[Bug 201273] Fatal error during GPU init amdgpu RX560

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=201273

Marco (rodomar705 at protonmail.com) changed:

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                 CC|                            |rodomar705 at protonmail.com

--- Comment #48 from Marco (rodomar705 at protonmail.com) ---
Same here on a B450 and a RX580 GPU. Random black screen with complete lockup
of the system (panic, probably?) sometimes after booting up the system,
beetween 5 seconds and two minutes post graphical boot. If the system survives
this time it's stable until shutdown.

Quite annoying, frankly. I still need to test properly the module parameter
amdgpu.dc=0, that seems to disable the firmware load of the Display Controller
(if I remember correctly); but what feature of the card (if any at all) will
not work if the firmware is not loaded?

Monitor used is a 120 Hz connected via DVI-D to the GPU. Since someone quoted
that was simply a lockup of the output, simply fixed with a replug of the
monitor, I've tried to connect the monitor via HDMI after it froze and
blackscreened; however no output there either, and no response from the system
when I was pressing the power button; henceforth that to me look like a kernel
panic.

It is a problem of the open source driver or the DC firmware itself the cause
of this panics? Has anyone tried to contact AMD about this issue if it's the
latter one?

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