I am getting this message very very frequently.

   Ubuntu 19.10

from the command line.  The most intersting thing is that I may have 5
or 6 bash windows open.  Aftetr executiong Meld from one terminal
window.  If I subsequently use meld from a Different teminal session,
these errors spray-out on that first terminal's window:

     :
   2020-03-18 11:52:47,201 CRITICAL Gtk: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
   2020-03-18 11:52:47,201 CRITICAL Gtk: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
   2020-03-18 11:52:47,201 CRITICAL Gtk: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
   2020-03-18 11:52:47,201 CRITICAL Gtk: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed


I execute meld with the following command

   nohup  meld "${@}"   > /dev/null  2>&1  &

Which sends output to  dev/null.  I am very surprised to see these
messages coming on any screen since the output is sent to null.

It looks to me like there's some kind of service involved not the
actuall meld background process

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-terminal in Ubuntu.
https://bugs.launchpad.net/bugs/1712520

Title:
  [17.04][gnome] screen hanged after meld launched via terminal was put
  to sleep by C-z: gtk_widget_get_scale_factor: assertion 'GTK_IS_WIDGET
  (widget)' failed

Status in GTK+:
  New
Status in gnome-terminal package in Ubuntu:
  Confirmed

Bug description:
  Surprisingly, when I launched meld as a difftool and later suspended
  it my session got frozen: my mouse was moving but clicks and keyboard
  presses did not have any effect, there was an empty rectangle on my
  screen on top of one of the windows. The only thing I could do was to
  switch to a different VT and take a look at what's going on.

  
  Actions:

  git difftool master tests/basic_deployment.py

  This message is displayed because 'diff.tool' is not configured.
  See 'git difftool --tool-help' or 'git help config' for more details.
  'git difftool' will now attempt to use one of the following tools:
  meld opendiff kdiff3 tkdiff xxdiff kompare gvimdiff diffuse diffmerge ecmerge 
p4merge araxis bc codecompare emerge vimdiff

  Viewing (1/1): 'tests/basic_deployment.py'
  Launch 'meld' [Y/n]? y
  ^Z
  [1]  + 16839 suspended  git difftool master tests/basic_deployment.py

  
  lsb_release -a
  No LSB modules are available.
  Distributor ID:       Ubuntu
  Description:  Ubuntu 17.04
  Release:      17.04
  Codename:     zesty

  
  dpkg -l 'gnome-session'
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name                                                  Version             
            Architecture                    Description
  
+++-=====================================================-===============================-===============================-================================================================================================================
  ii  gnome-session                                         3.24.0-0ubuntu1     
            amd64                           GNOME Session Manager - GNOME 3 
session

  
  ➜  ~ dpkg -l 'libgtk*'
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name                                                  Version             
            Architecture                    Description
  
+++-=====================================================-===============================-===============================-================================================================================================================
  ii  libgtk-3-0:amd64                                      3.22.11-0ubuntu3    
            amd64                           GTK+ graphical user interface 
library
  ii  libgtk-3-bin                                          3.22.11-0ubuntu3    
            amd64                           programs for the GTK+ graphical 
user interface library
  ii  libgtk-3-common                                       3.22.11-0ubuntu3    
            all                             common files for the GTK+ graphical 
user interface library
  un  libgtk-vnc-1.0-0                                      <none>              
            <none>                          (no description available)
  ii  libgtk-vnc-2.0-0:amd64                                0.6.0-3             
            amd64                           VNC viewer widget for GTK+3 
(runtime libraries)
  ii  libgtk2-perl                                          2:1.2499-1          
            amd64                           Perl interface to the 2.x series of 
the Gimp Toolkit library
  un  libgtk2-perl-doc                                      <none>              
            <none>                          (no description available)
  ii  libgtk2.0-0:amd64                                     2.24.31-1ubuntu1.1  
            amd64                           GTK+ graphical user interface 
library
  ii  libgtk2.0-bin                                         2.24.31-1ubuntu1.1  
            amd64                           programs for the GTK+ graphical 
user interface library
  ii  libgtk2.0-common                                      2.24.31-1ubuntu1.1  
            all                             common files for the GTK+ graphical 
user interface library
  ii  libgtkglext1:amd64                                    1.2.0-6             
            amd64                           OpenGL Extension to GTK+ (shared 
libraries)
  un  libgtkmm-2.4-1c2a                                     <none>              
            <none>                          (no description available)
  ii  libgtkmm-2.4-1v5:amd64                                1:2.24.5-1          
            amd64                           C++ wrappers for GTK+ (shared 
libraries)
  un  libgtkmm-3.0-1                                        <none>              
            <none>                          (no description available)
  ii  libgtkmm-3.0-1v5:amd64                                3.22.0-1            
            amd64                           C++ wrappers for GTK+ (shared 
libraries)
  ii  libgtksourceview-3.0-1:amd64                          3.24.0-0ubuntu1     
            amd64                           shared libraries for the GTK+ 
syntax highlighting widget
  ii  libgtksourceview-3.0-common                           3.24.0-0ubuntu1     
            all                             common files for the GTK+ syntax 
highlighting widget
  un  libgtkspell-3-0                                       <none>              
            <none>                          (no description available)
  ii  libgtkspell0                                          2.0.16-1.1ubuntu1   
            amd64                           a spell-checking addon for GTK's 
TextView widget
  ii  libgtkspell3-3-0:amd64                                3.0.9-1             
            amd64                           spell-checking addon for GTK+'s 
TextView widget
  ➜  ~ dpkg -l 'gnome-terminal*'
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name                                                  Version             
            Architecture                    Description
  
+++-=====================================================-===============================-===============================-================================================================================================================
  ii  gnome-terminal                                        
3.24.2-0ubuntu3~ubuntu17.04.1   amd64                           GNOME terminal 
emulator application
  ii  gnome-terminal-data                                   
3.24.2-0ubuntu3~ubuntu17.04.1   all                             Data files for 
the GNOME terminal emulator
  ➜  ~ dpkg -l 'meld*'          
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name                                                  Version             
            Architecture                    Description
  
+++-=====================================================-===============================-===============================-================================================================================================================
  ii  meld                                                  3.16.4-1            
            all                             graphical tool to diff and merge 
files


  The error log was full of gtk_widget_get_scale_factor assertions.
  Thankfully, I had a pid to kill - after `sudo kill 18653` I was able
  to get back to my session and continue on working (albeit I lost all
  my terminal tabs).

  Similar assertion report:
  https://mail.gnome.org/archives/evolution-list/2017-January/msg00047.html

  journalctl

  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed
  авг 11 17:14:16 blade nautilus[18653]: gtk_widget_get_scale_factor: assertion 
'GTK_IS_WIDGET (widget)' failed

To manage notifications about this bug go to:
https://bugs.launchpad.net/gtk/+bug/1712520/+subscriptions

-- 
Mailing list: https://launchpad.net/~desktop-packages
Post to     : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to