HDMI ELD info failed to extract occasionally

taiten987 at gmail.com taiten987 at gmail.com
Fri Oct 5 04:05:03 PDT 2012


Hi,

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?
I am also looking for the right place to file the bug, please suggest.

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
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