Ubuntu
linux package

  1. Bug #1447909
  2. Comment #29

Comment 29 for bug 1447909

Revision history for this message
Hui Wang (hui.wang) wrote :

@mmifas,

Thank you for your testing result, and It looks like the headphone (0x21) can't detect the plug/unplug. I have no idea why this happened.

I already asked for help from Realtek technical expert, he suggested we turn on the hidden register (0x20), then generate an alsa-info.txt.

To do so, please follow the steps as below:

1. sudo echo 1 > /sys/modules/snd_hda_codec/parameters/dump_coef

2. generate a new alsa-info.txt and upload it to launchpad. (refer to #14).

Thanks.