First double check that OpenGL is installed and working by runging /usr/bin/glxgears. And then if that works, submit bug report to chimera-bugs@cgl.ucsf.edu with the output of the glxinfo program and the CHIMERA/bin/linuxdist program as well as the backtrace you've included here. - Greg On Thu, 2 Jul 2009, Bala subramanian wrote:

Greg,

Thank you for the reply. I removed all the previous chimera installations and ~/.chimera directory. Downloaded the latest 1.4 build and then installated. Now when i start the chimera, i get the following error. I am not sure if this is graphic card problem but i am attaching the glxinfo output with the mail.

Traceback (most recent call last): File "/usr/local/chimera/share/__main__.py", line 65, in <module> value = chimeraInit.init(sys.argv) File "/usr/local/chimera/share/chimeraInit.py", line 374, in init tkgui.initializeGUI(exitonquit, debug_opengl) File "CHIMERA/share/chimera/tkgui.py", line 2663, in initializeGUI File "/usr/local/chimera/lib/python2.5/site-packages/PIL/__init__.py", line 309, in checkConfig

File "/usr/local/chimera/lib/python2.5/site-packages/Togl.py", line 27, in __init__ Tkinter.Widget.__init__(self, master, "togl", cnf, kw) File "/usr/local/chimera/lib/python2.5/lib-tk/Tkinter.py", line 1930, in __init__ (widgetName, self._w) + extra + self._options(cnf)) _tkinter.TclError: couldn't choose pixel format Couldn't configure togl widget

On Wed, Jul 1, 2009 at 7:48 PM, Greg Couch <gregc@cgl.ucsf.edu> wrote:

...

On Wed, 1 Jul 2009, Bala subramanian wrote:

Friends,

...

I installed chimera in fedora10, installation was fine but starting chimera throws me the following error. Trying chimera version 1.3

Traceback (most recent call last): File "/usr/local/chimera/share/__main__.py", line 65, in <module> value = chimeraInit.init(sys.argv) File "/usr/local/chimera/share/chimeraInit.py", line 361, in init tkgui.initializeGUI(exitonquit, debug_opengl) File "CHIMERA/share/chimera/tkgui.py", line 2525, in initializeGUI File "/usr/local/chimera/lib/python2.5/site-packages/PIL/__init__.py", line 321, in checkConfig

File "/usr/local/chimera/lib/python2.5/site-packages/PIL/__init__.py", line 297, in checkForChange

File "/usr/local/chimera/lib/python2.5/site-packages/PIL/__init__.py", line 52, in readGfxInfo

KeyError: 'Pbuffer'

The Pbuffer code doesn't appear in chimera until after 1.3 in the 1.4 alpha releases (the daily builds). So it looks like you started up a chimera daily build with the --debug-opengl option, saved a configuration, and then tried the 1.3 release. The solution is to start the daily build with the --debug-opengl option, then revert to Factory Defaults and Save, so the 1.3 version sees the default setup (same as removing your ~/.chimera/gfxinfo.sav file).

- Greg