linux-kernel - Re: Lenovo X240 (haswell) suspend-to-ram hangs on 3-14.0-rc2

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Date:	Fri, 14 Feb 2014 21:07:35 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Jeff Chua <jeff.chua.linux@...il.com>
Cc:	Peter Hurley <peter@...leysoftware.com>,
	lkml <linux-kernel@...r.kernel.org>,
	Dave Airlie <airlied@...hat.com>
Subject: Re: Lenovo X240 (haswell) suspend-to-ram hangs on 3-14.0-rc2

At Sat, 15 Feb 2014 03:01:24 +0800,
Jeff Chua wrote:
> 
> On Fri, Feb 14, 2014 at 9:57 PM, Takashi Iwai <tiwai@...e.de> wrote:
> > The other possible change in hda_intel.c is the enablement of runtime
> > PM for Panther Point.  But it's been working for other chips, so
> > wondering why it hits anything.  In anyway, please give the full
> > Oops messages not only the stack trace.
> 
> > Any difference in the sound hardware, i.e. PCI controller and codec
> > chips?
> 
> # X230 reported the sound card as:
> 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset
> Family High Definition Audio Controller (rev 04)
> == HDA Intel PCH, ALC269VC Analog
> 
> # X240 reported the sound card as:
> 00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio
> Controller (rev 04)
> ==  HDA Intel PCH, ALC292 Analog
> 
> Now I managed to make suspend-to-ram work by using sound as module
> instead of build-in.
> 
> Here's the difference ...
> 
> # bad
> CONFIG_SND_HDA_CODEC_HDMI =y
> CONFIG_SND_HDA_INTEL=y
> CONFIG_SND_HDA_INPUT_BEEP=y
> CONFIG_SND_HDA_CODEC_HDMI=y
> CONFIG_SND_HDA_GENERIC=y
> 
> 
> # good
> CONFIG_SND_HDA_CODEC_HDMI =m
> CONFIG_SND_HDA_INTEL=m
> CONFIG_SND_HDA_INPUT_BEEP=m
> CONFIG_SND_HDA_CODEC_HDMI=m
> CONFIG_SND_HDA_GENERIC=m

It might be the remaining bugs of modularization in 3.14-rc2.
A few patches are found in for-linus branch of sound git tree, which
are included in Today's pull request.  Could you give it a try?

  git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-linus


Takashi
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