[Bug 103080] DC driver from drm-next-4.15-dc branch (upstream PR) not working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103080

--- Comment #2 from Carlo Caione <carlo at caione.org> ---
Created attachment 134643
  --> https://bugs.freedesktop.org/attachment.cgi?id=134643&action=edit
CONFIG_DRM_AMD_DC_PRE_VEGA kernel Oops

(In reply to Harry Wentland from comment #1)
> Hi Carlo,
> 
> please pass amdgpu.dc=1 module parameter or set CONFIG_DRM_AMD_DC_PRE_VEGA
> flag at build.

This is interesting. When compiling with CONFIG_DRM_AMD_DC_PRE_VEGA I get a
kernel Oops when connecting the HDMI cable, see the attached log.

But (good news) if I revert
https://cgit.freedesktop.org/~agd5f/linux/commit/?id=8f5ed2ed31944eea5c2746ec66417afac043eabd
I have no kernel Oops and HDMI works fine. So something is definitely wrong
with that commit.

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