This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1757584 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1757584 Title: Let headset-mode initialization be called on Dell Precision 3930 Status in HWE Next: New Status in linux package in Ubuntu: Incomplete Status in linux-oem package in Ubuntu: Incomplete Bug description: == SRU Justification == [Impact] There is only one audio jack on this machine (codename: zuma-p), so there is only one output device (headphone), then the driver will not generate auto-mute control on this machine, without auto-mute, the headset-mode initialization routine will not be called, as a result, all audio devices can't work (output and input). To fix it, add a dummy lineout on this machine, then there are two output devices (headphone + lineout), the driver will create auto-mute control on this machine finally. Due to the patch conflicts, I prepared two patches, one is for artful+oem, the other is for bionic. [Test Case] plug the headset and play or record the sound on this machine, both playing and recording work well. [Fix] one commit from mainline kernel. [Regression Potential] very low, since this patch only applies to the specific Dell machine Precision 3930. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1757584/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp