On Monday 07 November 2016 04:35:44 W. Martinjak wrote: > Gene, > > the symptoms point to a power supply problem. > It's the "famous" brown out problem, due to bad designed power > supplies. Sometimes it's the cable of the supply with excessive > voltage drop. Yes this is unfortunatly the price of getting cheaper > and cheaper.... And I assume, that the hdmi connection pulls more amps > then expected because the hdmi2dvi conversion. I had similar effects > with a bad hdmi cable. > One further negative impact of this brownouts is a degenerating > filesystem.
I will check that, when I take the 2nd u-sd card out and plug it in. I dd'd the same image from a dl about a week ago, hunted down those 2 messages about editing those 2 text files in the /boot directory, so theoretically it should at least boot and get a dhcp address. Then I start from scratch with all the other stuff I've done. However, any time I have hunted for a 5 volt source, its been a rock solid 5.11 volts. The 7i90HD has its own psu, so the load is the hdmi, ethernet, spi when its active, and 2 of those wireless mouse/keyboard buttons/dongles. Its a 2.5 amp supply, but if the orange pi has a compatible plug, it claims to be a 3.0 amp supply. At no point have I noted the power led as anything but dead steady in brightness. > A 1st discharge is a active usb hub for the keyboard, I thought of that, but Wally didn't have such a beast and I've not played rat terrier enough to locate an old one I may have laying around. > and should this not be sufficient then use a better/stronger power > supply. Which because the size of the current tree of multi-outlet adapters already in that box, will be replaced with a small 5 volt switcher before this is all done. Just bought a 5 amp enclosed switcher to do that off fleabay, s/b here by next Monday. And locate a term strip to feed it all from one piece of 14 ga sj. I do have doubts about the weak psu, but I'll check it anyway. With a scope. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
