As the title says, my sound has stopped working after a reboot. This is a new system (one-week old hardware, fresh install of Kubuntu 15.10). Linux audio is quite complicated, and I've tried my best to search forums and troubleshoot, but to no avail. Currently, Phonon Audio and Video can't detect any of my hardware devices and drivers, just lists a "Dummy Output". My backend is Phonon GStreamer.
This is what I've done so far to try to solve this problem.
Installed all recent updates.
Checked if my sound card is found by Kubuntu:
$ aplay -l aplay: device_list:268: no soundcards found...
Checked if my sound card is detected by Kubuntu/ALSA:
$ echo "Sound cards recognized by the system:"; lspci -nn | grep --color=none '\[04[80][13]\]'; echo "Sound cards recognized by ALSA:"; lspci -nn | grep '\[04[80][13]\]' | while read line; do lspci -nnk | grep -A 3 '\[04[80][13]\]' | grep -e 'Kernel modules: ..*' -e '\[04[80][13]\]' | grep --color=none -F "$line"; done; echo "Sound cards recognized by ALSA, and activated:"; lspci -nn | grep '\[04[80][13]\]' | while read line; do lspci -nnk | grep -A 3 '\[04[80][13]\]' | grep -e 'Kernel drivers in use: ..*' -e '\[04[80][13]\]' | grep --color=none -F "$line"; done Sound cards recognized by the system: 00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31) Sound cards recognized by ALSA: 00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31) Sound cards recognized by ALSA, and activated: 00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31)
Checked if my sound card is enabled:
$ lspci -nn | grep '\[04[80][13]\]' 00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31)
Longer output:
00:1f.3 Audio device: Intel Corporation Sunrise Point-H HD Audio (rev 31) Subsystem: ASUSTeK Computer Inc. Device 86c7 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Latency: 32 Interrupt: pin A routed to IRQ 126 Region 0: Memory at d1040000 (64-bit, non-prefetchable) [size=16K] Region 4: Memory at d1020000 (64-bit, non-prefetchable) [size=64K] Capabilities: Kernel driver in use: snd_hda_intel
I also made sure in my BIOS that the sound card is enabled.
Removed, purged and reinstalled
alsa-base
,alsa-utils
,pulseaudio
,linux-sound-base
.Upgraded to latest ALSA-drivers (https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS) ... currently have the package
oem-audio-hda-daily-dkms_0.201603112217~ubuntu15.10.1_all.deb
installed.Added myself to the proper groups:
$ sudo usermod -aG `cat /etc/group | grep -e '^pulse:' -e '^audio:' -e '^pulse-access:' -e '^pulse-rt:' -e '^video:' | awk -F: '{print $1}' | tr '\n' ',' | sed 's:,$::g'` `whoami`
None of this so far has worked! Here's my asla-info (http://www.alsa-project.org/db/?f=1ae266957dabeba501ddfea2ba68f9b1fd99f304).
I appreciate all of you in helping me out with this problem.
sudo aplay -l
gave me the same output as before:aplay: device_list:268: no soundcards found...