[noggin]

You often get skips/drops at the beginning of a file or if you skip around. That's normal in my experience. However if you see the skip/drop count continue to increase whilst in play, and aren't doing something funny with frame rates, then that is more of a worry.

In my experience OpenElec on Intel (including the i5 Haswell NUC) defaults to limited "Broadcast/Studio" 16-235 output (this may be if you select a "Broadcast" resolution for output (1280x720, 1920x1080)) so you won't get crushed blacks and clipped whites in this situation if you are feeding a normal 16-235 HDMI display (and almost all consumer HDMI gear is 16-235 by default - as that is the video range used for DVD, Blu-ray, Broadcast TV etc., and TVs, by default, would expect 16-235 level sources)

If you are feeding a "Full" or "PC" level display - which expects 0-255 video range, you may experience milky blacks, desaturated colours and dull whites then you may need to alter the xrandr stuff to alter to "Full" range.

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i have a keyboard with a built in touchpad, does anyone know how i can wake my NUC from sleep using only the keyboard but not the touchpad part?

annoying when i accidentally touch the touchpad and it turns on

tried disabling power management on the mouse but it still turns on

I think "Power on USB" is very basic - when it detects USB activity it powers on. This happens upstream of Windows in the BIOS I believe, though I may be wrong.

I think the only way around it would be if your touchpad had a disable option within it (like some laptops do)