Comment # 4 on bug 1042216 from Deniz AYIKOL

I tried using the Fn+F3 key combination to switch display mode but it didn't
work in openSUSE installer. It works under Windows. And since the primary
monitor isn't working, I can't see anything before OS boot up. So I can't go
into BIOS. I navigate the grub menu of the openSUSE installer blindly.

And here's another use case affected by this issue: Showing openSUSE
installation process to an audience using a projector. I assume the same black
screen is shown when a projector is connected.

Also when I click that link to Trello, it says card not found.