Re: RPI3B+ disable HDMI
Stefan Parvu <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.arm |
|---|---|
| Message-ID | <[email protected]> |
Thank you all for answers. Will experiment with these. At least we got a basic 12hrs run on a single charge, running Kronometrix data recorders (1 recorder up), ethernet cable on. Stefan > On 1. Nov 2020, at 4.22, bob prohaska <[email protected]> wrote: > > On Sat, Oct 31, 2020 at 09:59:38PM +0200, Stefan Parvu wrote: >> Hi, >> >> We have started now testing our product using FreeBSD 12.2 on RPI3 and 3B+. >> >> I have a question how one can start to disable things from the board which are not needed, to save as much as possible power. For example starting with HDMI port. I am trying to do some basic tests running our data recorders with FreeBSD 12.2 only on batteries. (4 x 18650 Li-ion 3500 mAh). Would it boot from batteries. Has anyone tried before this? > > At one time ISTR that no monitor in the HDMI port on powerup turned off > the port, at least to the extent that if a monitor was subsequently plugged > in it got no signal. Not sure if this is still true, nor whether it actually > reduced power consumption. > > hth, > > bob prohaska > _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-arm To unsubscribe, send any mail to "[email protected]"