Comment 37 for bug 1726930

That's because what I instructed in #15 makes laptop-mode-tools ineffective to USB hotplug events. Not something that a user would want.

As I see from the reports, this is what I think is happening.

1) Users have some combination of usb devices, getting hotplugged upon discovery.
2) Step 1 results in early invocation of LMT.
3) Which further results in file systems getting ro mounted. This step is still erratic and I have no clue what the calling parent is, to this ro mount.

For users who've confirmed that #15 in the workaround works.
Can you please apply the workaround, successfully boot, then change back the changes to its original, and then hotplug a USB device ?
This will trigger the same chain of events, just that they'll be triggered upon full boot. Which should give us some insight into what may actually be behaving erratic.