Comment 16 for bug 1825420

I also reverted to Linux kernel 4.18.0-13-generic (The one that ships with Ubuntu 18.10) after upgrading to 19.04.

System: HP Spectre 13 v000nf, 8 GB Memory, Dual core Intel i5-6200U CPU @ 2.30 GHz, Intel HD Graphics 520 (Skylake GT2)

When running 'sudo apt upgrade' it complains about a missing dkms.conf file:

Setting up linux-headers-5.0.0-13-generic (5.0.0-13.14) ...
/etc/kernel/header_postinst.d/dkms:
Error! Could not locate dkms.conf file.
File: /var/lib/dkms/igfxdcd/1.1.11/source/dkms.conf does not exist.
run-parts: /etc/kernel/header_postinst.d/dkms exited with return code 4
dpkg: error processing package linux-headers-5.0.0-13-generic (--configure):
 installed linux-headers-5.0.0-13-generic package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of linux-headers-generic:
 linux-headers-generic depends on linux-headers-5.0.0-13-generic; however:
  Package linux-headers-5.0.0-13-generic is not configured yet.

dpkg: error processing package linux-headers-generic (--configure):
 dependency problems - leaving unconfigured
Setting up linux-image-5.0.0-13-generic (5.0.0-13.14) ...
No apport report written because the error message indicates its a followup error from a previous failure.
     dpkg: dependency problems prevent configuration of linux-generic:
 linux-generic depends on linux-headers-generic (= 5.0.0.13.14); however:
  Package linux-headers-generic is not configured yet.

dpkg: error processing package linux-generic (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
     Processing triggers for linux-image-5.0.0-13-generic (5.0.0-13.14) ...
/etc/kernel/postinst.d/dkms:
Error! Could not locate dkms.conf file.
File: /var/lib/dkms/igfxdcd/1.1.11/source/dkms.conf does not exist.
run-parts: /etc/kernel/postinst.d/dkms exited with return code 4
dpkg: error processing package linux-image-5.0.0-13-generic (--configure):
 installed linux-image-5.0.0-13-generic package post-installation script subprocess returned error exit status 1
No apport report written because MaxReports is reached already
                                                              Errors were encountered while processing:
 linux-headers-5.0.0-13-generic
 linux-headers-generic
 linux-generic
 linux-image-5.0.0-13-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)