I'm afraid if you're getting undervolt warnings that's almost certainly
the cause of any serious issues like kernel hangs. The lightning bolt
not being visible simply means that the undervolt condition is not
sustained, but nevertheless any such warnings indicate that your power
supply is dropping
** Attachment added: "`apport-cli linux` output"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1889637/+attachment/5428751/+files/launchpad.bug
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Package changed: ubuntu => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1889637
Title:
Raspberry Pi 3B hangs - dev_pm_opp_set_rate: failed to find current
OPP, Failed to get t
Thank you for taking the time to report this bug and helping to make
Ubuntu better. It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general. It is important that bug reports be filed about source
packages so that people
