Changing USB hub / port power on XP
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After years using USB I feel really stupid asking this. My LCD connected to Arduino powered via USB started flickering after I changed PC. I checked the port (hub) and it is set to 100mA. I have no real reason to think that my hardware should be using more than 100mA, but my real question is - can the USB port power setting be changed ( on XP) ? I think the LCD back-light LED is eating most of the power, unfortunately I cannot control its intensity. Bummer. Cheers Vaclav