From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grigori Goronzy Subject: Re: [PATCH 000/165] radeon drm-next patches Date: Sat, 29 Jun 2013 19:37:35 +0200 Message-ID: <51CF1B5F.6010504@chown.ath.cx> References: <20130626235756.59f556e6@ilfaris> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from pygmy.kinoho.net (pygmy.kinoho.net [134.0.27.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 8C0CFE5E69 for ; Sat, 29 Jun 2013 10:47:05 -0700 (PDT) In-Reply-To: <20130626235756.59f556e6@ilfaris> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: Julian Wollrath Cc: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On 26.06.2013 23:57, Julian Wollrath wrote: > Hi, > > I just tried the DPM support out on a E-450 APU (HD6320) and it did not > work like expected. In the terminal everything seemed ok but when I > started a display manager, the screen showed garbage and the system > basically locked up. The radeon and drm related parts of the syslog are > below. > > If you need further information, feel free to ask. > I have the same problem with the same APU. Disabling power gating (set enable_gfx_power_gating to false in sumo_dpm.c:sumo_dpm_init) fixes it. So this problem may related to power gating. The difference in power consumption seems to be small, but I'd still prefer it working. By the way, the "disable_gfx_power_gating_in_uvd" quirk is not actually used, seems to be some leftover from debugging or such. Best regards Grigori