Devuan bug report logs - #637
xpdf crashes the window manager

Package: xpdf; Maintainer for xpdf is (unknown); Source for xpdf is src:xpdf.

Reported by: David Haworth <dh@thelancashireman.org>

Date: Sun, 28 Nov 2021 07:26:01 UTC

Severity: normal

Tags: debian, invalid

Found in version 3.04+git20211021-1

Done: Mark Hindley <mark@hindley.org.uk>

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From: Adam Sampson <ats@offog.org>
To: Mark Hindley <mark@hindley.org.uk>
Cc: David Haworth <dh@thelancashireman.org>,  637@bugs.devuan.org,  devuan
 developers internal list <devuan-dev@lists.dyne.org>
Subject: Re: [devuan-dev] bug#637: xpdf crashes the window manager
References: <163808423533.18485.5663603741949018400.reportbug@fionn.haworth.lan>
	<163808423533.18485.5663603741949018400.reportbug@fionn.haworth.lan>
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Date: Tue, 30 Nov 2021 01:13:23 +0000
In-Reply-To: <YaSte/uClXVafFET@hindley.org.uk> (Mark Hindley's message of
	"Mon, 29 Nov 2021 10:37:47 +0000")
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Mark Hindley <mark@hindley.org.uk> writes:

> Thanks. Notwithstanding this, you should report this issue directly to
> Debian. Devuan uses Debian's xpdf packages directly without
> recompilation.

(I'm the maintainer of xpopple, which is the upstream source for
Debian's xpdf these days.)

The problem reported here is not that xpdf crashes, it's that the window
manager crashes. That shouldn't happen regardless of what client
programs do, so this isn't a fault in xpdf itself.

Are you certain that it's the window manager crashing, and not the X
server? The latter seems more likely -- when you're scrolling the table
of contents, it's not changing any properties of the window (which would
cause the WM to do something), but it is doing lots of X drawing
operations to scroll the list and render new text. It'd be worth having
a look at the X server log after a crash (/var/log/Xorg.0.log.old).

If it's only just started doing this, one change we've made recently in
xpdf is to enable Xft font support by default. You could try setting the
following X resource (with xrdb):

Xpdf*font: fixed

This should make it use a bitmap font for the interface instead, which
will be rendered using X's core font support rather than alpha
blending. If that fixes it, then it could be a problem with your
graphics driver's implementation of the RENDER extension.

Thanks,

-- 
Adam Sampson <ats@offog.org>                         <http://offog.org/>

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Devuan bug report logs - #637 xpdf crashes the window manager

Devuan bug report logs - #637
xpdf crashes the window manager