Comment # 202
on bug 91880
from Ioannis Panagiotopoulos
Can confirm that worked with kernel 4.16.7-300 on Fedora 28 Gnome with wayland and the right boot arguments. However this worked when I had the R9 390 installed alone. When I used both the R9 390 and Rx 550 on the same system, the display plugged on the R9 390 did not work correctly and produced broken UI elements from time to time. Furthermore UI was very slow on response. When tried Fedora 28 KDE, SDDM was constantly crashing when it tried to start and stuck on a loop try-to-start->crash->try-to-start. Kubuntu 18.04 KDE worked, but had the same issues as Fedora 28 Gnome. So it seems the dpm bug is at last solved despite the other problems that might be unrelated to dpm. (In reply to heavyjoe from comment #201) > (In reply to Sandeep from comment #200) > > You can probably ignore the warnings, I get them too and nothing bad has > > happened so far. As long as GPU hang doesn't occur, it's all good. > > Thanks for the reply. > In the problem reporting app it is written as > "Unexpeted System Error" The system has encountered a problem and recovered. > > The reason is as i wrote: > WARNING: CPU: 1 PID: 369 at > drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services.h:132 > generic_reg_update_ex+0x12c/0x160 [amdgpu] > > so the system errors can occur as warnings? then i can live with it but i > wasn't sure because it was labeled as system error... > > thanks again. i will go on with that and hope no freezes appear. if you installed the kernel manually, then try to install the kernel-modules-extra package of this kernel version as well.
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