On Wednesday 18 September 2019 08:51:31 David wrote: > On Wed, 18 Sep 2019 at 21:46, Gene Heskett <ghesk...@shentel.net> wrote: > > Does anyone have some typical scope waveforms pix that would show > > what a working hdmi socket has for signals? > > There are no analog signals on the HDMI connector. Only several pairs > of conductors for different clocked serial data. > > Also, if the CPU and the monitor have not been able to have an EDID > conversation at the appropriate moment in the boot process, then I > wouldn't be surprised if there's very little signal activity after > that fails. > > So I doubt the CRO's gonna help you. Most likely I imagine that you > just need the appropriate monitor cable with the correct digital > signals and connectors at each end, simple as that. > > Did you test it yet?
Not yet, but see an earlier post, the thing is alive and present on my local net. Currently with a raspbian 9 card in it. It was at a duplicate address of the rpi3 because the card had been in the 3 and configured to its name & address, changed all that to unique stuff, rebooted and still there, just no local video. Now, after I make coffee, fix the rest of the local nets /etc/hosts files. Then I can play some more. :) Like hook up a mesa 7i90 interface card and find out if the new spi driver works. 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene>
