From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 107793] Black screen on boot for Fedora 28 with 4.17 kernel (i.e. with amdgpu.dc defaulted) Date: Mon, 03 Sep 2018 08:32:07 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0375334801==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id A4FAD89F3C for ; Mon, 3 Sep 2018 08:32:07 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0375334801== Content-Type: multipart/alternative; boundary="15359635270.2346AB.2869" Content-Transfer-Encoding: 7bit --15359635270.2346AB.2869 Date: Mon, 3 Sep 2018 08:32:07 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D107793 Bug ID: 107793 Summary: Black screen on boot for Fedora 28 with 4.17 kernel (i.e. with amdgpu.dc defaulted) Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: simon.geard@gmail.com Created attachment 141422 --> https://bugs.freedesktop.org/attachment.cgi?id=3D141422&action=3Dedit Contents of /proc/cpuinfo on successful boot My Fedora 28 desktop stopped booting up cleanly after switching to the 4.17 kernel where amdgpu.dc became the default... the system seems to be working (e.g when installing updates, it automatically reboots once done), but the screen goes black immediately after grub loads the kernel, and it remains t= hat way indefinitely. Passing "amdgpu.dc=3D0" on the kernel command line resolv= es the problem. The active graphics card is an AMD RX-470, the CPU is an AMD A10-7850k (with unused onboard graphics). This was logged on the RedHat bugzilla, but after receiving no response in = over a month, I've opted to log it here instead. Here's the link to the downstre= am bug: https://bugzilla.redhat.com/show_bug.cgi?id=3D1601812 I've re-attached the same files provided there =E2=80=93 the output of lspc= i, dmesg, and /proc/cpuinfo for a successful boot =E2=80=93 but if you need anything = else to track this down, let me know. --=20 You are receiving this mail because: You are the assignee for the bug.= --15359635270.2346AB.2869 Date: Mon, 3 Sep 2018 08:32:07 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated
Bug ID 107793
Summary Black screen on boot for Fedora 28 with 4.17 kernel (i.e. wit= h amdgpu.dc defaulted)
Product DRI
Version unspecified
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter simon.geard@gmail.com 

Created attachment 141422 [details]
Contents of /proc/cpuinfo on successful boot

My Fedora 28 desktop stopped booting up cleanly after switching to the 4.17
kernel where amdgpu.dc became the default... the system seems to be working
(e.g when installing updates, it automatically reboots once done), but the
screen goes black immediately after grub loads the kernel, and it remains t=
hat
way indefinitely. Passing "amdgpu.dc=3D0" on the kernel command l=
ine resolves the
problem.

The active graphics card is an AMD RX-470, the CPU is an AMD A10-7850k (with
unused onboard graphics).


This was logged on the RedHat bugzilla, but after receiving no response in =
over
a month, I've opted to log it here instead. Here's the link to the downstre=
am
bug:

https://b=
ugzilla.redhat.com/show_bug.cgi?id=3D1601812

I've re-attached the same files provided there =E2=80=93 the output of lspc=
i, dmesg,
and /proc/cpuinfo for a successful boot =E2=80=93 but if you need anything =
else to
track this down, let me know.

You are receiving this mail because:
  • You are the assignee for the bug.
= --15359635270.2346AB.2869-- --===============0375334801== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0375334801==--