Comment 5 for bug 1554004

Hello Dariusz.
Unfortunately the backtrace is not so useful as it could be with debug symbols.

Please install following packages, reproduce crash and paste Xorg.0.log file.

  sudo apt-get install xserver-xorg-core-dbg xserver-xorg-video-openchrome-dbg

Also I would recommend to build latest openchrome version from git, with Debug symbols enabled. It could be easily done with following commands:

    git clone git://anongit.freedesktop.org/openchrome/xf86-video-openchrome
    cd xf86-video-openchrome
    ./autogen.sh --prefix=/usr --enable-debug --enable-xv-debug
    make
    sudo make install

More information how to build and install you could find at:
https://www.freedesktop.org/wiki/Openchrome/Installation/

or:

https://help.ubuntu.com/community/OpenChrome