Comment 1 for bug 1663849

Some further experimentation seems to hint that the tools that aren't working are not simply hanging. Instead, they are simply not able to draw anything on the screen. For example, after running HelloWorld.efi, nothing will appear. However, pressing Enter will return to the EFI shell prompt. Similarly, when running KeyTool.efi nothing will appear. However, pressing the down arrow three times to select the "Exit" menu option blindly and then pressing enter will return to the EFI shell prompt as well.