[Pkg-xfce-devel] Bug#773582: xfwm4: Horizontal lines "tearing" when moving windows or watching video

[john]

Package: xfwm4

Dear Maintainer,
I have the latest official debian stable release installed on three
different machines with different graphic cards (intel,nvidia) and XFCE
as the default DE through the installer.
All of them have the same issue:  Horizontal lines "tearing" when moving
windows or watching video.
I try to enable/disable xfwm's compositor but nothing change.
Installing and using other compositor such as compton, solves the
problem (Only some performance issues remain). So i suppose this is a
xfwm4 bug?


-- System Information:
Debian Release: 7.7
   APT prefers stable-updates
   APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages xfwm4 depends on:
ii  libc6                     2.19-13
ii  libdbus-glib-1-2          0.100.2-1
ii  libgdk-pixbuf2.0-0        2.26.1-1
ii  libglib2.0-0              2.33.12+really2.32.4-5
ii  libgtk2.0-0               2.24.10-2
ii  libpango1.0-0             1.30.0-1
ii  libstartup-notification0  0.12-1
ii  libwnck22                 2.30.7-1
ii  libx11-6                  2:1.5.0-1+deb7u1
ii  libxcomposite1            1:0.4.3-2
ii  libxdamage1               1:1.1.3-2
ii  libxext6                  2:1.3.1-2+deb7u1
ii  libxfce4ui-1-0            4.8.1-1
ii  libxfce4util4             4.8.2-1
ii  libxfconf-0-2             4.8.1-1
ii  libxfixes3                1:5.0-4+deb7u1
ii  libxrandr2                2:1.3.2-2+deb7u1
ii  libxrender1               1:0.9.7-1+deb7u1

Versions of packages xfwm4 recommends:
ii  librsvg2-common  2.36.1-2
ii  xfwm4-themes     4.6.0-3

Versions of packages xfwm4 suggests:
ii  xfce4  4.8.0.3

-- no debconf information