no video, not even while the green led is busy doing whatever. I've taken the first monitor back and traded it for one in a sealed box, but no video on it either, this with the hdmi_drive turned up to 8. The monitor simply does not sense the signal. I've taken the monitor to the rpi3 running the lathe, and it displays the rpi3b's 1920x1080 normally.
So I guess the $16 micro to std hdmi adapter is not working. I have 2 more real cheap, $3.50 a pair, coming from banggood along with that massive heat sink, so it looks as if the rp-4 is going to stay cold till those get here, no clue when since the chinese stuff might be shipping by donkey cart. I hope they ae good swimmers. lol.
I did find a 64G with a RealtimePi conversion of raspian stretch on it that runs the lathe, ok, albeit with glacial video. So I guess until the rp4 decides to make video, thats what I'm running with. I have another project for the 6040 gantry machine, I need to make some curtain hanger sliders for a 30 yo popup camper some friends own, and he's had some health problems, currently emptying a bag glued to a hole in his side for his excrement, so it hasn't turned a wheel in several years. But I told his missus I'd make some. So somewhere along the line I should round up a round tuit and write some gcode. Step and repeat thing, I've a 4 foot stick of white delrin, 1" b y 1/2" that I should be able get 35 or so of them out of. That will be about 3 sets of spares.
Putting your realtime kernel on a card with an pi3b buster 1.1 install on it, only partially boots with several pages of errors on the pi3b, so I assume its for an rpi4 only. Doesn't show any video on the rpi4. rpi4's green led looks like its booting to something, but I'm blind w/o working video of any kind.
Take care.
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 <
geneslinuxbox.net:6309/gene
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