From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 101691] gfx corruption on windowed 3d-apps running on dGPU Date: Fri, 25 Aug 2017 02:46:49 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0475857954==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id E0ABE89AE6 for ; Fri, 25 Aug 2017 02:46:48 +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 --===============0475857954== Content-Type: multipart/alternative; boundary="15036292080.a3cb7.22636"; charset="UTF-8" --15036292080.a3cb7.22636 Date: Fri, 25 Aug 2017 02:46:48 +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=3D101691 --- Comment #34 from Ben Widawsky --- Just some thoughts... The corruption are x-tiled cachelines, looks like stale ones. I don't know = what the vertical lines are. It looks to me like the memory is just misbehaving.= I wonder if when you plug in the machine if BIOS tries to crank up DDR, or Graphics voltage. Is there some BIOS setting or update to tweak what happen= s on AC? Is this desktop environment using sprite planes? If the compositor is using= all one plane (which I think is likely), and display was at fault, everything w= ould be corrupt. So please see if there is anything that can be done in BIOS to tell it to n= ot behave differently when on AC. --=20 You are receiving this mail because: You are the assignee for the bug.= --15036292080.a3cb7.22636 Date: Fri, 25 Aug 2017 02:46:48 +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

Comme= nt # 34 on bug 10169= 1 from = Ben Widawsky 
Just some thoughts...

The corruption are x-tiled cachelines, looks like stale ones. I don't know =
what
the vertical lines are. It looks to me like the memory is just misbehaving.=
 I
wonder if when you plug in the machine if BIOS tries to crank up DDR, or
Graphics voltage. Is there some BIOS setting or update to tweak what happen=
s on
AC?

Is this desktop environment using sprite planes? If the compositor is using=
 all
one plane (which I think is likely), and display was at fault, everything w=
ould
be corrupt.


So please see if there is anything that can be done in BIOS to tell it to n=
ot
behave differently when on AC.

You are receiving this mail because:
  • You are the assignee for the bug.
= --15036292080.a3cb7.22636-- --===============0475857954== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0475857954==--