Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.13 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14-rc6-trusty/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- 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/1247630 Title: Dell XPS 13 with ALC275 missing analog and digital playback devices on 13.10 Status in “linux” package in Ubuntu: Incomplete Bug description: I lost audio when upgrading from 12.10 to 13.04 and the issue remained after upgrading to raring (13.10). As you can see, I am missing the Analog and Digital playback devices **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 I am not sure how to begin troubleshooting further as this appears to be a unique situation that the sound troubleshooting guides do not address. Audio Information from running alsa-info.sh http://www.alsa-project.org/db/?f=be3f607e8b27a5c52c445de3748a99c7c3861156 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1247630/+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