Hot answers tagged display
Did you have the HDMI plugged into the same port on the TV? Some TVs have one HDMI port set to "PC Mode" which has no overscan. Your manual should tell you which. I had this problem with my WXGA capable 32" Philips TV. Any HDMI port other than HDMI1 and it would overscan like that.
The default shortcut for power detach is C-a D D. From man screen, section DEFAULT KEY BINDINGS: C-a d C-a C-d (detach) Detach screen from this terminal. C-a D D (pow_detach) Detach and logout. So you need to repeat the uppercase D, or customize your screen configuration.
No, there is no way to emulate a hardware sharpness control setting in software. You might theoretically be able to hook DWM in Vista or newer so that it'd have the effect of applying a sharpness filter to the entire framebuffer before displaying it, but that would require writing your own code to do so and would incur constant CPU load, and even then it ...
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