I would like to use my old iMac Mid 2007 with antergos. I am running antergos on 3 other machines and this is the first one that gives me headaches. The install ISO does not work, because X fails to start. As far as I have understood other answers on the internet, the very old graphic card (ATI Radeon HD 2600 Pro) is causing the problem. Because I have no knowledge about the inner workings of current Linux distributions and the way X works, I am lost.
I tried other Arch based distros, but they have the same problem. Only a Debian based distro (Mint) manages to start a live environment. I have no idea what Mint does different (using a plain old generic VGA driver without acceleration?), but it works right out of the box.
Is there a way (maybe some magical boot parameters) to let antergos live cd (minimal or standard) start with at least a basic graphical environment that let me install the system?