Comment # 6 on bug 950569 from patrick shanahan

Responding to c#5, re c#4

I have the same with an ascer aspire iv which does not have a dell bios

Previous had two efi boot entries, 
 grub-secure-boot
 Microsoft-secure-boot

I now have three
 opensuse-secure-boot

opensuse-secure-boot is default and provides blank back-lit screen with
blinking cursor in upper left corner.  45 minutes later the same display

Selecting the second, grub-.., successfully boots.

If it is a dell bios problem, it is also an acer bios problem.