I just can't wrap my head around this. I've been trying to install Linux (yesterday Arch, today Ubuntu) for quite some time now. I had graphics issues every single time. Mostly bsod a few seconds after logging in, rarely directly on boot.

Now I finally got it to work on 15.10, but only when I manually add "nomodeset" to kernel parameters. If I set it in /etc/default/grub and run "sudo update-grub", the resolution is set to 1024x768. Also, I am using the open-source radeon driver, because the release notes say so.

What is going wrong here?

Really getting frustrated, especially because Ubuntu has mostly worked flawless for me. How do I fix this?

Also, I haven't yet found out how to set my refresh rate to 144hz.