=20
> Stable system configuration (power management doesn't crash):
> 1) Make sure amdgpu is blacklisted:
> # vim /etc/modprobe.d/blacklist.conf
> -> add "blacklist amdgpu" at the bottom
> # update-initramfs -u -k all
>=20
> 2) Update grub parameters:
> # vim /etc/default/grub
> -> Set the correct defaults:
> GRUB_CMDLINE_LINUX_DEFAULT=3D"radeon.cik_support=3D1 amdgpu.cik_s=
upport=3D0"
> # update-grub
>=20
> 3) reboot the system
>=20
>=20
> Unstable system configuration (power management crashes the entire sys=
tem
> when it tries to power off the monitors):
> 1) Make sure amdgpu can be loaded:
> # vim /etc/modprobe.d/blacklist.conf
> -> add "blacklist amdgpu" at the bottom
> # update-initramfs -u -k all
>=20
> 2) Update grub parameters:
> # vim /etc/default/grub
> -> Set the correct defaults:
> GRUB_CMDLINE_LINUX_DEFAULT=3D"radeon.cik_support=3D0 amdgpu.cik_s=
upport=3D1
> amdgpu.modeset=3D1 amdgpu.dc=3D1 amdgpu.dpm=3D1"
> # update-grub
>=20
> 3) reboot the system
>=20
>=20
> It's a fairly easy way to test it as is freezes every time you leave t=
he PC
> idle. I haven't seen it crash during my daily usage, but it does crash=
when
> the power management kicks in.
oh, sorry. There is a "typo" in my previous answer. For the unsta=
ble system you
need to remove amdgpu from the blacklisted modules. Let me "correct&qu=
ot; the
unstable system configuration:
1) Make sure amdgpu can be loaded:
# vim /etc/modprobe.d/blacklist.conf
-> REMOVE "blacklist amdgpu" at the bottom
# update-initramfs -u -k all
2) Update grub parameters:
# vim /etc/default/grub
-> Set the correct defaults: GRUB_CMDLINE_LINUX_DEFAULT=3D"radeon.c=
ik_support=3D0
amdgpu.cik_support=3D1 amdgpu.modeset=3D1 amdgpu.dc=3D1 amdgpu.dpm=3D1"
# update-grub
3) reboot the system