Subject: bug#14744: 24.3.50; Flickering mouse-face on process output

From: Eli Zaretskii <[email-masked]>
Date: Sat, 29 Jun 2013 10:46:36 +0300

> From: Christopher Schmidt <[email-masked]>
> Date: Sat, 29 Jun 2013 01:10:51 +0100 (BST)
> 
>     emacs -q
>     C-x 2
>     M-x shell RET
>     cat /dev/urandom RET
>     C-x o
>     # Move mouse on one of the buttons so the face changes to highlight
> 
> The button flickers here.
> 
> Xorg and GTK+ 2.24.10 on GNU/Linux and current Emacs trunk.  This issue
> is easily reproducible on older Emacsen, such as 24.3 or 23.4.

Redisplay of a window always includes redisplay of the tool bar.  The
latter involves drawing the buttons, and then applying the depressed
faced to the button that the mouse pointer hovers above.  That is what
you see, I believe.  So why do you consider that a bug?