It seems that 64_micmute.patch is the culpret... this patch adds support
for the microphone mute button, which is fine if you have an input
stream. If you don't have an input stream, the side effect of this
patch is to disable _all_ the buttons, including the ones affecting
output volume - see this hunk:
@@ -1203,13 +1256,18 @@
stream = manager->priv->stream;
if (stream == NULL)
return;
+ input_stream = manager->priv->input_stream;
+ if (input_stream == NULL)
+ return;
Fixing this resolves the issue for me.
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https://bugs.launchpad.net/bugs/1248368
Title:
Volume up/down keyboard keys stoped working after gnome-settings-
daemon package update
Status in “gnome-settings-daemon” package in Ubuntu:
Expired
Bug description:
After updating gnome-settings-daemon from version 3.4.2-0ubuntu0.6.4
to version 3.4.2-0ubuntu0.6.5 the keyboard volume keys are not
working.
Pressing the keys does not produce the volume OSD, neither the volume
is increased or decreased.
The following packages were updated by synaptic:
cjs (2.0.0-20131021020602-precise) to 2.0.0-20131105020703-precise
duplicity (0.6.18-0ubuntu3.2) to 0.6.18-0ubuntu3.3
gimp (2.8.6-0precise1~ppa) to 2.8.8-0precise0~ppa
gimp-data (2.8.6-0precise1~ppa) to 2.8.8-0precise0~ppa
gnome-settings-daemon (3.4.2-0ubuntu0.6.4) to 3.4.2-0ubuntu0.6.5
libcjs0c (2.0.0-20131021020602-precise) to 2.0.0-20131105020703-precise
libgimp2.0 (2.8.6-0precise1~ppa) to 2.8.8-0precise0~ppa
xkb-data (2.5-1ubuntu1.4) to 2.5-1ubuntu1.5
xserver-common-lts-quantal (2:1.13.0-0ubuntu6.3~precise1) to
2:1.13.0-0ubuntu6.5~precise1
xserver-xorg-core-lts-quantal (2:1.13.0-0ubuntu6.3~precise1) to
2:1.13.0-0ubuntu6.5~precise1
I suspected that the bug might be in xkb-data and/or gnome-settings-daemon.
Downgrading the xkb-data package the previous version (2.5-1ubuntu1.4) didn't
work.
Downgrading the gnome-settings-daemon package to the previous version
(3.4.2-0ubuntu0.6.4) worked!
Afterwords I upgraded xkb-data to the latest version (2.5-1ubuntu1.5) and
left gnome-settings-daemon package to the previous version
(3.4.2-0ubuntu0.6.4). And this works!!!
In conclusion there is some regression introduced into gnome-settings-
daemon 3.4.2-0ubuntu0.6.5.
lsb_release -rd
Description: Ubuntu 12.04.3 LTS
Release: 12.04
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