Special volume keys are not working in the mate desktop

I should further clarify that I mean the extra hardware volume buttons found on top of the normal keys on the laptop.

I can confirm the same behavior with Linux Mint 12 x64.

Hardware volume keys work correctly in Gnome Shell.

In Keyboard Shortcuts, I have:

Volume mute: XF86AudioMute
Volume down: XF86AudioLowerVolume
Volume up: XF86AudioRaiseVolume

I have tried reassigning the Shortcut keys again, with no effect.

In Sound Preferences I have:

Device HDA Intel (Alsa mixer)

In Configuration Editor, there is nothing set for default_mixer_device or default_mixer_tracks.

I tried setting default_mixer_device to alsamixer with no improvement.

I confirmed that the keypress is being sent by running:

xev | sed -n 's/^.*state \([0-9].*\), keycode *\([0-9]\+\) *\(.*\), .*$/keycode \2 = \3, state = \1/p'

I can confirm same problem.
However, in my case, if I switch to GNOME3 the hotkeys work out of the box! Am I missing something?

The source code for Mate isn't on the LinuxMint servers, but if the source on GitHub for mate-settings-daemon is correct, it has pulse disabled in the debian/rules file.

https://github.com/linuxmint/Mate-Packages/blob/master/mate-settings-daemon/debian/rules

DEB_CONFIGURE_EXTRA_FLAGS += \
--libexecdir=/usr/bin \
--disable-static \
--disable-pulse \
--disable-schemas-install \
--enable-polkit

Not 100% sure if this is the cause of the issue, but I'm gonna try to grab the source and switch --disable-pulse to --disable-gstreamer to see if this resolves the bug.

Compiling mate-settings-daemon from the above source and changing the debian/rules to disable-gstreamer doesn't make a difference. I'm going to continue to look to see if I can figure out why they aren't working.

mintmenu shortcut doesnt work too.

This bug is known by the Mate developers as Mate-Desktop-Environment issue #55 ("Problems using keyboard shortcuts"). It was reportedly fixed on 8 December.
https://github.com/perberos/Mate-Desktop-Environment/issues/55

Now we just have to wait until the Mint folks update the corresponding package(s).

The issue is solved in tridex esperimental repository (mate-settings-daemon 1.1.0-4). I hope to have it soon in Mint.

Cannot wait to test the fix.

That would make a nice Xmas present since I really use the volume keys a lot.

I can confirm the fix works.

You'll need to add the following two lines to /etc/apt/sources.list:

deb http://tridex.net/repo/ubuntu/ oneiric main
deb-src http://tridex.net/repo/ubuntu/ oneiric main

And then you'll need to adjust your apt preferences. I adjusted mine to look like the following:

Package: *
Pin: release o=linuxmint
Pin-Priority: 700

Package: *
Pin: origin packages.linuxmint.com
Pin-Priority: 700

Package: *
Pin: release o=Ubuntu
Pin-Priority: 500

Package: *
Pin: origin tridex.net
Pin-Priority: 700

Thank You for the fix!
Any way to know if/when this will make it to official Mint, so that I know when to remove the workaround?

I am new to linux and I have very little experience with the terminal. Can someone explain to me how to use this fix, I am having the same problems and would greatly appreciate all the help I can get.

I would rather not use the work around - when is this expected to be resolved?

This bug is still open, correct?

Is there a better location for updates?