From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 104275] Stoney Ridge laptop display goes blank after HDMI gets plugged/unplugged in extended mode. Date: Wed, 20 Dec 2017 09:58:14 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1930380315==" 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 C9BD889D79 for ; Wed, 20 Dec 2017 09:58:13 +0000 (UTC) In-Reply-To: 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 --===============1930380315== Content-Type: multipart/alternative; boundary="15137638930.799FE67.1168"; charset="UTF-8" --15137638930.799FE67.1168 Date: Wed, 20 Dec 2017 09:58:13 +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=3D104275 --- Comment #8 from Michel D=C3=A4nzer --- (In reply to Alex_Zhang1 from comment #7) Without the patch referenced in comment 3, a buffer must be pinned to VRAM before it can be scanned out (displayed). The problem described in this rep= ort happens because pinning to VRAM fails, because there isn't enough space in VRAM. The patch allows buffers to be pinned to GTT instead of VRAM for scan= out. Another DC patch is probably needed to fix the garbled display described in comment 4. Maybe try the patch on top of the amd-staging-drm-next branch. --=20 You are receiving this mail because: You are the assignee for the bug.= --15137638930.799FE67.1168 Date: Wed, 20 Dec 2017 09:58:13 +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

Commen= t # 8 on bug 10427= 5 from Michel D=C3=A4nzer 
(In reply to Alex_Zhang1 from comment #7)

Without the patch referenced in com=
ment 3, a buffer must be pinned to VRAM
before it can be scanned out (displayed). The problem described in this rep=
ort
happens because pinning to VRAM fails, because there isn't enough space in
VRAM. The patch allows buffers to be pinned to GTT instead of VRAM for scan=
out.
Another DC patch is probably needed to fix the garbled display described in
comment 4. Maybe try the patch =
on top of the amd-staging-drm-next branch.

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