Question: On my Xubuntu 13.04 installation, when the sound is turned up to high levels (>50%), it begins to (randomly?) fluctuate between loud and quiet. In pavucontrol, the port setting is fluctuating between "Analogue output" and "Headphones" (I'm using desktop speakers plugged into the integrated audio line out).

Any ideas?

Answer: 
The emacs bindings are specified at /usr/share/themes/Emacs/gtk-2.0-key/gtkrc
You can also add a bindings in ~/.config/gtk-3.0/gtk.css

Select all would be something like this:

```
bind "<ctrl>h" { "move-cursor" (buffer-ends, -1, 0)
                 "move-cursor" (buffer-ends,  1, 1) };

```

I haven't found a way to bind it to C-x h, though.
<http://www.emacswiki.org/emacs/EmacsNewbieKeyReference#toc8> appears to be what you're looking for ( C-x h after setting marker )

Also, depends on whether you want the 'page', or buffer, etc.