From: Jani Nikula <jani.nikula@linux.intel.com>
To: "taiten987@gmail.com" <taiten987@gmail.com>,
dri-devel@lists.freedesktop.org
Subject: Re: HDMI ELD info failed to extract occasionally
Date: Fri, 05 Oct 2012 18:10:10 +0300 [thread overview]
Message-ID: <87r4pdosz1.fsf@intel.com> (raw)
In-Reply-To: <CABctmgjPvkEwJjVz2mJVWw98QWyDx15+C7nH6wAecA1PmGzF9w@mail.gmail.com>
On Fri, 05 Oct 2012, "taiten987@gmail.com" <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
prev parent reply other threads:[~2012-10-05 15:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-05 11:05 HDMI ELD info failed to extract occasionally taiten987
2012-10-05 15:10 ` Jani Nikula [this message]
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