Messages in this thread Patch in this message |  | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 10/29] ALSA: hda - Sleep for 10ms after entering D3 on Conexant codecs | Date | Tue, 21 Aug 2018 08:21:03 +0200 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Park Ju Hyung <qkrwngud825@gmail.com>
commit f59cf9a0551dd954ad8b752461cf19d9789f4b1d upstream.
On rare occasions, we are still noticing that the internal speaker spitting out spurious noises even after adding the problematic codec to the list.
Adding a 10ms artificial delay before rebooting fixes the issue entirely.
Patch for Realtek codecs also adds the same amount of delay after entering D3.
Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- sound/pci/hda/patch_conexant.c | 1 + 1 file changed, 1 insertion(+)
--- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -225,6 +225,7 @@ static void cx_auto_reboot_notify(struct snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3); snd_hda_codec_write(codec, codec->core.afg, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D3); + msleep(10); } static void cx_auto_free(struct hda_codec *codec)
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