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Dear all, I have a very annoying sound problem on my computer that I'm unable to solve. I asked in multiple forums but I never found the solution. I had the same issue in two distributions, first in Ubuntu and now in Fedora. My computer used to work fine with Ubuntu, but after a system upgrade the sound stopped working. I moved to Fedora 21 because I couldn't find a solution and, surprise, I had the same issues. The problem is that the sound of my Fedora mutes some minutes after using voice IP (Skype for instance) or watching videos via my browser (Firefox or Chrome). The time with both sound and application working varies. If I reboot, I have sound again. A Skype conversation stops the sound, watching youtube stops the sound. However, the microphone continues working. A secondary effect of this problem is that once the sound is muted, the browser videos (from YouTube for instance) are not showing well. They are usually shown in slow-motion (not always). I tried multiple things. alsamixer (automute is disable) and pavucontrol settings are the same with and without the system muted. Killing pulseaudio and restarting pulseaudio doesn't work. Re-installing alsa doesn't work either. With the sound muted: - it's only pulseaudio using the sound device. fuser -v /dev/snd/* USER PID ACCESS COMMAND /dev/snd/controlC0: ****** 19002 F.... pulseaudio - aplay seems to play a wav sample but without output sound aplay Yamaha-TG100-Whistle-C5.wav Playing WAVE 'Yamaha-TG100-Whistle-C5.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo underrun!!! (at least 1054.052 ms long) underrun!!! (at least 1073.542 ms long) - I have correctly set the default fragment number and buffer size in PulseAudio. - I have removed the alsa-plugins-pulseaudio to discard the pulseaudio responsability, and I still had the same sound crash. So I guess it's alsa who is responsible (?) - I have also tried using alternative desktops (I'm using gnome3) like xfce or cinnamon but it didn't work. It happened the same. I have my fedora 21, with kernel 4.1.13-100.fc21.x86_64, my video card is NVIDIA GeForce 9500 GT (using free drivers) and following I give you details of my sound system. /sbin/lsmod | grep snd snd_hda_codec_realtek 90112 0 snd_hda_codec_generic 73728 2 snd_hda_codec_realtek snd_hda_intel 32768 4 snd_hda_controller 32768 1 snd_hda_intel snd_hda_codec 110592 4 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller snd_hda_core 36864 4 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec,snd_hda_controller snd_hwdep 16384 1 snd_hda_codec snd_seq 69632 0 snd_seq_device 16384 1 snd_seq snd_pcm 118784 3 snd_hda_codec,snd_hda_intel,snd_hda_controller snd_timer 32768 2 snd_pcm,snd_seq snd 81920 17 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device soundcore 16384 1 snd lspci | grep Audio 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05) Hardware devices: aplay -l **** List of PLAYBACK Hardware Devices **** card 0: MID [HDA Intel MID], device 0: ID 889 Analog [ID 889 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: MID [HDA Intel MID], device 1: ID 889 Digital [ID 889 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 modinfo snd-hda-intel filename: /lib/modules/4.1.13-100.fc21.x86_64/kernel/sound/pci/hda/snd-hda-intel.ko.xz description: Intel HDA driver license: GPL depends: snd-hda-controller,snd-hda-codec,snd-pcm,snd intree: Y vermagic: 4.1.13-100.fc21.x86_64 SMP mod_unload signer: Fedora kernel signing key sig_key: F3:54:63:EF:F6:27:ED:52:16:79:72:BC:8F:3C:71:2E:D1:C9:E4:F0 sig_hashalgo: sha256 parm: index:Index value for Intel HD audio interface. (array of int) parm: id:ID string for Intel HD audio interface. (array of charp) parm: enable:Enable Intel HD audio interface. (array of bool) parm: model:Use the given board model. (array of charp) parm: position_fix:DMA pointer read method.(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO). (array of int) parm: bdl_pos_adj:BDL position adjustment offset. (array of int) parm: probe_mask:Bitmask to probe codecs (default = -1). (array of int) parm: probe_only:Only probing and no codec initialization. (array of int) parm: jackpoll_ms:Ms between polling for jack events (default = 0, using unsol events only) (array of int) parm: single_cmd:Use single command to communicate with codecs (for debugging only). (bool) parm: enable_msi:Enable Message Signaled Interrupt (MSI) (bint) parm: patch:Patch file for Intel HD audio interface. (array of charp) parm: beep_mode:Select HDA Beep registration mode (0=off, 1=on) (default=1). (array of bool) parm: power_save:Automatic power-saving timeout (in second, 0 = disable). (xint) parm: power_save_controller:Reset controller in power save mode. (bool) parm: align_buffer_size:Force buffer and period sizes to be multiple of 128 bytes. (bint) parm: snoop:Enable/disable snooping (bint) I would like to try to set a particular model for my sound driver in /etc/modprobe.d/sound.conf. But, I don't find anything for the ID of my sound device obtain from alsa-info.sh (Subsystem: 1462:7586) Using a generic options snd_hda_intel model doesn't seem to work. Thanks for any help you can provide me. Cheers, -- Carlos |
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