Bug#731148: imagemagick: spurious black rectangle in image generated by "import -window root"

[Vincent Lefevre]

Package: imagemagick
Version: 8:6.7.7.10-6
Severity: normal

I have the following shortcut in my fvwm config:

Key r   A   CM  Exec import -window root HOME/screenshot.png

and I took a screenshot with it. But a black rectangle appears on
the image (see attached file). This black rectangle corresponds to
the position of an xterm window that was below the other windows.

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.11-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages imagemagick depends on:
ii  hicolor-icon-theme  0.12-1
ii  libbz2-1.0  1.0.6-5
ii  libc6   2.17-97
ii  libfontconfig1  2.11.0-1+local1
ii  libfreetype62.5.1-1
ii  libglib2.0-02.36.4-1
ii  libgomp14.8.2-7
ii  libice6 2:1.0.8-2
ii  libjpeg88d-1
ii  liblcms2-2  2.2+git20110628-2.3
ii  liblqr-1-0  0.4.1-2
ii  libltdl72.4.2-1.3+local1
ii  liblzma55.1.1alpha+20120614-2
ii  libmagickcore5  8:6.7.7.10-6
ii  libmagickwand5  8:6.7.7.10-6
ii  libsm6  2:1.2.1-2
ii  libtiff43.9.7-2
ii  libx11-62:1.6.2-1
ii  libxext62:1.3.2-1
ii  libxt6  1:1.1.4-1
ii  zlib1g  1:1.2.8.dfsg-1

Versions of packages imagemagick recommends:
ii  ghostscript   9.05~dfsg-8
ii  libmagickcore5-extra  8:6.7.7.10-6
ii  netpbm2:10.0-15+b1
ii  ufraw-batch   0.19.2-2

Versions of packages imagemagick suggests:
pn  autotrace
ii  cups-bsd [lpr]   1.6.4-2
ii  curl 7.33.0-1
pn  enscript 
ii  ffmpeg   6:0.8.9-1
ii  gimp 2.8.6-1
ii  gnuplot  4.6.4-1
pn  grads
ii  groff-base   1.22.2-3
pn  hp2xx
pn  html2ps  
ii  imagemagick-doc  8:6.7.7.10-6
pn  libwmf-bin   
ii  mplayer  2:1.0~rc4.dfsg1+svn34540-1+b2
pn  povray   
pn  radiance 
ii  sane-utils   1.0.23-3
ii  texlive-binaries [texlive-base-bin]  2013.20130729.30972-2
ii  transfig 1:3.2.5.e-1
ii  xdg-utils1.1.0~rc1+git20111210-7

-- no debconf information
<>

Bug#731148: imagemagick: spurious black rectangle in image generated by "import -window root"

[Vincent Lefevre]

Control: retitle -1 imagemagick: "import -window root" image can show windows 
that are behind the other ones

On 2013-12-02 14:27:01 +0100, Vincent Lefevre wrote:
> Package: imagemagick
> Version: 8:6.7.7.10-6
> Severity: normal
> 
> I have the following shortcut in my fvwm config:
> 
> Key r   A   CM  Exec import -window root HOME/screenshot.png
> 
> and I took a screenshot with it. But a black rectangle appears on
> the image (see attached file). This black rectangle corresponds to
> the position of an xterm window that was below the other windows.

Not just a black rectangle, but the screenshot can also show a window
that is actually behind the other ones (i.e. a window that should be
completely invisible). I've added:

Key g   A   CM  Exec gnome-screenshot

so that I could take a screenshot with imagemagick and another one
with gnome-screenshot, and only the imagemagick one is buggy.

-- 
Vincent Lefèvre  - Web: 
100% accessible validated (X)HTML - Blog: 
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)


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Bug#731148: imagemagick: spurious black rectangle in image generated by "import -window root"

[Bastien ROUCARIES]

On Tue, Dec 3, 2013 at 12:31 AM, Vincent Lefevre  wrote:
> Control: retitle -1 imagemagick: "import -window root" image can show windows 
> that are behind the other ones
>
> On 2013-12-02 14:27:01 +0100, Vincent Lefevre wrote:
>> Package: imagemagick
>> Version: 8:6.7.7.10-6
>> Severity: normal
>>
>> I have the following shortcut in my fvwm config:
>>
>> Key r   A   CM  Exec import -window root HOME/screenshot.png
>>
>> and I took a screenshot with it. But a black rectangle appears on
>> the image (see attached file). This black rectangle corresponds to
>> the position of an xterm window that was below the other windows.
>
> Not just a black rectangle, but the screenshot can also show a window
> that is actually behind the other ones (i.e. a window that should be
> completely invisible). I've added:
>
> Key g   A   CM  Exec gnome-screenshot
>
> so that I could take a screenshot with imagemagick and another one
> with gnome-screenshot, and only the imagemagick one is buggy.

Code as not changed since the 90's so I will suspect X/X
driver/desktop in this case.

Bastien
>
> --
> Vincent Lefèvre  - Web: 
> 100% accessible validated (X)HTML - Blog: 
> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
>


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