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    SubjectRe: [alsa-devel] Headphone output doesn't work with 3.0.0-rc* anymore
    At Thu, 9 Jun 2011 13:14:01 +0200,
    Michal Hocko wrote:
    >
    > On Thu 09-06-11 11:44:41, Takashi Iwai wrote:
    > > At Thu, 9 Jun 2011 11:28:26 +0200,
    > > Michal Hocko wrote:
    > > >
    > > > [1 <text/plain; us-ascii (7bit)>]
    > > > On Thu 09-06-11 11:20:04, Takashi Iwai wrote:
    > > > > At Thu, 9 Jun 2011 11:06:07 +0200,
    > > > > Michal Hocko wrote:
    > > > > >
    > > > > > On Thu 09-06-11 10:56:16, Michal Hocko wrote:
    > > > > > > On Thu 09-06-11 08:09:18, Takashi Iwai wrote:
    > > > > > > > At Wed, 8 Jun 2011 19:48:55 +0200,
    > > > > > [...]
    > > > > > > > Thanks, that's helpful.
    > > > > > > > As a quirk solution, could you try to pass model=auto option to
    > > > > > > > snd-hda-intel module?
    > > > > > >
    > > > > > > Headphones work now but speakers are quite... I have tried to play
    > > > > > > with Headphone and Speaker controls in alsamixer but no changes.
    > > > > > >
    > > > > > > Here is what I get in logs when the module is loaded:
    > > > > > > [ 5320.360277] HDA Intel 0000:00:1b.0: PCI INT A disabled
    > > > > > > [ 5326.920247] HDA Intel 0000:00:1b.0: power state changed by ACPI to D0
    > > > > > > [ 5326.920262] HDA Intel 0000:00:1b.0: power state changed by ACPI to D0
    > > > > > > [ 5326.920279] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
    > > > > > > [ 5326.920375] HDA Intel 0000:00:1b.0: irq 42 for MSI/MSI-X
    > > > > > > [ 5326.920405] HDA Intel 0000:00:1b.0: setting latency timer to 64
    > > > > > > [ 5326.981085] input: HDA Intel Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input18
    > > > > > > [ 5326.981262] input: HDA Intel Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input19
    > > > > > > [ 5326.987934] input: HDA Intel Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input20
    > > > > > >
    > > > > > > [maybe not important but input numbers are increasing for every new load]
    > > > > > >
    > > > > > > There is another strange thing. After I stop mplayer and wait for some
    > > > > > > time (~1min) I can hear a "click" sound and then there is no sound at
    > > > > > > all... If I start mplayer in the meantime it just works...
    > > > > > > If I try to remove the module and load it again then things work and stop
    > > > > > > working after first playback again.
    > > > > >
    > > > > > And I have just found out that I do not have to start any playback to
    > > > > > see this. It is sufficient to load the module and wait a minute and
    > > > > > there is no sound at all (both from speakers or headphones).
    > > > >
    > > > > OK, could you give alsa-info.sh outputs at both working and
    > > > > non-working states?
    > > >
    > > > Sure. Attached. The only change seems to be:
    > > > Node 0x02 [Audio Output] wcaps 0x11: Stereo
    > > > Device: name="ALC262 Analog", type="Audio", device=0
    > > > - Converter: stream=5, channel=0
    > > > + Converter: stream=0, channel=0
    > >
    > > This is OK. It shows that the converter was assigned once to this
    > > stream when you played back a sound before power-save.
    > >
    > > As long as the codec registers show the same value, it's not obviously
    > > what went wrong. The symptom sounds like a resume issue. If so,
    > > S3/S4 might show the same problem.
    > >
    > > BTW, does my patch fix the problem when you load without model=auto?
    >
    > I have just booted to the rc2 with the patch (https://lkml.org/lkml/2011/6/9/25)
    > and it looks it didn't solve the problem. Playback works only from
    > speakers when headphones are not plugged in - no sound if plugged in.

    So, the auto-mute now works but now the headphone doesn't work.
    Weird... Maybe the same reason the speaker doesn't work with
    auto-mode. I saw that the only one converter keeps the stream in your
    alsa-info.sh output although multiple converters (0x02, 0x03, 0x06)
    should be used simultaneously.

    > See alsa-info.txt-fresh-boot. Same thing happens if I
    > modprobe -r snd-hda-intel and then load it again (without any parameters).
    >
    > > If yes, does the problem appear with it? I.e. is the silence problem
    > > specific to model=auto or not?
    >
    > If I try to modproble with model=auto I get headphones working but not
    > output from speakers. Have a look at alsa-info.txt-modprobe_auto.

    For testing, just copy 2.6.39/sound/pci/*.[ch] into 3.0 tree and
    rebuild. Does it work as expected? If you have a good-working
    reference, please take alsa-info.sh output while playing back a
    stream.

    Note that the one-minute thing happens only when you unplug AC cable,
    supposedly. Or, simply write some value (in seconds) to
    /sys/modules/snd_hda_intel/parameters/powersave and access the device
    once (either mixer or PCM) to activate the power-saving mode.


    thanks,

    Takashi


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