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Bug#779500: marked as done (qtcreator: Qtcreator disappears when switching displays)

Your message dated Fri, 04 May 2018 11:25:31 -0300
with message-id <1970578.WxVFjAi3fQ@tonks>
and subject line Should be fixed in stable.
has caused the Debian Bug report #779500,
regarding qtcreator: Qtcreator disappears when switching displays
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
779500: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=779500
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: qtcreator
Version: 3.2.1+dfsg-7
Severity: normal

Dear Maintainer,

when I switch the display while qtcreator (or texmaker) is running the window
disappears. The process keeps on running. The console output (when I switch
displays) is:
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::begin: Paint device returned engine == 0, type: 2
QBackingStore::flush() called for  QWidgetWindow(0x150bc40, name =
"Core::Internal::MainWindowClassWindow")  which does not have a handle.

For me an easy way to reproduce is (on my laptop, intel gpu) using xfce4,
plugging in a external display and switch to the external, disabling the
internal at the same time. But I was also able to reproduce it on my desktop PC
(running mate, nvidia gpu).



-- System Information:
Debian Release: 8.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.14-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages qtcreator depends on:
ii  libbotan-1.10-0                          1.10.8-2
ii  libc6                                    2.19-15
ii  libgcc1                                  1:4.9.1-19
ii  libqt5concurrent5                        5.3.2+dfsg-4+b1
ii  libqt5core5a [qtbase-abi-5-3-2]          5.3.2+dfsg-4+b1
ii  libqt5declarative5 [qtquick1-abi-5-2-1]  5.3.2-3
ii  libqt5designer5                          5.3.2-3
ii  libqt5designercomponents5                5.3.2-3
ii  libqt5gui5                               5.3.2+dfsg-4+b1
ii  libqt5help5                              5.3.2-3
ii  libqt5network5                           5.3.2+dfsg-4+b1
ii  libqt5printsupport5                      5.3.2+dfsg-4+b1
ii  libqt5qml5 [qtdeclarative-abi-5-3-2]     5.3.2-4
ii  libqt5quick5                             5.3.2-4
ii  libqt5script5                            5.3.2+dfsg-2
ii  libqt5sql5                               5.3.2+dfsg-4+b1
ii  libqt5sql5-sqlite                        5.3.2+dfsg-4+b1
ii  libqt5webkit5                            5.3.2+dfsg-3
ii  libqt5widgets5                           5.3.2+dfsg-4+b1
ii  libqt5x11extras5                         5.3.2-2
ii  libqt5xml5                               5.3.2+dfsg-4+b1
ii  libstdc++6                               4.9.1-19
ii  libx11-6                                 2:1.6.2-3
ii  qml-module-qtquick-controls              5.3.2-2
ii  qml-module-qtquick2                      5.3.2-4
ii  qtchooser                                47-gd2b7997-2
ii  qtcreator-data                           3.2.1+dfsg-7

Versions of packages qtcreator recommends:
ii  gdb                                   7.7.1+dfsg-5
ii  gnome-terminal [x-terminal-emulator]  3.12.3-2
ii  guake [x-terminal-emulator]           0.4.4-1
ii  make                                  4.0-8.1
ii  mate-terminal [x-terminal-emulator]   1.8.1+dfsg1-4
ii  qt5-doc                               5.3.0-2
ii  qtbase5-dev-tools                     5.3.2+dfsg-4+b1
ii  qtcreator-doc                         3.2.1+dfsg-7
ii  qtdeclarative5-dev-tools              5.3.2-4
ii  qtquick1-5-dev-tools                  5.3.2-3
ii  qttools5-dev-tools                    5.3.2-3
ii  qttranslations5-l10n                  5.3.2-2
ii  qtxmlpatterns5-dev-tools              5.3.2-2
ii  xfce4-terminal [x-terminal-emulator]  0.6.3-1+b1
ii  xterm [x-terminal-emulator]           312-1

Versions of packages qtcreator suggests:
ii  cmake          3.0.2-1
ii  g++            4:4.9.1-5
ii  git            1:2.1.4-2.1
ii  kdelibs5-data  4:4.14.2-5
ii  subversion     1.8.10-5

--- End Message ---
--- Begin Message --- 
Version: 4.2.0-1

This bug should be already fixed in Debian stable. If you still can reproduce 
it please file a new bug.

Thanks!

-- 
No subestimes el ancho de banda de un camión
cargado de cintas.
  Andrew S. Tanenbaum

Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/

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