Booted into recovery mode via grub and the sound worked as expected. Then I booted normally and the sound works again. So as far as I am concerned this bug can be closed. I'm not sure if that something I can/should do though.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1367879 Title: AlsaMixer missing master channel no sound Status in “alsa-driver” package in Ubuntu: New Bug description: Yesterday (9/09/2014) I updated Ubuntu base via Software Updater and now my sound does not work out of built in laptop speakers or the headphone jack. The Sound Settings (unity-control-center sound) does not show any devices. AlsaMixer, after F5 (show all) has 2 channels I can change PCM and Digital, I swear there used to also be a master channel (and maybe others) before. !!ALSA/HDA dmesg !!-------------- [ 32.107581] rtl8188ee: Using firmware rtlwifi/rtl8188efw.bin [ 32.110126] snd_hda_intel 0000:00:1b.0: irq 44 for MSI/MSI-X [ 32.133993] ppdev: user-space parallel port driver -- [ 33.056274] systemd-udevd[493]: Error calling EVIOCSKEYCODE: Invalid argument [ 33.121275] hda-intel 0000:00:1b.0: Codec #0 probe error; disabling it... [ 33.317093] init: failsafe main process (756) killed by TERM signal -- [ 33.410581] rtlwifi: wireless switch is on [ 33.437669] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input17 [ 33.437748] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input16 [ 33.437810] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input15 [ 33.454987] Linux video capture interface: v2.00 More info: http://askubuntu.com/questions/522277/no-sound-after-ubuntu-base-update http://www.alsa-project.org/db/?f=cbf6b64acdde8c2f2d3a24cae453b4f2817e8a1e To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1367879/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
