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Of course, this monitor has sharpening problems with my dell's e6400 nVidia over hdmi it works fine when connected digitally to one of my pc's with ATI card. screen menu shot's DVI when connected to ATI. and shows HDMI when connected to NVidia Using nVidia control panel I'm able to set up...

i reduced brightness and contrast to 0 and RGB tone to 0,0,0. the brightness is ok in this config. The lamp 100% produces solid light. 500 cdm is too bright for the eyes. dimming is implemented using pulse width modulation (PWM). that's what causing buzzing noise and flickering. 2-3 years...