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Published 20 hours ago • verified publisher icon tkurki

Turn off hdmi to conserver power

Open tkurki opened this issue 8 years ago • 4 comments

https://glframebuffer.wordpress.com/2013/08/28/raspberrypi-how-to-turn-off-hdmi-from-raspberry-pi/

tkurki avatar Oct 22 '16 18:10 tkurki

Is this only about conserving the power of an attached monitor, or do you know if it also reduces the power consumption of the Pi's video core? If the latter is true, then this would make sense to headless setups as well.

hkapanen avatar Oct 23 '16 15:10 hkapanen

This discussion would hint at less power being consumed for headless setups. Anybody care to measure it?

joux3 avatar Oct 23 '16 15:10 joux3

Yep, power saving in headless setup was the point here. The issue description was pretty minimal, sorryyyy.

tkurki avatar Oct 23 '16 19:10 tkurki

OK - I can see a benefit in order of 10mA (0.28->0.27A) on a headless RPI3 idling on a WLAN. No more digits available from my el-cheapo USB power meter.

hkapanen avatar Oct 24 '16 10:10 hkapanen