Subject: mupdf: screen tearing (regression?)

From: Celejar <[email-masked]>
Date: Wed, 26 Jul 2017 23:55:13 -0400

Package: mupdf
Version: 1.9a+ds1-4
Severity: important

I've been a happy user of mupdf in Jessie. I recently upgraded my system
to Stretch, and now mupdf exhibits terrible screen tearing when paging
through or resizing documents. Other pdf readers, such as evince and
qpdfview, do not exhibit any tearing.

-- System Information:
Debian Release: 9.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.38-lila (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mupdf depends on:
ii  libc6            2.24-11+deb9u1
ii  libfreetype6     2.6.3-3.2
ii  libharfbuzz0b    1.4.2-1
ii  libjbig2dec0     0.13-4.1
ii  libjpeg62-turbo  1:1.5.1-2
ii  libopenjp2-7     2.1.2-1.1
ii  libx11-6         2:1.6.4-3
ii  libxext6         2:1.3.3-1+b2
ii  zlib1g           1:1.2.8.dfsg-5

mupdf recommends no packages.

Versions of packages mupdf suggests:
pn  mupdf-tools  <none>

-- no debconf information