Kai-Heng Feng 1099f48457 ALSA: hda/realtek: Reduce the Headphone static noise on XPS 9350/9360 ... Headphone on XPS 9350/9360 produces a background white noise. The The noise level somehow correlates with "Headphone Mic Boost", when it sets to 1 the noise disappears. However, doing this has a side effect, which also decreases the overall headphone volume so I didn't send the patch upstream. The noise was bearable back then, but after commit 717f43d81a ("ALSA: hda/realtek - Update headset mode for ALC256") the noise exacerbates to a point it starts hurting ears. So let's use the workaround to set "Headphone Mic Boost" to 1 and lock it so it's not touchable by userspace. Fixes: 717f43d81a ("ALSA: hda/realtek - Update headset mode for ALC256") BugLink: https://bugs.launchpad.net/bugs/1654448 BugLink: https://bugs.launchpad.net/bugs/1845810 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20191003043919.10960-1-kai.heng.feng@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>		2019-10-07 03:57:12 +02:00
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ca0132_regs.h
hda_auto_parser.c
hda_auto_parser.h
hda_beep.c
hda_beep.h
hda_bind.c
hda_codec.c
hda_controller_trace.h
hda_controller.c
hda_controller.h
hda_eld.c
hda_generic.c
hda_generic.h
hda_hwdep.c
hda_intel_trace.h
hda_intel.c
hda_intel.h
hda_jack.c
hda_jack.h
hda_local.h
hda_proc.c
hda_sysfs.c
hda_tegra.c
hp_x360_helper.c
Kconfig
Makefile
patch_analog.c
patch_ca0110.c
patch_ca0132.c
patch_cirrus.c
patch_cmedia.c
patch_conexant.c
patch_hdmi.c
patch_realtek.c	ALSA: hda/realtek: Reduce the Headphone static noise on XPS 9350/9360	2019-10-07 03:57:12 +02:00
patch_si3054.c
patch_sigmatel.c
patch_via.c
thinkpad_helper.c