From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 95306] Random Blank(black) screens on "Carrizo" Date: Fri, 07 Oct 2016 10:51:25 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1811258935==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 0021B6E389 for ; Fri, 7 Oct 2016 10:51:24 +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 --===============1811258935== Content-Type: multipart/alternative; boundary="14758374842.c075e81.28971"; charset="UTF-8" --14758374842.c075e81.28971 Date: Fri, 7 Oct 2016 10:51:24 +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=3D95306 --- Comment #20 from Tom St Denis --- If they're using the pro driver (dkms + closed GL/etc) there are known issu= es with CGCG and the UMD. Try booting with amdgpu.cg_mask=3D0xFFFFFFFB to disable CGCG. Note this wi= ll also disable power gating so battery life/temp might be an issue :-/ I unfortunately don't have an 88xx series Carrizo (mine is an A12-9800) and with the all open UMD I haven't noticed any problems with PG/CG. Nicolai has an 8800 I think we should involve him here. --=20 You are receiving this mail because: You are the assignee for the bug.= --14758374842.c075e81.28971 Date: Fri, 7 Oct 2016 10:51:24 +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 # 20 on bug 95306<= /a> from Tom St Denis 
If they're using the pro driver (dkms + closed GL/etc) there a=
re known issues
with CGCG and the UMD.

Try booting with amdgpu.cg_mask=3D0xFFFFFFFB to disable CGCG.  Note this wi=
ll
also disable power gating so battery life/temp might be an issue :-/

I unfortunately don't have an 88xx series Carrizo (mine is an A12-9800) and
with the all open UMD I haven't noticed any problems with PG/CG.

Nicolai has an 8800 I think we should involve him here.

You are receiving this mail because:
  • You are the assignee for the bug.
= --14758374842.c075e81.28971-- --===============1811258935== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============1811258935==--