[Bug 200695] Blank screen on RX 580 with amdgpu.dc=1 enabled (no displays detected)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=200695

Bogomil Vasilev (smirky at smirky.net) changed:

           What    |Removed                     |Added
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                 CC|                            |smirky at smirky.net

--- Comment #28 from Bogomil Vasilev (smirky at smirky.net) ---
(In reply to Alex van Kaam from comment #26)
> hi
> 
> on request of the people over at SUSE I tested my Tumbleweed install with
> the Kernel of the Day.
> 
> first did:  BOOT_IMAGE=/boot/vmlinuz-5.0.0-rc8-1.g4ddf057-default
> root=UUID=fce8b6dd-98d6-4b86-a5d9-2812f3c1e242 splash=silent
> resume=/dev/disk/by-uuid/c9f35ed5-bdbe-413a-801b-7df1c8a64145 quiet
> 
> and it booted with a screen
> 
> then did:   BOOT_IMAGE=/boot/vmlinuz-5.0.0-rc8-1.g4ddf057-default
> root=UUID=fce8b6dd-98d6-4b86-a5d9-2812f3c1e242 splash=silent
> resume=/dev/disk/by-uuid/c9f35ed5-bdbe-413a-801b-7df1c8a64145 quiet
> amdgpu.dc=1
> 
> and it also booted with a screen
> 
> so on this specifik hardware HP Notebook - 17-ca0710nd, Advanced Micro
> Devices, Inc. [AMD/ATI] Stoney [Radeon R2/R3/R4/R5 Graphics] it seems to be
> fixed

Why do you set amdgpu.dc=1? Isn't this the default value anyway?
>From what I understood, you tested exactly the same thing.

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