2009 iMac running ubuntu has 4 duplicated screens that are unreadable. Please he

[kalpana]

I just installed linux 22.04 on this mac and it is stuck in this terrible state. I have tried booting to grub but that isn't working. When I started it in safe graphics mode it worked fine. After installing, it went back to the messed up graphics. How can I either fix the screens or keep it in safe graphics mode?

Keep in mind that it is impossible to read the screen.


Thanks!