From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 91880] Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing Date: Thu, 02 Jun 2016 14:54:14 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1695534039==" 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 AFBB96EC0A for ; Thu, 2 Jun 2016 14:54:14 +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 --===============1695534039== Content-Type: multipart/alternative; boundary="14648792541.7eBe.20295"; charset="UTF-8" --14648792541.7eBe.20295 Date: Thu, 2 Jun 2016 14:54:14 +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=3D91880 --- Comment #105 from Jan Ziak <0xe2.0x9a.0x9b@gmail.com> --- (In reply to Ernst Sj=C3=B6strand from comment #104) > https://patchwork.freedesktop.org/series/8116/ GPU: R9 390 GPU manufacturer: Gigabyte Kernel: 4.5.5 Kernel module: radeon.ko I applied the kernel patches and let Metro Last Light benchmark run for abo= ut an hour with DPM enabled while I went shopping. Before the patch: The benchmark would lock the GPU after a while After the patch: Running OK for about an hour I checked that 'new_smc' variable in radeon/cik.c gets set to 1. ---- Remaining issues on R9 390 after the patch: Heavy screen flickering, not capturable on a screenshot. It is related to m= clk transitions. Forcing mclk=3D1.5GHz, and letting sclk be controlled by DPM, removes the flickering. I created a new bugzilla entry related to the flickering: http://bugs.freedesktop.org/show_bug.cgi?id=3D96326 ---- GPU lockup in http://bugs.freedesktop.org/show_bug.cgi?id=3D92302 might hav= e the same cause as this issue. --=20 You are receiving this mail because: You are the assignee for the bug.= --14648792541.7eBe.20295 Date: Thu, 2 Jun 2016 14:54:14 +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 # 105 on bug 91880<= /a> from Jan Ziak 
(In reply to Ernst Sj=C3=B6strand from comment #104)
> https://patchwork.freedesktop.org/series/8116/

GPU: R9 390
GPU manufacturer: Gigabyte
Kernel: 4.5.5
Kernel module: radeon.ko

I applied the kernel patches and let Metro Last Light benchmark run for abo=
ut
an hour with DPM enabled while I went shopping.

Before the patch: The benchmark would lock the GPU after a while

After the patch: Running OK for about an hour

I checked that 'new_smc' variable in radeon/cik.c gets set to 1.

----

Remaining issues on R9 390 after the patch:

Heavy screen flickering, not capturable on a screenshot. It is related to m=
clk
transitions. Forcing mclk=3D1.5GHz, and letting sclk be controlled by DPM,
removes the flickering.

I created a new bugzilla entry related to the flickering:
http://bugs.freedesktop.org/show_bug.cg=
i?id=3D96326

----

GPU lockup in http://bugs.freedesktop.org/show_bug.cg=
i?id=3D92302 might have the
same cause as this issue.

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