From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 79806] Performance degradation after resume Date: Fri, 04 Jul 2014 17:23:27 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0706850328==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 3560B6E80A for ; Fri, 4 Jul 2014 10:23:27 -0700 (PDT) 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 --===============0706850328== Content-Type: multipart/alternative; boundary="1404494607.f02D51.31482"; charset="us-ascii" --1404494607.f02D51.31482 Date: Fri, 4 Jul 2014 17:23:27 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=79806 --- Comment #4 from Gabor Enyedi --- (In reply to comment #3) > > Workaround: when resume, execute "echo auto > > > /sys/class/drm/card0/device/power_dpm_force_performance_level". > > How did you do that? It gives me "echo: write error: Invalid argument" on > kernel 3.15 It simply works without any trick. It also works with stock kernel 3.13. Are you sure that you have the same ATI card? What I have found since I have posted the bug is that sometimes (very rarely) this simple workaround is not enough. Now, I use the following: echo low > /sys/class/drm/card0/device/power_dpm_force_performance_level echo battery > /sys/class/drm/card0/device/power_dpm_state echo auto > /sys/class/drm/card0/device/power_dpm_force_performance_level echo balanced > /sys/class/drm/card0/device/power_dpm_state -- You are receiving this mail because: You are the assignee for the bug. --1404494607.f02D51.31482 Date: Fri, 4 Jul 2014 17:23:27 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 4 on bug 79806 from 
(In reply to comment #3)
> > Workaround: when resume, execute "echo auto >
> > /sys/class/drm/card0/device/power_dpm_force_performance_level".
> 
> How did you do that? It gives me "echo: write error: Invalid argument" on
> kernel 3.15

It simply works without any trick. It also works with stock kernel 3.13. Are
you sure that you have the same ATI card?

What I have found since I have posted the bug is that sometimes (very rarely)
this simple workaround is not enough. Now, I use the following:

echo low > /sys/class/drm/card0/device/power_dpm_force_performance_level
echo battery > /sys/class/drm/card0/device/power_dpm_state
echo auto > /sys/class/drm/card0/device/power_dpm_force_performance_level
echo balanced > /sys/class/drm/card0/device/power_dpm_state

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