Comme=
nt # 21
on bug 10878=
1
from Shecks
I'd like to report that I am have been experiencing the same i=
ssue. After
upgrading (Fedora 29) from kernel 4.18.18 to 4.19.2 my PC would no longer b=
oot.
I have a an MSI R9 390 GPU and have been using the the following kernel
parameters successfully with previous kernels:-
amdgpu.dc=3D1 radeon.cik_support=3D0 amdgpu.cik_support=3D1 amdgpu.dpm=3D1
After upgrading to kernel 4.19.2 my PC will boot to GRUB but then, as other=
s=20
have posted, the screen goes black (just before the Plymouth loader is
displayed and the switch from text to graphics mode) and then the monitor g=
oes
into standby as no video output is detected.
I have tried booting without the rhgb kernel parameter but this does not so=
lve
the issue, however as suggested by freedesktop above, I removed the
amdgpu.dpm=3D1 kernel parameter and can now successfully boot the 4.19.2 ke=
rnel.
With previous builds I found that my PC was not stable without the amdgpu.d=
pm=3D1
parameter and the GPU would crash as soon as I did anything graphics intens=
ive
(I presume this was due to the GPU power state changing) so I have run the
Unigine Heaven bench mark and so far it seems to be stable (previously on
kernels without amdgpu.dpm=3D1 the GPU would crash either before Unigine He=
aven
had been started or shortly afterward)
I hope this helps pinpoint the issue and if anyone can suggest other tests I
can run to get more information please let me know.