[Bug 280597] bootloader does not load OS when screen resolution is 5k or higher

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280597

            Bug ID: 280597
           Summary: bootloader does not load OS when screen resolution is
                    5k or higher
           Product: Base System
           Version: 14.1-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: spock@sarahspock.com

When the default resolution is 5k or higher, the bootloader will not load the
OS, and will restart the computer. This occurs on the install disc and after
installation. The bootloader will load the os if you use option: gop set 2 to
manually lower the resolution.

- This behavior was able to be replicated in qemu by setting the resolution to
8k
- This was found when using a Lenovo Thinkvision P40w-20 monitor with WUHD
(5120 x 2160) resolution
- Nvidia graphics card A1000 , but most likely able to replicate so long as the
resolution is above 4k, as someone else was able to replicate this in qemu that
does not have this graphics card.

I suspect this is a serious issue because we might start seeing more monitors
over 4k in the wild.

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