14:21 <LiquidAcid> pokazef, and got that fan working properly? ;)

15:00 <pokazef> LiquidAcid: I'm still working on it, but I need to take break for a few days, it's driving me crazy.

15:04 <pokazef> LiquidAcid: Believe it or not, right now my U3 refuses to boot when the serial console is disconnected

15:06 <pokazef> It looks like a defective power supply, but it somehow works with the old bootloader and kernel...

15:07 <LiquidAcid> pokazef, have you tried aplying this? https://github.com/tobiasjakobi/u-boot/commit/e67bfa793ae75ce54c96279f4ed5cf6e1170146f

15:08 <LiquidAcid> pokazef, your problem sounds similar, you can double-check by attaching the cable after the device "hangs", if you then find yourself on the u-boot prompt it would a pretty strong indicator that you'r seeing the same issue

15:13 <pokazef> LiquidAcid: I'll check that symptom when I resume working on it, thanks for the tip.

15:14 <pokazef> LiquidAcid: But as I recall, I wasn't getting any response whatsoever when attaching the serial adapter on the fly.

15:14 <LiquidAcid> pokazef, not even an echo?

15:15 <LiquidAcid> pokazef, that you won't get any direct output is obvious (if we assume that you're on the uboot prompt)

15:20 <pokazef> LiquidAcid: Oops, my bad. It seems I'm on the u-boot prompt.

15:23 <pokazef> LiquidAcid: I'll try applying your patch to u-boot and see how that goes.

15:24 <pokazef> LiquidAcid: But not today, though. I need to clear my head first.

15:24 <pokazef> How can this kind of problem happen with one power supply and not happen with another?

15:39 <pokazef> It reminds me a little of my Raspberry Pi days, when every USB bug was blamed on a faulty power supply :)

15:49 <LiquidAcid> pokazef, iirc the issue occured randomly -- since it disappears as soon as ethernet or hdmi is connected i would assume that it's a grounding issue with the pmic

16:09 <pokazef> LiquidAcid: Low-level power bugs are scary...

16:10 <pokazef> And by the way, is it possible to do any permanent damage when misconfiguring power management / voltage regulation stuff?

16:10 <LiquidAcid> pokazef, i'm not sure if this is really a power issue in the sense of the hdmi-current-feedback one

16:11 <LiquidAcid> pokazef, of course, so always check for any additional zeros when setting regulator voltages ;)

16:12 <pokazef> LiquidAcid: I'm not used to that kind of responsability when compiling a kernel...

16:12 <pokazef> I wish this kind of stuff stayed in hardware

16:14 <LiquidAcid> pokazef, just double-check everything if you're working in that area

16:15 <LiquidAcid> pokazef, what do you want to do anyway? add these 2ghz frequencies?

16:15 <pokazef> LiquidAcid: I see no reason why I should be, but thanks for the head-up anyway

16:16 <pokazef> LiquidAcid: Nope, I have no reason to touch any of it. It's just something I had been wondering.

16:20 <LiquidAcid> pokazef, then i wouldn't worry too much

16:21 <pokazef> LiquidAcid: OK, thanks

16:59 <pokazef> LiquidAcid: I just applied your patch to u-boot v2016.03 and I still get the same behavior.

17:00 <pokazef> Luckily, I can just use the other power supply, so it's not a big problem for now

17:00 <LiquidAcid> pokazef, hmm strange, no idea then

17:01 <pokazef> It's ok, thanks for the help

17:02 <pokazef> LiquidAcid: is there some backlog in the u-boot console that I could check, BTW?

17:03 <LiquidAcid> pokazef, you mean like some scrollback buffer?

17:03 <pokazef> yep

17:04 <LiquidAcid> hmm, not that i know of

17:04 <pokazef> Oh well