Red Hat Bugzilla – Bug 861511
External sound card (USB) does not play sound under kernel 3.5.4-1
Last modified: 2013-03-12 15:48:21 EDT
Description of problem:
Since upgrading to kernel 3.5.4-1, no sound gets played, from any source I tried. All sound settings appear to be correct. When I boot into 3.5.3-1, the sound is present as expected. There is no visible change in sound settings after the boot into the other kernel.
Version-Release number of selected component (if applicable): Kernel 3.5.4-1
How reproducible: The bug appears after each boot with this kernel version. It does not appear after boot with an older version.
Steps to Reproduce:
1. Select kernel 3.5.4-1 from the GRUB screen when booting
2. Copy a known-good wav file called mytestfile.wav to the current directory
3. aplay -vv mytestfile.wav
(can also be reproduced with sound from any other source, using any playback software, or with the command speaker-test -c 2 -t wav)
There is no sound audible
There are no error messages of any kind
The output of aplay is as expected for this type of file, listing format, bitrate, etc.
There is sound audible
There are no error messages
The sound card is model Onkyo Wavio SE-U55SX.
The system is a custom-built desktop setup, based on a i7 930 CPU.
The settings visible in Phonon, alsamixer and pavucontrol appear correct: nothing is muted, the correct playback device is selected, etc.
The sound card's model is correctly recognized in /proc/sound/cards.
The output of sudo lsmod | grep snd is:
snd_usb_audio 134325 2
snd_usbmidi_lib 24728 1 snd_usb_audio
snd_hwdep 17650 1 snd_usb_audio
snd_rawmidi 29531 1 snd_usbmidi_lib
snd_seq 64844 0
snd_seq_device 14136 2 snd_seq,snd_rawmidi
snd_pcm 97292 1 snd_usb_audio
snd_page_alloc 18101 1 snd_pcm
snd_timer 28690 2 snd_pcm,snd_seq
snd 79242 12 snd_usb_audio,snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_usbmidi_lib,snd_seq_device
soundcore 14491 1 snd
Another user seems to have the same problem with a different sound card model, again USB-based, see http://ask.fedoraproject.org/question/2558/no-sound-after-update-to-kernel-354-1-fedora-17?comment=4581#comment-4581.
The bug seems to have been submitted in parallel to the Kernel bug tracker by another user, https://bugzilla.kernel.org/show_bug.cgi?id=48051. There seems to be a patch for it, https://lkml.org/lkml/2012/9/27/172, not yet included in any kernel version. Not sure if I should close this one (or if it is indeed the same bug).
According to the upstream bug, this was fixed in 3.6.