Comment 7 for bug 454287

Guys, the button can be put back on using these in the console, before KDE
has started running.

echo "loopback=yes" >> /sys/class/sound/hwC0D0/hints
echo 1 >> /sys/class/sound/hwC0D0/reconfig

When your computer starts up, you can do a console login instead of logging
in to KDE, open a sudo bash, and write these commands. After that, type exit
until you are at the console login, give it a minute, it will take you back
to the KDE login screen. Login and check KMix, the button should be there
now.

On 14 June 2010 05:02, browny_amiga <email address hidden> wrote:

> Well? Could you provide help how to activate this feature again? It is
> kind of essential. I have a production system here for audio mixing and
> I hope I did not do a mistake upgrading to lucid.
>
> --
> No Way to Enable Analog Loopback
> https://bugs.launchpad.net/bugs/454287
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “alsa-driver” package in Ubuntu: Won't Fix
>
> Bug description:
> I expected KMix to have a button for enabling Analog Loopback so that I
> could hear what I was recording.
>
> However, I was unable to find any such setting.
>
> ProblemType: Bug
> Architecture: i386
> Date: Sun Oct 18 04:10:56 2009
> DistroRelease: Ubuntu 9.10
> ExecutablePath: /usr/bin/kdeinit4
> NonfreeKernelModules: nvidia
> Package: kdelibs-bin 4:4.3.2-0ubuntu6
> ProcEnviron:
> LANG=en_IN
> SHELL=/bin/bash
> ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
> SourcePackage: kde4libs
> Uname: Linux 2.6.31-14-generic i686
> XsessionErrors: (polkit-gnome-authentication-agent-1:2243): GLib-CRITICAL
> **: g_once_init_leave: assertion `initialization_value != 0' failed
>
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> https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/454287/+subscribe
>