[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 #8 from Carlo Caione <carlo at caione.org> ---
Interesting. Ok then, back to square one: no BIOS options to tweak the
integrated graphics memory / controller.

On a side note: is it normal so many error messages in the journal? Like:

kernel: amdgpu 0000:00:01.0: ffff9cccade4d800 pin failed
kernel: [drm:amdgpu_crtc_page_flip_target [amdgpu]] *ERROR* failed to pin new
abo buffer before flip
gdm-Xorg-:0[672]: (WW) AMDGPU(0): flip queue failed: Cannot allocate memory
gdm-Xorg-:0[672]: (WW) AMDGPU(0): Page flip failed: Cannot allocate memory
gdm-Xorg-:0[672]: (EE) AMDGPU(0): present flip failed
...
gdm-Xorg-:0[672]: (WW) AMDGPU(0): get vblank counter failed: Invalid argument

or

kernel: amdgpu: [powerplay] min_core_set_clock not set

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