I'm having the same problem. Once I could barely se some atoms
(extremely dark gray on black). Changed the background color to light
gray, but to no avail. Here's my output:

rasmus@rasmus-Lenovo-Z710:~$ avogadro
"Avogadro version:      1.1.1   Git:    
LibAvogadro version:    1.1.1   Git:    " 
Locale:  "nb_NO" 
Translation successfully loaded. 
System has OpenGL support. 
About to test OpenGL capabilities. 
OpenGL capabilities found: 
        Double Buffering.
        Direct Rendering.
        Antialiasing.
void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action 
"" under id 62 
void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action 
"" under id 63 
Loading plugins: "/usr/bin/../lib/avogadro/1_1" 
Searching for plugins in "/usr/lib/avogadro/1_1" 
Searching for plugins in "/usr/lib/avogadro/1_1/colors" 
Searching for plugins in "/usr/lib/avogadro/1_1/engines" 
Searching for plugins in "/usr/lib/avogadro/1_1/extensions" 
Searching for plugins in "/usr/lib/avogadro/1_1/tools" 
Loading plugins: "/home/rasmus/.avogadro/1_1/plugins" 
Settings are missing for the next engines: () 
QStackedLayout::setCurrentWidget: Widget 0x55bb862338e0 not contained in stack
dev warning: Extension "GAMESS" is using a deprecated DockWidget loading 
method. See Extension::dockWidgets() documentation. 
dev warning: Extension "Orbitals" is using a deprecated DockWidget loading 
method. See Extension::dockWidgets() documentation. 
dev warning: Extension "Python-terminal" is using a deprecated DockWidget 
loading method. See Extension::dockWidgets() documentation. 
dev warning: Extension "Vibrasjon" is using a deprecated DockWidget loading 
method. See Extension::dockWidgets() documentation. 
GLWidget initialisation... 
GLSL support enabled, OpenGL 2.0 support confirmed. 
GLWidget initialised... 
createObjects() 
OpenGL extension GL_ARB_texture_rectangle is present. 
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: cHRM: invalid chromaticities

Chromaticities? Please help!

-r  :-)

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https://bugs.launchpad.net/bugs/1640171

Title:
  Molecules are not rendered, black screen

Status in avogadro package in Ubuntu:
  Confirmed

Bug description:
  Description:
  Recent version of avogadro package is not working properly. It is not 
possible to draw molecule or to display molecule from the pdb/gro file.

  
  Ubuntu version:
  Description:  Ubuntu 16.10
  Release:      16.10

  Here is the console log:

  @jakubkrajniak ~ $ avogadro 
  "Avogadro version:    1.1.1   Git:    
  LibAvogadro version:  1.1.1   Git:    " 
  Locale:  "en_US" 
  Libavogadro translations not found. 
  System has OpenGL support. 
  About to test OpenGL capabilities. 
  OpenGL capabilities found: 
        Double Buffering.
        Direct Rendering.
        Antialiasing.
  Loading plugins: "/usr/bin/../lib/avogadro/1_1" 
  Searching for plugins in "/usr/lib/avogadro/1_1" 
  Searching for plugins in "/usr/lib/avogadro/1_1/colors" 
  Searching for plugins in "/usr/lib/avogadro/1_1/engines" 
  Searching for plugins in "/usr/lib/avogadro/1_1/extensions" 
  Searching for plugins in "/usr/lib/avogadro/1_1/tools" 
  Loading plugins: "/home/teodor/.avogadro/1_1/plugins" 
  Settings are missing for the next engines: () 
  QStackedLayout::setCurrentWidget: Widget 0x55f9c0f637b0 not contained in stack
  dev warning: Extension "GAMESS" is using a deprecated DockWidget loading 
method. See Extension::dockWidgets() documentation. 
  dev warning: Extension "Orbitals" is using a deprecated DockWidget loading 
method. See Extension::dockWidgets() documentation. 
  Could not find python module... 
  dev warning: Extension "Python Terminal" is using a deprecated DockWidget 
loading method. See Extension::dockWidgets() documentation. 
  dev warning: Extension "Vibration" is using a deprecated DockWidget loading 
method. See Extension::dockWidgets() documentation. 
  GLWidget initialisation... 
  GLSL support enabled, OpenGL 2.0 support confirmed. 
  GLWidget initialised... 
  createObjects() 
  libpng warning: iCCP: known incorrect sRGB profile
  libpng warning: iCCP: known incorrect sRGB profile
  libpng warning: iCCP: known incorrect sRGB profile
  libpng warning: iCCP: known incorrect sRGB profile
  libpng warning: cHRM: invalid chromaticities
  Qt has caught an exception thrown from an event handler. Throwing
  exceptions from an event handler is not supported in Qt. You must
  reimplement QApplication::notify() and catch all exceptions there.

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