Hello, The headphone jack is documented as broken and i was wondering if someone could help following a few tests I carried out with two identical laptops, one running the stock bios and the other corebooted.
When unplugged the value is always value = 0x0 and when plugged the value changes to value = 0x80000000. When docked the value on the stock bios gets updated but not in coreboot. When using the headphone it gets updated but no sound is output. STOCK BIOS - Headphone sudo hda-verb /dev/snd/hwC1D0 0x15 GET_PIN_SENSE 0 nid = 0x15, verb = 0xf09, param = 0x0 value = 0x0 = Unplugged sudo hda-verb /dev/snd/hwC1D0 0x15 GET_PIN_SENSE 0 nid = 0x15, verb = 0xf09, param = 0x0 value = 0x80000000 = Plugged **Sound Works** COREBOOT - Headphone sudo hda-verb /dev/snd/hwC1D0 0x15 GET_PIN_SENSE 0 nid = 0x15, verb = 0xf09, param = 0x0 value = 0x0 = Unplugged sudo hda-verb /dev/snd/hwC1D0 0x15 GET_PIN_SENSE 0 nid = 0x15, verb = 0xf09, param = 0x0 value = 0x80000000 = Plugged **Sound does not work** STOCK BIOS - Docked [Headphone jack on the dock] sudo hda-verb /dev/snd/hwC1D0 0x16 GET_PIN_SENSE 0 nid = 0x16, verb = 0xf09, param = 0x0 value = 0x0 = Unplugged sudo hda-verb /dev/snd/hwC1D0 0x16 GET_PIN_SENSE 0 nid = 0x16, verb = 0xf09, param = 0x0 value = 0x80000000 = Plugged COREBOOT - Docked [Headphone jack on the dock] sudo hda-verb /dev/snd/hwC1D0 0x16 GET_PIN_SENSE 0 nid = 0x16, verb = 0xf09, param = 0x0 value = 0x0 = Unplugged hda-verb /dev/snd/hwC1D0 0x16 GET_PIN_SENSE 0 nid = 0x16, verb = 0xf09, param = 0x0 value = 0x0 = Plugged but not updated!!! ONLY the MIC is detected and enabled sudo hda-verb /dev/snd/hwC1D0 0x19 GET_PIN_SENSE 0 nid = 0x19, verb = 0xf09, param = 0x0 value = 0x0 = unplugged sudo hda-verb /dev/snd/hwC1D0 0x19 GET_PIN_SENSE 0 nid = 0x19, verb = 0xf09, param = 0x0 value = 0x80000000 = Plugged and Updated!!! When docked the mic is enabled by default but headphone is not detected. Strangely if i plug another headphone in the laptop headphone jack, the dock headphones start working! Could it be that the file https://github.com/coreboot/coreboot/blob/master/src/mainboard/lenovo/t440p/hda_verb.c is missing the info about the jack being a combo port just like in the t520 https://github.com/rockchip-linux/coreboot/blob/master/src/mainboard/lenovo/t520/hda_verb.c _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org
