From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: HDMI ELD info failed to extract occasionally Date: Fri, 05 Oct 2012 18:10:10 +0300 Message-ID: <87r4pdosz1.fsf@intel.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga03.intel.com (mga03.intel.com [143.182.124.21]) by gabe.freedesktop.org (Postfix) with ESMTP id EA53E9EB00 for ; Fri, 5 Oct 2012 08:10:15 -0700 (PDT) In-Reply-To: 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: "taiten987@gmail.com" , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On Fri, 05 Oct 2012, "taiten987@gmail.com" wrote: > I found a potential bug for i915 regarding to ELD parsing. > > I was trying to monitor ELD by watching "/proc/asound/card0/eld#3.0" > and I realized that the ELD might failed to read from HDMI when AC > power is not plugged. This looks like a potential hardware or driver > issue, does anyone aware of this? Hi Taiten, that's a bit thin on the details. What's the exact difference you see with AC vs. battery? Is there anything special in dmesg? If not, how about when you enable drm.debug=0xe kernel parameter? Which kernel version are you running? > I am also looking for the right place to file the bug, please suggest. https://bugs.freedesktop.org/enter_bug.cgi Product: DRI, Component: DRM/Intel BR, Jani. > > lspci result > 00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics > Controller (rev 05) > 00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host > Controller (rev 04) > 00:16.0 Communication controller: Intel Corporation Panther Point MEI > Controller #1 (rev 04) > 00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host > Controller #2 (rev 04) > 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio > Controller (rev 04) > 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 > (rev c4) > 00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 > (rev c4) > 00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host > Controller #1 (rev 04) > 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) > 00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller > [RAID mode] (rev 04) > 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) > > Best Regads, > Taiten Peng > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/dri-devel