linux-kernel - 2.6.28-rc regression: digital audio inactive after resume from suspend

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Message-ID: <20081124212225.GA5872@dose.home.local>
Date:	Mon, 24 Nov 2008 22:22:25 +0100
From:	Tino Keitel <tino.keitel@....de>
To:	linux-kernel@...r.kernel.org, tiwai@...e.de
Subject: 2.6.28-rc regression: digital audio inactive after resume from
	suspend

Hi,

the digital audio out (optical) is inactive (no red light, and
therefore silent) after resume from suspend on my Mac mini Core Duo.
When I disable and enable the IEC958 toggle, it works again.

This didn't happen with 2.6.27. Currently, I use 2.6.28-rc6 as of
commit ged31348.

This is the hardware in lspci:

00:1b.0 Audio device [0403]: Intel Corporation 82801G (ICH7 Family)
High Definition Audio Controller [8086:27d8] (rev 02)
	Subsystem: Sigmatel Device [8384:7680]
	Flags: bus master, fast devsel, latency 0, IRQ 22
	Memory at 90440000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: HDA Intel
	Kernel modules: snd-hda-intel

The dmesg output with 2.6.27 and 2.6.28-rc are here:

http://tikei.de/dmesg_2.6.27.5
http://tikei.de/dmesg_2.6.28-rc6

Regards,
Tino
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