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With xrandr you can affect the gamma and brightness of a display by altering RGB values. From man xrandr: --brightness Multiply the gamma values on the crtc currently attached to the output to specified floating value. Useful for overly bright or overly dim outputs. However, this is a software only modification, if your hardware has support to ...


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Ok guys, here's the problem: Using the Thinkpad Ultra Dock, all connected displays are internally handled by a Displayport hub. Sadly, Linux can't differante multiple monitors using the Displayport MST hub. Read it up here: http://www.thinkwiki.org/wiki/ThinkPad_Ultra_Dock Linux does not yet offer explicit support for the DisplayPort MST hub built into ...


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use vidcontrol MODE_xxx For example to have a screen 1024x768x24, in the console : # vidcontrol MODE_280 To know which mode you can be interested in, in the console : # vidcontrol -i mode The left column gives you the number you have to put after MODE_



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