The VM still does not display anything in the white window after I did
apt-get dist-upgrade, and copy the .sources file to the same directly.
(But I did not have an egg this morning).  I'll try some display
options.  But also, it appears that the source code for the Cog seems
to have the part I wrote for the composition input.  The goal may be
nearer than I originally thought.

On Fri, May 6, 2016 at 6:23 PM, Yoshiki Ohshima <Yoshiki.Ohshima at acm.org> wrote:
> On Fri, May 6, 2016 at 5:58 PM, tim Rowledge <tim at rowledge.org> wrote:
>>
>> Another possibility is Yoshiki has an old version of Raspbian; old kernel from early last year (?) wouldn’t let us futz wit the timer thread priority without pain. It’s been a while since that was fixed but if you have an old Raspbian… except that ought to prevent the all-in-one system running. But this is unix, which is carefully designed to drive one to the edge of madness, so maybe you just had the wrong kind of egg for your breakfast last time there was a blue moon.
>
> That sounds plausible.  I did "apt-get update" to get some packages
> loadable but did not go on to update the entire system. I'll try that.
>
>
>
> --
> -- Yoshiki



-- 
-- Yoshiki