From: boris.dekshteyn@gmail.com (Boris A. Dekshteyn)
To: help-guix@gnu.org
Subject: Re: Screen does not wake up from suspend ("No signal") on a Radeon RX 580
Date: Tue, 29 Jan 2019 19:25:48 +1200 [thread overview]
Message-ID: <87va28c4cj.fsf@gmail.com> (raw)
In-Reply-To: <87imy9djlp.fsf@ambrevar.xyz> (Pierre Neidhardt's message of "Mon, 28 Jan 2019 13:58:42 +0100")
Pierre Neidhardt <mail@ambrevar.xyz> writes:
>> It would be nice :). In its absence, xf86-video-modesetting should be
>> used. But without firmware you don't have KMS, so ...
>
> Done.
>
>> What kernel version is used?
>
> 4.20.4-gnu
>
>> What does dmesg say about amdgpu?
>
> Absolutely nothing.
>
>> Anyway i'm suspect that without a firmware (deblobed in linux-libre) KMS
>> and power management (and hibernation too) will not work.
>
> Any idea where I could get more info about that?
From arch-wiki:
--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---
> Also what good it the amdgpu without the firmware? What's the role of the
> firmware in the picture?
Of course, I could be wrong, but most likely, for hardware acceleration,
power management etc., proprietary firmware required. Without this, only
a very limited functionality of the video card will work.
I think some explanations can be found in this thread:
https://www.reddit.com/r/Amd/comments/950g8r/will_we_be_able_to_game_anytime_soon_using_amd/
---
WBR, Boris Dekshteyn
next prev parent reply other threads:[~2019-01-29 7:25 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-26 10:39 Screen does not wake up from suspend ("No signal") on a Radeon RX 580 Pierre Neidhardt
2019-01-26 10:52 ` swedebugia
2019-01-26 20:09 ` Maxim Cournoyer
2019-01-27 9:09 ` Pierre Neidhardt
2019-01-27 21:46 ` Boris A. Dekshteyn
2019-01-28 9:52 ` Pierre Neidhardt
2019-01-28 12:19 ` Boris A. Dekshteyn
2019-01-28 12:58 ` Pierre Neidhardt
2019-01-29 7:25 ` Boris A. Dekshteyn [this message]
2019-01-29 11:15 ` Pierre Neidhardt
2019-01-29 12:34 ` Boris A. Dekshteyn
2019-02-04 22:41 ` ison
2019-02-06 13:52 ` Pierre Neidhardt
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