https://bugzilla.kernel.org/show_bug.cgi?id=200607
--- Comment #5 from Parker Reed (parker.l.reed@gmail.com) --- Linux e55 4.18.0-rc5-g9ffc59d57228 #1 SMP PREEMPT Thu Jul 19 15:27:18 EDT 2018 x86_64 GNU/Linux
Newly updated linux-firmware (18.20)
log2.txt
Booted fine, went to launch a fullscreen Wine game, threw the error.
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Linux e55 4.18.0-rc5-g9ffc59d57228 #1 SMP PREEMPT Thu Jul 19 15:27:18 EDT 2018 x86_64 GNU/Linux
Reverted linux-firmware
log3.txt
This time even after revert SDDM/Plasma failed to load and subsequent driver driver.
I realized that the working state I was in was due to amdgpu.dc=0 and not the version of the firmware.
Both of those logs are with amdgpu.dc=1 and exhibit the crash no matter the firmware version.
I am currently booted into 18.20 firmware and amdgpu.dc=0 and everything is working.