Commit edbc693b authored by Hui Wang's avatar Hui Wang Committed by Kleber Sacilotto de Souza

ALSA: hda/hdmi - Consider eld_valid when reporting jack event

BugLink: https://bugs.launchpad.net/bugs/1832661

commit 7f641e26 upstream.

On the machines with AMD GPU or Nvidia GPU, we often meet this issue:
after s3, there are 4 HDMI/DP audio devices in the gnome-sound-setting
even there is no any monitors plugged.

When this problem happens, we check the /proc/asound/cardX/eld#N.M, we
will find the monitor_present=1, eld_valid=0.

The root cause is BIOS or GPU driver makes the PRESENCE valid even no
monitor plugged, and of course the driver will not get the valid
eld_data subsequently.

In this situation, we should not report the jack_plugged event, to do
so, let us change the function hdmi_present_sense_via_verbs(). In this
function, it reads the pin_sense via snd_hda_pin_sense(), after
calling this function, the jack_dirty is 0, and before exiting
via_verbs(), we change the shadow pin_sense according to both
monitor_present and eld_valid, then in the snd_hda_jack_report_sync(),
since the jack_dirty is still 0, it will report jack event according
to this modified shadow pin_sense.

After this change, the driver will not report Jack_is_plugged event
through hdmi_present_sense_via_verbs() if monitor_present is 1 and
eld_valid is 0.
Signed-off-by: default avatarHui Wang <hui.wang@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarKhalid Elmously <khalid.elmously@canonical.com>
Signed-off-by: default avatarKleber Sacilotto de Souza <kleber.souza@canonical.com>
parent 2d98dde9
......@@ -1636,9 +1636,11 @@ static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid;
jack = snd_hda_jack_tbl_get(codec, pin_nid);
if (jack)
if (jack) {
jack->block_report = !ret;
jack->pin_sense = (eld->monitor_present && eld->eld_valid) ?
AC_PINSENSE_PRESENCE : 0;
}
mutex_unlock(&per_pin->lock);
snd_hda_power_down_pm(codec);
return ret;
......
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