From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 69723] GPU lockups with kernel 3.11.0 / 3.12-rc1 when dpm=1 on r600g (Cayman) Date: Wed, 27 Nov 2013 05:01:37 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1470690482==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 370D3FA8B6 for ; Tue, 26 Nov 2013 21:01:38 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1470690482== Content-Type: multipart/alternative; boundary="1385528498.F684A22F2.31085"; charset="us-ascii" --1385528498.F684A22F2.31085 Date: Wed, 27 Nov 2013 05:01:38 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=69723 --- Comment #44 from Alexandre Demers --- Created attachment 89885 --> https://bugs.freedesktop.org/attachment.cgi?id=89885&action=edit A second GPU-Z log, this time pushing a bit more In this new log, I pushed the video card a bit more. We can see there is an sclk 500MHz with a mclk of 650MHz (VDDC @ 1.063V), another intermediate power level using a sclk 500MHz with a mclk of 1300MHz (VDDC @ 1.063V) and finally a last power level using a sclk 830MHz with a mclk of 1300MHz (also using a VDDC @ 1.063V). So, we are missing power level under Linux AND we are not using the same VDDC above the lowest power level. This fact could also explain why we had to limit sclk and mclk (800MHz and 1250MHz) on cards that are not using stock speed (overclocked cards, like mine) if we were not using a high enough VDDC, isn't it? -- You are receiving this mail because: You are the assignee for the bug. --1385528498.F684A22F2.31085 Date: Wed, 27 Nov 2013 05:01:38 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 44 on bug 69723 from 
Created attachment 89885 [details]
A second GPU-Z log, this time pushing a bit more

In this new log, I pushed the video card a bit more. We can see there is an
sclk 500MHz with a mclk of 650MHz (VDDC @ 1.063V), another intermediate power
level using a sclk 500MHz with a mclk of 1300MHz (VDDC @ 1.063V) and finally a
last power level using a sclk 830MHz with a mclk of 1300MHz (also using a VDDC
@ 1.063V).

So, we are missing power level under Linux AND we are not using the same VDDC
above the lowest power level. This fact could also explain why we had to limit
sclk and mclk (800MHz and 1250MHz) on cards that are not using stock speed
(overclocked cards, like mine) if we were not using a high enough VDDC, isn't
it?

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