Thank you for the tip. This issue with inability to shut down the BBB (after switch from USB power to battery) seems to relate RT kernel and Ralink wifi mt7601u module since my new non-RT kernel Linux beaglebone 4.19.94+ #1 SMP PREEMPT Wed Apr 29 18:35:21 CEST 2020 armv7l GNU/Linux works ok. I can switchoff BBB using onboard on/off button. Yes my LiPo battery is wired to the onboard 4pin terminal. I use this battery in one, exclusive purpose: to shutdown/poweroff debian when power is lost. I expect BBB (powered by battery) to immediately initiate shutdown procedure.
Until recently I use the patch for tps65217: https://github.com/miero/linux-dev/blob/botic7-v48/patches/botic/0012-tps65217-force-low-noise-fixed-frequency.patch and it worked very well. However the author of the patch seems to abandon maintaining his patches to BBB. I tried to patch newer kernel but it gives me errors (probably tps65217 driver has been rewritten) . I don't know programming in C language I'm not a coder just music enthusiast and use BBB as a music player. I would like to ask how to restore the previous functionality (e.g. shutdown from battery power supply). Maybe there are some scrips or new patches for this task? what do you recommend? Regards, Bern -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/88d256b5-5527-4cf4-a5ae-545f179095e1%40googlegroups.com.
