At Wed, 24 Jun 2015 10:46:33 +0200,
David Henningsson wrote:
>
> Thinkpad X250, when attached to a dock, has two headphone outs but
> no line out. Make sure we don't try to turn this into one headphone
> and one line out (since that disables the headphone amp on the dock).
>
> Alsa-info at
> http://www.alsa-project.org/db/?f=36f8764e1d782397928feec715d0ef90dfddd4c1
>
> Cc: [email protected]
> Signed-off-by: David Henningsson <[email protected]>
This is one of fixes I had in mind (and asked for testing in bugzilla
kernel.org report). One drawback by this is that the auto-mute
*between* the headphones won't work like before. If one has expected
it, then this can be seen as a regression.
Another fix was to change this as a proper line-out. This will keep
the current auto-mute behavior.
OTOH, dealing both jacks equally is also not bad, per se.
Takashi
> ---
> sound/pci/hda/patch_realtek.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
> index 431a20b..8e02cdf 100644
> --- a/sound/pci/hda/patch_realtek.c
> +++ b/sound/pci/hda/patch_realtek.c
> @@ -4511,6 +4511,7 @@ enum {
> ALC255_FIXUP_HEADSET_MODE_NO_HP_MIC,
> ALC293_FIXUP_DELL1_MIC_NO_PRESENCE,
> ALC292_FIXUP_TPT440_DOCK,
> + ALC292_FIXUP_TPT440_DOCK2,
> ALC283_FIXUP_BXBT2807_MIC,
> ALC255_FIXUP_DELL_WMI_MIC_MUTE_LED,
> ALC282_FIXUP_ASPIRE_V5_PINS,
> @@ -4960,6 +4961,12 @@ static const struct hda_fixup alc269_fixups[] = {
> .chain_id = ALC269_FIXUP_HEADSET_MODE
> },
> [ALC292_FIXUP_TPT440_DOCK] = {
> + .type = HDA_FIXUP_FUNC,
> + .v.func = alc269_fixup_pincfg_no_hp_to_lineout,
> + .chained = true,
> + .chain_id = ALC292_FIXUP_TPT440_DOCK2
> + },
> + [ALC292_FIXUP_TPT440_DOCK2] = {
> .type = HDA_FIXUP_PINS,
> .v.pins = (const struct hda_pintbl[]) {
> { 0x16, 0x21211010 }, /* dock headphone */
> --
> 1.9.1
>
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