[Bug 101499] Black screen when detaching HDMI cable (AMD A10-9620P)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101499

--- Comment #17 from Carlo Caione <carlo at caione.org> ---
Created attachment 132130
  --> https://bugs.freedesktop.org/attachment.cgi?id=132130&action=edit
dm_plane_helper_prepare_fb with AMDGPU_GEM_DOMAIN_GTT

> Right, sorry, with DC you need to tweak dm_plane_helper_prepare_fb instead.
Yup, I tried this but not much luck. In attachment what I get when using
AMDGPU_GEM_DOMAIN_GTT. Using AMDGPU_GEM_DOMAIN_GTT | AMDGPU_GEM_DOMAIN_VRAM is
pretty much the same but the cursor is correctly displayed (even though I
cannot move it).

The log is filled with:

[drm:dm_plane_helper_prepare_fb [amdgpu]] *ERROR* Failed to pin framebuffer

/me scratch his head

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