Bug ID: 218800
           Summary: USB Keyboard Interrupts messing with VGA Output
           Product: Base System
           Version: 11.0-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: usb

Created attachment 181986
Dmesg output

My system is having issues with USB keyboards and VGA output. When I type on
the keyboard, the text is slow to display (on the order of seconds usually).
Sometimes, it doesn't show up at all. However, if I mash keys on the keyboard
(like Ctrl, Shift, Esc, etc), it will actually update the screen. On occasion
when I reboot, the system will not shutdown unless I continually press keys on
the keyboard, as if the system is halting unless there is an interrupt.

In addition, I am able to setup networking with SSH. When I SSH into the
system, it seems to work fine remotely. I don't have any of these issue in my
SSH session.

I have checked vmstat -i for interrupt storms, but the interrupt levels are
normal. I have attached usbdump, dmesg, and pciconf logs below.

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