if you want to collect more information, use the ubuntu-server
preinstalled image which does the whole install on serial console.

after you are done with the installation edit the omap bootscript in
/usr/share/flash-kernel/bootscript/bootscr.omap and drop quiet and
splash from the bootarg line, then add "omapdss.debug drm.debug=7", save
the file and run sudo flash-kernel ... now reboot.

/var/log/dmesg should have a lot of graphics debugging info after the
next boot.

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https://bugs.launchpad.net/bugs/1010009

Title:
  omapdss only works on some monitors in quantal

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