bug#10304: display bug (was: bug#14704: 24.3.50; cl-lib breaks built-in Emacs version)

[Eli Zaretskii]

> From: Michael Albinus <michael.albinus@gmx.de>
> Cc: 10304@debbugs.gnu.org
> Date: Tue, 25 Jun 2013 20:27:08 +0200
> 
> Since this is the only machine where it happens, I feel helpless giving
> you a simple recipe.

If it happens only on that machine, can't it be some local hardware or
system software problem?

> The better way might be that you give me a special patch producing
> whatever traces could help in analysis.

I will try to think about it.  Could just summarize what
idiosyncrasies do you remember seeing on that machine?  Like in which
parts of the display/window do these artifacts appear, and which
part(s) of a line did you observe garbled?  E.g., is it always the
beginning of a line?