The "Sound Settings" button on the "Sound Menu" indicator of the "Indicator Plugin" on the Xfce4-Panel will not open. This button should open pavucontrol
, which I can launch from the terminal or Whisker Menu just fine. I just can't launch it from the Panel, which is a real pain. Is there any way I can see a log pertaining to the Panel or Indicator Plugin so I can discover what the issue is?
Update:
Here's my session environment:
XDG_SESSION_ID=c2
SESSION=xfce
UPSTART_SESSION=unix:abstract=/com/ubuntu/upstart-session/1000/1983
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
SESSION_MANAGER=local/User-Xubuntu:@/tmp/.ICE-unix/2156,unix/User-Xubuntu:/tmp/.ICE-unix/2156
DESKTOP_SESSION=xfce
XDG_SESSION_TYPE=x11
GDMSESSION=xfce
SESSIONTYPE=
XDG_SESSION_DESKTOP=xfce
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-dIizG8qAqw
Yes, the indicator plugin log can be found in
$HOME/.cache
directory.Log file location
The file location may be slightly changed in newer releases of Xubuntu. In Xubuntu 15.04, the location is
$HOME/.cache/xfce4-indicator-plugin.log
and the example content as below.The older log files are found at
$HOME/.cache/upstart
and kept separately as Gzip compressed files for each type of indicator. I had confirmed this for 14.04, but not sure whether this is still true for 15.04 and newer releases, because I only ran above output from Live USB.In other words, the older log files are only found in Xubuntu that has been installed to a local machine. The Gzip compressed files are likely not to exist on a Live system.
Sound Settings do nothing
Based on the output from
env | grep SESSION
, the session isxfce
for the current user. That is the reason why the "Sound Settings" does nothing.This is also a known issue affecting 14.04 release, which was filed as Bug #1359249 on Launchpad in late 2014. Typical users wouldn't notice this, unless the user selected "Xfce Session" instead of "Xubuntu Session" before logging in to the Desktop.
The workaround
Select "Xubuntu Session" before logging in to the Desktop. Then, on Xfce panel, click the Indicator Sound icon > Sound Settings... to open the Volume Control window as usual.