I recently installed 12.04 onto a iMAC G5 2.1 GHz PPC. The install went fine and I am able too successfully boot, however upon boot I only see a black screen with a mouse pointer.
My issue is the same as: http://ubuntuforums.org/showthread.php?t=2123510
I have tried all of the suggested boot parameters but to no avail. When I attempt to enter terminal and logon, the mouse icon goes away and I think I am logged in, however the system will not respond to any commands to force the display mode.
I believe my issue is https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1044180, however I cannot for the life of me figure out how to fix it given the fact I cannot see anything and the terminal commands I am attempting to do without a monitor are not working. Please help!