(In reply to Dave Addison from comment #10) > Created attachment 850753 [details] > output of diff command comparing two pm8001 directories > > In case it's of any use, this is the output of "diff -ruN" comparing the > pm8001 directories from the kernel source trees for 5.3.18-lp152.75 and > 5.3.18-57.3 Not helpful at all, which is why I haven't tried to figure it out from the diffs: there are a *bunch* of diffs. Better to figure out the actual problem IMHO.