Bug#914939: Tested other kernels

[Jakub Filo <plantroon@plantroon.com>]

This bug seems related to https://bugs.freedesktop.org/show_bug.cgi?id=107573#c12

Kernel series 4.18 is affected by this bug. The bug is fixed in kernel series 4.19 (tested 4.19.5-1~exp1 from experimental)

4.9.110-3 (stretch) is the last stretch kernel not affected.

4.9.130-2 (current stretch) is affected.

4.9.135-1 (stretch-proposed) is affected.