You might be experiencing an issue caused by the way Windows handles powering off the sound card. Restarting from Windows yields a non-functioning sound card in Linux. A full shutdown from Windows and subsequent power-on will allow sound to work in Linux.
This bug report is for the UX391UA and has been confirmed as fixed - please open a new report specific to your issue if required.
You might be experiencing an issue caused by the way Windows handles powering off the sound card. Restarting from Windows yields a non-functioning sound card in Linux. A full shutdown from Windows and subsequent power-on will allow sound to work in Linux.
This bug report is for the UX391UA and has been confirmed as fixed - please open a new report specific to your issue if required.