From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 65761] HD 7970M Hybrid - hangs and errors and rmmod causes crash Date: Tue, 21 Jan 2014 00:55:14 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by gabe.freedesktop.org (Postfix) with ESMTP id 0F48AFA93D for ; Mon, 20 Jan 2014 16:55:19 -0800 (PST) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2DAD620138 for ; Tue, 21 Jan 2014 00:55:18 +0000 (UTC) Received: from bugzilla1.web.kernel.org (bugzilla1.web.kernel.org [172.20.200.51]) by mail.kernel.org (Postfix) with ESMTP id EA78C20155 for ; Tue, 21 Jan 2014 00:55:15 +0000 (UTC) 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 https://bugzilla.kernel.org/show_bug.cgi?id=65761 --- Comment #17 from Christoph Haag --- It reads /sys/kernel/debug/dri/0/radeon_pm_info once a second and lm_sensors I think. Powered down in terms of vgaswitcheroo/dynoff, I don't think so. When X is running I don't read dynoff for the radeon gpu from /sys/kernel/debug/vgaswitcheroo/switch but when X is not running, it powers down. I checked with radeon-profile because it's actually the fan that is sometimes annoying to me. The fan only powers off for seconds before starting to run again, mostly only up to "level 1" for a while. But sometimes it runs at high speed for seconds or even minutes for seemingly no reason and then powers down again. When monitoring with sudo sh -c 'while true; do cat /sys/kernel/debug/dri/0/radeon_pm_info; sleep 0.5; done' I see the same thing. When clicking on an unfocussed window and focussing it with that, it goes from power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 850 pcie gen: 3 uvd vclk: 0 dclk: 0 to power level 2 sclk: 85000 mclk: 120000 vddc: 1050 vddci: 975 pcie gen: 3 uvd vclk: 0 dclk: 0 stays there for ~6 seconds and then goes back to power level 0. If it was garbage it would be pretty consistent garbage with the gpu temperature rising pretty much exactly on every of those spike... If constant polling from /sys/kernel/debug/dri/0/radeon_pm_info or so is causing it, then the long periods of no spikes when actually doing nothing in X confuse me. Currently it's just this situation that the fan keeps going on and off all the time and I am pretty sure it is on most of the time when I'm doing something, like clicking things and stuff and when I'm exiting X and see dynoff in /sys/kernel/debug/vgaswitcheroo/switch then the fan actually stays off (I think. Going to a tty while X is running in the background does not result in dynoff) If there is a better way to find out why the fan doesn't shut off, I'd gladly investigate. The code is here, by the way: https://github.com/marazmista/radeon-profile -- You are receiving this mail because: You are watching the assignee of the bug.