Your message dated Sat, 26 Jan 2013 18:04:50 +0100 with message-id <1359219890.9989.7.camel@shepard> and subject line Re: hotplugging devices doesn't work completely if PA was started during earlier X-session has caused the Debian Bug report #593952, regarding hotplugging devices doesn't work completely if PA was started during earlier X-session to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact ow...@bugs.debian.org immediately.) -- 593952: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=593952 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
--- Begin Message ---Package: pulseaudio Version: 0.9.21-3 Severity: normal Hi, To work around #593746 [1] I changed /usr/bin/start-pulseaudio-x11 like this $ egrep -v '(^#|^$)' /usr/bin/start-pulseaudio-x11 set -e [ -z "$PULSE_SERVER" ] if [ "$XAUTHORITY" ]; then cp "$XAUTHORITY" "$HOME/.Xauthority" export XAUTHORITY="$HOME/.Xauthority" fi /usr/bin/pulseaudio --start "$@" if [ x"$DISPLAY" != x ] ; then /usr/bin/pactl load-module module-x11-publish "display=$DISPLAY" > /dev/null /usr/bin/pactl load-module module-x11-cork-request "display=$DISPLAY" > /dev/null if [ x"$SESSION_MANAGER" != x ] ; then /usr/bin/pactl load-module module-x11-xsmp "display=$DISPLAY session_manager=$SESSION_MANAGER" > /dev/null fi fi and to work around #593881 [2] I executed this $ sudo adduser $USERNAME audio Adding user `alexander' to group `audio' ... Adding user alexander to group audio Done. I verified that both workarounds do their job: * PA now stores it's properties to the X root window even if it was started during an earlier X-session: $ ps -C pulseaudio -C x-session-manager -f UID PID PPID C STIME TTY TIME CMD 1000 20966 1 0 16:19 ? 00:00:00 /usr/bin/pulseaudio --start 1000 21109 21076 0 16:20 ? 00:00:00 x-session-manager $ xprop -root | grep -q ^PULSE_SERVER $ echo $? 0 * and I can use a hotplugged audio device instantly: $ aplay -l **** List of PLAYBACK Hardware Devices **** [ ... my internal sound card ... ] card 1: default [C-Media USB Headphone Set ], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 So theoretically I should now be able to just plug my USB sound card in, fire up `gnome-volume-control' and switch the output to the new sound card. However this actually only works if I'm in the same X-session where PA was started. During any later X-session PA will recognize the new card correctly but fail to detect its sinks and sources: $ pacmd list-cards Welcome to PulseAudio! Use "help" for usage information. >>> 2 card(s) available. index: 1 [ ... my internal sound card ... ] index: 3 name: <alsa_card.usb-0d8c_C-Media_USB_Headphone_Set-00-default> driver: <module-alsa-card.c> owner module: 24 properties: alsa.card = "1" alsa.card_name = "C-Media USB Headphone Set " alsa.long_card_name = "C-Media USB Headphone Set at usb-0000:00:0b.0-5, full speed" alsa.driver_name = "snd_usb_audio" device.bus_path = "pci-0000:00:0b.0-usb-0:5:1.0" sysfs.path = "/devices/pci0000:00/0000:00:0b.0/usb2/2-5/2-5:1.0/sound/card1" udev.id = "usb-0d8c_C-Media_USB_Headphone_Set-00-default" device.bus = "usb" device.vendor.id = "0d8c" device.vendor.name = "C-Media Electronics, Inc." device.product.id = "000c" device.product.name = "Audio Adapter" device.serial = "0d8c_C-Media_USB_Headphone_Set" device.form_factor = "headphone" device.string = "1" device.description = "Audio Adapter" module-udev-detect.discovered = "1" device.icon_name = "audio-headphones-usb" profiles: output:analog-stereo: Analog Stereo Output (priority 6000) output:analog-stereo+input:analog-mono: Analog Stereo Output + Analog Mono Input (priority 6001) output:iec958-stereo: Digital Stereo Duplex (IEC958) (priority 5500) output:iec958-stereo+input:analog-mono: Digital Stereo (IEC958) Output + Analog Mono Input (priority 5501) input:analog-mono: Analog Mono Input (priority 1) off: Aus (priority 0) active profile: <output:analog-stereo+input:analog-mono> >>> $ So I thought, maybe it's another environmental variable (like in #593746[1]) which isn't correct anymore during the later X-session, so I did this: $ pulseaudio --kill; sleep 1; env --ignore-environment DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY HOME=$HOME start-pulseaudio-x11 $ tr '\0' '\n' < /proc/`pidof pulseaudio`/environ HOME=/home/alexander DISPLAY=:0.0 XAUTHORITY=/home/alexander/.Xauthority PWD=/home/alexander LD_BIND_NOW=1 But surprisingly hotplugging worked. So it can't be some environmental variable which has changed. My next thought was that maybe the connection to some session service like Dbus wasn't valid anymore during the new X-session. So I logged out of GNOME and logged into a VT and restarted pulseaudio: $ pulseaudio --kill; sleep 1; pulseaudio --start $ But even after several logouts/logins to the VT, hotplugging still worked, although PA was started during an earlier session and there were no additional services running: $ ps -fu 1000 UID PID PPID C STIME TTY TIME CMD 1000 24030 1 0 16:51 ? 00:00:00 pulseaudio --start 1000 24405 24384 0 16:52 tty2 00:00:00 -bash 1000 24559 24405 0 16:52 tty2 00:00:00 ps -fu 1000 Since I'm really running out of ideas now, I'm filing this bug report. Maybe someone out there is more clever than I am. Please report if you can confirm that hotplugging doesn't work completely (i.e. including sinks/sources) if PA was started during an earlier X-session, or if this is some problem which only occurs under rare circumstances. If you need more information/additional tests, just ask! Thanks for your work! Alexander Kurtz [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=593746 [2] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=593881signature.asc
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--- Begin Message ---Version: 2.0-6 Hi, I haven't experienced this problem in a while now even though I'm using external sound cards on a daily basis now. I'm therefore closing this bug now. Best regards Alexander Kurtzsignature.asc
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