From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: [PATCH] drm/i915: Add a DRM property "psr" Date: Tue, 18 Mar 2014 13:06:20 -0700 Message-ID: <20140318130620.07fa8680@jbarnes-desktop> References: <1395172267-9203-1-git-send-email-sivachandra@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from gproxy2-pub.mail.unifiedlayer.com (gproxy2-pub.mail.unifiedlayer.com [69.89.18.3]) by gabe.freedesktop.org (Postfix) with SMTP id 5980E6E9D8 for ; Tue, 18 Mar 2014 13:05:38 -0700 (PDT) In-Reply-To: <1395172267-9203-1-git-send-email-sivachandra@chromium.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Siva Chandra Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Tue, 18 Mar 2014 12:51:07 -0700 Siva Chandra wrote: > This property helps one turn PSR "on" and "off" via xrandr. > The default value is same as that of the module param i915.enable_psr. > > Signed-off-by: Siva Chandra > --- So are you using this in Chromium for disabling PSR in cases where it doesn't work? Or to optimize power consumption when the kernel driver gets it wrong? Or just for debug? Seems potentially useful, just curious what motivated you guys. Thanks, -- Jesse Barnes, Intel Open Source Technology Center