awef

Well for the moment, I went the legacy/fex route and it works fine. I'll have to circle back to this mainline dto thing a bit later. Thanks!

Thanks! Will give it a shot!

I think one thing I missed earlier is that it might be easier to use docker to compile a new kernel first (off board) since that's how armbian is "originally built" so to speak? For chip, I'm using a PCM5102 but the interface is "just i2s" with of course it's chip specific settings (wherever those are put in)

https://github.com/armbian/build/blob/master/patch/kernel/sunxi-next/00-20-add-i2s-DT-pins.patch

not yet clear on how to use all the above info yet, but I'm looking into it (in case the wizards here have more urgent matters to reply to)

https://forum.armbian.com/topic/5643-h3-i2s0-dt-overlay/

I just noticed there isn't a i2s/i2s0 overlay for the mainline kernel series: Linux orangepipcplus 4.14.78-sunxi #412 SMP Fri Oct 26 11:37:04 CEST 2018 armv7l GNU/Linux https://github.com/armbian/sunxi-DT-overlays/tree/master/sun8i-h3 Is it a simple matter of just adding some text files for DT? Or was i2s intentionally left out because or some conflict for example? (I had good luck with legacy on Banana Pi Pro a long time ago with fex, so I'm guessing it's a unintended omission?)

You probably have a board with a defective SD Card Detect Pin is my guess. I think the orange pi company doesn't check the card detect pin in their distros, so if you want your board to work, use the default distros rather than armbian for this board. Otherwise get the board fixed (realistically probably not worth the price of shipping back and forth)

Probably the case. The expansion connector 95% just converts pins into pretty shaped connectors that you're familiar with.

Thanks for the tip!

mostly everything on the expansion board is "brainless", so if it doesn't work, it's probably your main board

try playing some audio?

Just a FYI Previously using nmtui-connect and adding a Wifi Config would survive across reboots. With nightly: Armbian_5.26.170226_Orangepipcplus_Ubuntu_xenial_dev_4.10.0 I find that I must repeatedly use nmtui-connect and even then it creates additional NM connection profiles # nmcli c NAME UUID TYPE DEVICE MyWifi 60caede4-0d67-4e72-9696-6e9f76f9ec0a 802-11-wireless -- MyWifi 1 a4f778ff-e8b9-431c-ad70-98d3e32252bc 802-11-wireless -- No other OS mods (such as /etc/network/interfaces) were made After nand-sata-install only nmtui-connect was utilized

And clearing out that solder bridge... what a pain! Don't do that!

Interestingly enough, hard wiring SD CD to ground and having no SD card will generate constant errors. Right now, it's a bad idea You will get constant errors orangepipcplus login: [ 21.186031] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 8, RTO !! [ 21.199645] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 55, RTO !! [ 21.209426] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 55, RTO !! [ 21.219214] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 55, RTO !! [ 21.228940] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 55, RTO !! [ 21.238730] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 1, RTO !! [ 22.385924] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 8, RTO !! [ 22.396793] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 55, RTO !! [ 22.404493] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 55, RTO !! [ 22.412190] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 55, RTO !! [ 22.419900] sunxi-mmc 1c0f000.mmc: smc 0 err, cmd 55, RTO !!