On Thu, 04 Jan 2018 17:27:55 +0100, Freaky wrote: > > Hi Takashi, > > we need it to get the headphone output working. Upon unplugging / > replugging we need to check them again (they remain checked, but the output > stops working). The speaker output (onboard speakers) works fine and the > script we run doesn't appear to have any effect on the speaker output at > all. The alsa-info.sh output showed that GPIO[1] is also set, so I wonder how and who sets it. In anyway, could you check whether flipping any such gpio bits turn on / off the headphone and the speaker outputs? Try to toggle it while playing back, such as, hda-verb /dev/snd/hwC1D0 0x01 SET_GPIO_DATA xxx where xxx is the value to be written (0x00, 0x02, 0x04, 0x06, etc). > Currently use a python script generated by the HDA Analyzer script that we > run every 5 seconds from boot. Pasted the script below. We run it every 5 > seconds to ensure audio will work after replugging the headphones (although > it might incur a small delay then of course). I don't notice any hick-ups > in audio playback because of the script firing every 5 seconds. > > There's no acpid running from which we could detect the plug event. Using a > system based on Fedora 24. Have watched dbus-monitor (--sytem), but see no > events there upon (un)plugging the headphones which we could use as trigger. The headphone jack detection on HD-audio is usually done via HD-audio codec unsolicited events. You can check "Headphone Jack" ALSA control element (e.g. watch the output of "amixer contents"). Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
