At Wed, 22 Jan 2014 12:32:28 +0100,
David Henningsson wrote:
>
> From: Niraj <[email protected]>
>
> Apparently this board seems to need some extra initialization before a proper
> codec probe value can be read.
>
> BugLink: https://bugs.launchpad.net/bugs/1155202
> Signed-off-by: David Henningsson <[email protected]>
> ---
> sound/pci/hda/hda_intel.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> Hi Takashi,
>
> Here's a patch from Niraj, which has found this code below to make audio work
> on the Intel DZ77SL-50K board. Without it, no codecs will be detected.
>
> I'm not sure if you like it this way or if you want me or Niraj to change
> anything, or debug further. Or maybe add a new quirk for this particular
> device?
Of course, I don't like this :)
The patch essentially disables the codec reset in *all* cases after a
codec is probed. This smells badly of a future regression.
FWIW, you can set a forced codec probe mask in probe_mask_list[].
The bit 0x100 means to force the detection.
But, before going that direction, could you clarify how this fixes the
probing at all? Which azx_init_chip() calls hinders the probing of an
active codec?
thanks,
Takashi
>
> diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
> index fa2879a..2bf46e9 100644
> --- a/sound/pci/hda/hda_intel.c
> +++ b/sound/pci/hda/hda_intel.c
> @@ -1306,6 +1306,12 @@ static void azx_init_chip(struct azx *chip, int
> full_reset)
>
> /* reset controller */
> azx_reset(chip, full_reset);
> + if (!chip->codec_mask) {
> + azx_writel(chip, GCTL, 0x100);
> + while(azx_readl(chip, GCTL) != 0x0);
> + azx_writel(chip, GCTL, 0x1);
> + azx_reset(chip, full_reset);
> + }
>
> /* initialize interrupts */
> azx_int_clear(chip);
> --
> 1.7.9.5
>
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1155202
Title:
[Intel DZ77SL-50K, Intel PantherPoint HDMI, Digital Out, HDMI] No
sound at all
Status in “alsa-driver” package in Ubuntu:
Incomplete
Bug description:
I am using ubuntu 10.04
I expected sound
Got no sound at all
I am very new to ubuntu so I have no idea how to find the version of
the package I am using
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.2.0-38.61-generic-pae 3.2.37
Uname: Linux 3.2.0-38-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: i386
ArecordDevices: **** List of CAPTURE Hardware Devices ****
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jan 1750 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf7c30000 irq 45'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:80862806,80860101,00100000'
Controls : 7
Simple ctrls : 2
CurrentDmesg: [ 24.291482] eth0: no IPv6 routers present
Date: Thu Mar 14 08:53:13 2013
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386
(20120817.3)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
1750 jan F.... pulseaudio
PID ACCESS COMMAND
Symptom_Jack: Digital Out, HDMI
Symptom_Type: No sound at all
Title: [, Intel PantherPoint HDMI, Digital Out, HDMI] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/19/2012
dmi.bios.vendor: Intel Corporation
dmi.bios.version: SLZ7710H.86A.0055.2012.0319.2140
dmi.board.name: DZ77SL-50K
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG55115-300
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnIntelCorporation:bvrSLZ7710H.86A.0055.2012.0319.2140:bd03/19/2012:svn:pn:pvr:rvnIntelCorporation:rnDZ77SL-50K:rvrAAG55115-300:cvn:ct3:cvr:
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