Subject: bug#20906: 25.0.50;

From: Eli Zaretskii <[email-masked]>
Date: Mon, 05 Oct 2015 10:06:32 +0300

> From: Mike FABIAN <[email-masked]>
> Cc: [email-masked]
> Date: Mon, 05 Oct 2015 08:30:12 +0200
> 
> Eli Zaretskii <[email-masked]> さんはかきました:
> 
> Eli> What is your value of selection-coding-system?
> 
> Mike> nil
> 
> Eli> Does it help to set it to utf-8 or compound-text-with-extensions?
> 
> Unfortunately not, I had already tried that.

The only way to debug this is to track the data we receive from the X
selection in xselect.c all the way to mouse-yank-primary, and see
what's going on there.  Can you do that?