On Sun, 22 Feb 2015 18:19:56 +0100, Peter Münster wrote:
> When I open this message:

> Newsgroups: gmane.comp.freedesktop.xorg
> Subject: DPMS switches to suspend too early

> I get these errors:

> Invalid face attribute :italic t [68 times]
> gnus-mime-display-part: End of bufferInvalid face attribute :italic t
> Invalid face attribute :italic t [11 times]

> and all headers are displayed.

The "End of buffer" error is due to my fault (2014-05-14).  I've
fixed it in the Gnus git master and the Emacs git master.  Thanks.
But I couldn't reproduce the "Invalid face attribute" error for
the article in question.  Could you try this change?