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Re: Screen does not wake up from suspend ("No signal") on a Radeon RX 58

From: Pierre Neidhardt
Subject: Re: Screen does not wake up from suspend ("No signal") on a Radeon RX 580
Date: Tue, 29 Jan 2019 12:15:50 +0100
User-agent: mu4e 1.0; emacs 26.1

> --8<---------------cut here---------------start------------->8---
> The amdgpu kernel module should load fine automatically on system boot.
> If it does not happen, then:
> Make sure to #Enable Southern Islands (SI) and Sea Islands (CIK) support
> when needed.
> Make sure you have the latest linux-firmware package installed. This
> driver requires the latest firmware for each model to successfully boot.
> Make sure you do not have nomodeset or vga= as a kernel parameter, since
> amdgpu requires KMS.
> Check that you have not disabled amdgpu by using any kernel module 
> blacklisting.
> --8<---------------cut here---------------end--------------->8---

I read that, and my only guess is that I need the firmware then.
I wonder why I can modprobe "amdgpu" then, and what's the difference between
boot-time and run-time module loading.

> I think some explanations can be found in this thread:

Thanks for the links, that sheds some light on the matter indeed!

Pierre Neidhardt

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