Hi, Harald. If there's no response, you've got to "bisect" the kernel source to find the cause. If you have ever compiled a kernel, and 4.17 is ok, then it will take an hour or so, but else, it can be a hassle. This Gentoo wiki article is a good instruction to bisect the kernel: https://wiki.gentoo.org/wiki/Kernel_git-bisect If you need some help, mail to me. (I'm not a kernel developer.) Regards, Teika
