Is that good or bad? What cpu? How big is the screen? What encoding?
It’s a Framework with 11th gen Intel i5. I’ve never seen it below 11W while doing this. I don’t recall the exact number I got in Debian 12 but I think it was in the 11-13W range. The numbers were similar with Ubuntu LTS which I used till about a year ago. Now I see 9-10W. The screen is 3:2 13". Not sure about the enconding but I have GPU decoding working in Firefox.
Not sure about the enconding
Right click on video -> Stats for Nerds
It’s a youtube video so whatever youtube is these days. I tested with this M1 Macbook Pro and it was using about 7 watts so 3 watts more is pretty good for pretty much anything. I think my 12th Gen. laptop typically draws about 13-15 doing the same thing, but with a much dimmer screen.
It fluctuated between 8.8W and 10.3W.
Your entire backlight is only 3w? I feel like my phone is over 3w.
Me with an older notebook that doesn’t support av1 decoding: 😭
There’s a browser extension called “Your Codecs.” which can prevent YouTube from serving you AV1-encoded videos.
I wish there were more M.2 cards beyond just SSDs and wireless NICs. The idea of a small form factor PICe interface is underutilized and things like hardware codec accelerators can keep laptops with older processors usable with new standards for longer. It’s sad how PCMCIA had an entire ecosystem of expansion cards yet we somehow decided that the much higher bandwidth M.2 is only for storage and networking. Hell, do what sound cards in the 90s/00s did and have M.2 SSDs specifically designed for upgrading older laptops that also have built in accelerators for the latest media standards. Hardware acceleration is energy efficient and can probably just be bundled into the flash controller like they’re bundled into the processor, and unless you have a top of the line SSD you’re probably not saturating the M.2 interface anyway.
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I’ve seen 10-12W easily on 4K for soc without av1. your soc (intel 11 gen) should support av1. try to play the video on mpv (with yt-dlp integration) with various hw acceleration options to see if it changes. probably your browser is software decoding.
for hardware decoding supported soc too I noticed 2-3W of extra power usage when playing youtube from website compared to mpv or freetube. the website seems doing inefficient js stuffs but I haven’t profiled it.
What command do you use to see the Watt used?
Powertop
( ͡° ͜ʖ ͡°)
and don’t forget the calibration before use
My phone uses like 30 on idle 🫠
That is very impressive! Although to be honest I question the accuracy of all those estimated power draws. I would be interested to see an endurance test of your battery- assuming your battery capacity is accurate, your runtime on a full charge should line up with your power draw.
