I was having issues with microphone input and followed advice here to fix
alsa-base. In doing so I have lost a number of options from
gnome-control-center. Most people with the issue found that reinstalling
ubuntu-desktop helped. However, when I open
gnome-control-center I continue to get the following error:
$ sudo gnome-control-center ** (gnome-control-center:23520): WARNING **: Ignoring launcher landscape-client-settings (missing desktop file) ** (gnome-control-center:23520): WARNING **: Ignoring launcher ubuntuone-installer (missing desktop file)
Prior to reinstalling
ubuntu-desktop, there were more errors (which looked similar) but these two remain. I have also reinstalled
landscape-client and more. Nothing seems to help.
gnome-control-center "cannot find display information", despite the display icon being present.
Running Ubuntu 12.04 on a 2011 Macbook. Thank you in advance for your help.