Comment # 5 on bug 1158190 from Michael Meeks

Interesting the latest (?) 42.3 kernel:

Linux dell.home 4.4.180-102-default #1 SMP Mon Jun 17 13:11:23 UTC 2019
(7cfa20a) x86_64 x86_64 x86_64 GNU/Linux

is also showing the problem; hmm.