hi, @dlundquist , Dustin Lundquist, 
Did you test it on x230 with DisplayPort monitor?
Or it only existed when x230 is plugged with DVI on the dock?
Whether can following command change the brightness of LCD?

$ echo 100 | sudo tee /sys/class/bachlight/acpi_video0/brightness

or

$ echo 600 | sudo tee /sys/class/backlight/intel_backlight/brightness

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https://bugs.launchpad.net/bugs/1313830

Title:
  [Lenovo ThinkPad X230] LCD Backlight dims completely when
  disconnecting external monitor

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