[Bug 211189] vgaarb overrides boot device unexpectedly with Intel and discrete AMDGPU

[bugzilla-daemon at kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=211189

--- Comment #7 from Alex Deucher (alexdeucher at gmail.com) ---
(In reply to Eduardo Medina from comment #6)
> How I do to check that? I force the use of the iGPU from the motherboard,
> but even with that the system identifies the dedicated card as the iGPU and
> vice versa.

When you boot the system, before the OS loads, what GPU displays the sbios
splash screen?  If it's always the dGPU, regardless of what you set in the
sbios, it sounds like the sbios is broken and just always sets the dGPU as
default.  The Linux kernel looks at what the pre-OS environment left when the
kernel loads.

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