From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18 Date: Thu, 08 Nov 2018 10:59:18 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0778749668==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 5DB4A6E5FB for ; Thu, 8 Nov 2018 10:59:18 +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 --===============0778749668== Content-Type: multipart/alternative; boundary="15416747580.c2ED.19097" Content-Transfer-Encoding: 7bit --15416747580.c2ED.19097 Date: Thu, 8 Nov 2018 10:59:18 +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=3D108693 Bug ID: 108693 Summary: black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=3D4.18 Product: DRI Version: XOrg git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: andrey.arapov@nixaid.com Hello, some of the MacBookPro 14,3 users have been struggling with the black screen issue on their systems, I have been bisecting the kernel commits that came = to v4.18-rc1 and found that the problem is gone when I revert this commit "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb I presume that the driver cannot get the display_info.bpc from the screen s= o it defaults to COLOR_DEPTH_UNDEFINED causing the black screen. Please let me know, https://github.com/torvalds/linux/commit/e03fd3f300f6184c1264186a4c815e93bf= 658abb Followed-by https://github.com/Dunedan/mbp-2016-linux/issues/73#issuecomment-422397681 Kind Regards, Andrey Arapov P.S. I have been sending an email to Harry Wentland & Alex Deucher on 18 Se= pt. 2018, but no response followed. --=20 You are receiving this mail because: You are the assignee for the bug.= --15416747580.c2ED.19097 Date: Thu, 8 Nov 2018 10:59:18 +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 108693
Summary black screen with "drm/amd/display: Do not limit color d= epth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=3D4.18
Product DRI
Version XOrg git
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity major
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter andrey.arapov@nixaid.com 

Hello,

some of the MacBookPro 14,3 users have been struggling with the black screen
issue on their systems, I have been bisecting the kernel commits that came =
to
v4.18-rc1 and found that the problem is gone when I revert this commit
"drm/amd/display: Do not limit color depth to 8bpc"
e03fd3f300f6184c1264186a4c815e93bf658abb

I presume that the driver cannot get the display_info.bpc from the screen s=
o it
defaults to COLOR_DEPTH_UNDEFINED causing the black screen.

Please let me know,

https://github.com/torvalds/linux/commit/e03fd3f300f6184=
c1264186a4c815e93bf658abb

Followed-by
https://github.com/Dunedan/mbp-2016-linux/issues/73#issuecommen=
t-422397681

Kind Regards,
Andrey Arapov

P.S. I have been sending an email to Harry Wentland & Alex Deucher on 1=
8 Sept.
2018, but no response followed.

You are receiving this mail because:
  • You are the assignee for the bug.
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