Public bug reported: Binary package hint: pulseaudio
In Ubuntu 9.04, the 5.1 sound worked properly, but after installing 9.10 (i386), some speakers are too silent. After startup, the front speakers are always set to volume 0, with alsamixer I can turn them up. Then they will have proper volume until *reboot*. After re-login, the volumes are changed again, but front speakers are still okay. The LFE and center speakers do play sound but they are way too silent. Even if I turn the subwoofer setting in the Sound preferences dialog to maximum AND the LFE setting in alsamixer to maximum, the subwoofer and center speakers are barely hearable. Workaround for the subwoofer: Change the Device Profile in the Sound Preferences to another Profile and then back again. After this, the subwoofer and center speakers are good. amixer does not show any difference after this. But for each new application that plays sound this has to be repeated. When playing music, this has to be repeated after each song... The tricks from Pulseaudio FAQ do not help. System: >lspci Audio device: nVidia Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio (rev a1) >cat /proc/asound/cards 0 [NVidia ]: HDA-Intel - HDA NVidia HDA NVidia at 0xfcf78000 irq 20 Versions: Kernel: 2.6.31-14-generic-pae alsa-base: 1.0.20+dfsg-1ubuntu5 pulseaudio: 1:0.9.19-0ubuntu4 Interesting syslog messages: Nov 13 10:38:19 x4pc pulseaudio[2114]: alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! Nov 13 10:38:19 x4pc pulseaudio[2114]: alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers. Nov 13 10:38:19 x4pc pulseaudio[2114]: alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail. Nov 13 10:38:22 x4pc pulseaudio[2114]: ratelimit.c: 14 events suppressed Nov 13 10:38:28 x4pc pulseaudio[2114]: ratelimit.c: 3 events suppressed Nov 13 10:41:06 x4pc pulseaudio[2114]: ratelimit.c: 2 events suppressed Please give me a hint how to debug this further. ProblemType: Bug Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: VT1708B Analog [VT1708B Analog] Subdevices: 1/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: x4 2605 F...m pulseaudio /dev/snd/pcmC0D0c: x4 2605 F...m pulseaudio /dev/snd/controlC0: x4 2605 F.... pulseaudio Card0.Amixer.info: Card hw:0 'NVidia'/'HDA NVidia at 0xfcf78000 irq 20' Mixer name : 'VIA VT1708B 8-Ch' Components : 'HDA:1106e721,10438345,00100100' Controls : 34 Simple ctrls : 18 Date: Fri Nov 13 12:30:16 2009 DistroRelease: Ubuntu 9.10 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5) NonfreeKernelModules: nvidia Package: pulseaudio 1:0.9.19-0ubuntu4 ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-14.48-generic-pae SourcePackage: pulseaudio Uname: Linux 2.6.31-14-generic-pae i686 XsessionErrors: (gnome-settings-daemon:2623): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed (gnome-settings-daemon:2623): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed (nautilus:2719): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed (polkit-gnome-authentication-agent-1:2776): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed (gnome-panel:2718): Gdk-WARNING **: /build/buildd/gtk+2.0-2.18.3/gdk/x11/gdkdrawable-x11.c:952 drawable is not a pixmap or window ** Affects: pulseaudio (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 -- nVidia MCP78S-snd_hda_intel: surround speaker volumes irrational https://bugs.launchpad.net/bugs/481860 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs