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[SOLVED] AMDGPU black screen at boot
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Althorion
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Joined: 24 Jun 2010
Posts: 23

PostPosted: Mon Sep 26, 2016 2:28 pm    Post subject: [SOLVED] AMDGPU black screen at boot Reply with quote

I’ve compiled new kernel from gentoo-sources-4.7.4, making sure that all options from the ADMGPU wiki page were set, but I got black screen after boot as soon as the kernel loads (or at least I think so, the messages run to quickly to be sure). What am I missing?

My .config file
GPU: AMD Radeon RX 480

Solution:
You need to have CONFIG_DRM_FBDEV_EMULATION turned on.


Last edited by Althorion on Mon Sep 26, 2016 4:24 pm; edited 1 time in total
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Zucca
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Joined: 14 Jun 2007
Posts: 1531
Location: KUUSANKOSKI, Finland

PostPosted: Mon Sep 26, 2016 4:12 pm    Post subject: Reply with quote

Hi.

Do you have a display manager or X/wayland starting as soon as boot process has reached a required level?
Do you use OpenRC or systemd?
What's your kernel command line?
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Althorion
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Joined: 24 Jun 2010
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PostPosted: Mon Sep 26, 2016 4:23 pm    Post subject: Reply with quote

I don’t have X installed and I use systemd, can’t tell you kernel command line from the top of my head.

But I have actually solved this issue (by asking on IRC):
You need to have CONFIG_DRM_FBDEV_EMULATION turned on, that Wiki doesn’t say anything about.
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