Score:0

4 way screen after installing 20.04 on 2011 imac?

cm flag

After installing 20.04 on a 2011 iMac, I get this distorted screen split in 4. A live USB using safe graphics works perfect but not a full install. I don't get a GRUB menu either to load into safe graphics.

image of display with graphical glitch

Nmath avatar
ng flag
Since this is a new install, I can imagine only three categories of reasons this is happening: 1) Ubuntu was not installed correctly; 2) This is a bug; or 3) This is a hardware problem. If #1 you need to make sure that your installation media is valid. Check the integrity of the ISO and make sure it's flashed correctly. Then verify you've installed Ubuntu correctly. Here's the [official tutorial](https://ubuntu.com/tutorials/install-ubuntu-desktop). If #2, [file a bug report](https://askubuntu.com/q/5121). We can't take bug reports here. If #3, there's not much you can do about that
Michael Knight avatar
cm flag
It works fine on a live usb when I use the Try Ubuntu option i even get a grub menu, shouldnt that rule out a hardware problem. The iso is fresh from Ubuntu website. I also completely wiped the SSD just to do this install clean with no other OS installed.
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