KMS but AMDGPU And Black Screen

[Aaron Jones]

https://bugzilla.redhat.com/show_bug.cgi?id=1594488

Set amdgpu.dc=0 in bios and it will work but without hdmi sound. 

> On Aug 18, 2020, at 4:09 PM, Nathan (PLUGAZ) via PLUG-discuss <plug-discuss at lists.phxlinux.org> wrote:
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> Did you get this resolved?
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> I often use nomodeset when setting up my systems initially, until I can turn off the red hat graphical boot, but I've never run a script to install drivers, are you trying to install the official AMD graphics drivers as opposed to the amdgpu open source drivers?
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>> On 2020-08-16 15:03, Seabass via PLUG-discuss wrote:
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>> Recently setup a new computer.
>> Trouble is, every time I try to boot (popOS, about to try Ubuntu) it is just a black screen.
>>  
>> So I get to the boot loader and add the parameter "nomodeset".
>> This is great, until I run AMD's script to install the drivers. They will cancel saying it uses KMS. But I can't boot without that being off initially... 
>> anyone have any suggestions?
>> 
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