#15 workaround does NOT work for me.

My issue is specific to accessing an audio CD in an external USB CD drive.

The issue surfaced when I upgraded the Ubuntu 16.04 kernel from 4.4.0-59 to 4.4.0-62.

Booting under the older 4.4.0-59 kernel does NOT restore functionality.

At the same time I upgraded the kernel I also upgraded several packages (apt-get upgrade). I suspect the bug was introduced in one of these packages.


List of packages upgraded:

gstreamer1.0-plugins-ugly-amr:amd64 (1.8.2-1ubuntu0.1, 1.8.3-1ubuntu0.1)
liboxideqt-qmlplugin:amd64 (1.19.4-0ubuntu0.16.04.1, 1.20.4-0ubuntu0.16.04.1)
libkrb5-3:amd64 (1.13.2+dfsg-5ubuntu1, 1.13.2+dfsg-5ubuntu2)
libkrb5-3:i386 (1.13.2+dfsg-5ubuntu1, 1.13.2+dfsg-5ubuntu2)
libgssapi-krb5-2:amd64 (1.13.2+dfsg-5ubuntu1, 1.13.2+dfsg-5ubuntu2)
libgssapi-krb5-2:i386 (1.13.2+dfsg-5ubuntu1, 1.13.2+dfsg-5ubuntu2)
gstreamer1.0-alsa:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.1)
liboxideqtquick0:amd64 (1.19.4-0ubuntu0.16.04.1, 1.20.4-0ubuntu0.16.04.1)
libdrm-nouveau2:amd64 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
libdrm-nouveau2:i386 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
os-prober:amd64 (1.70ubuntu3, 1.70ubuntu3.3)
linux-libc-dev:amd64 (4.4.0-59.80, 4.4.0-62.83)
liboxideqtcore0:amd64 (1.19.4-0ubuntu0.16.04.1, 1.20.4-0ubuntu0.16.04.1)
gstreamer1.0-plugins-base-apps:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.1)
openssl:amd64 (1.0.2g-1ubuntu4.5, 1.0.2g-1ubuntu4.6)
libgnutls-openssl27:amd64 (3.4.10-4ubuntu1.1, 3.4.10-4ubuntu1.2)
ntfs-3g:amd64 (1:2015.3.14AR.1-1build1, 1:2015.3.14AR.1-1ubuntu0.1)
gstreamer1.0-tools:amd64 (1.8.2-1~ubuntu1, 1.8.3-1~ubuntu0.1)
iucode-tool:amd64 (1.5.1-1, 1.5.1-1ubuntu0.1)
gstreamer1.0-plugins-good:amd64 (1.8.2-1ubuntu0.3, 1.8.3-1ubuntu0.3)
libglapi-mesa:amd64 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
libglapi-mesa:i386 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
humanity-icon-theme:amd64 (0.6.10, 0.6.10.1)
sudo:amd64 (1.8.16-0ubuntu1.2, 1.8.16-0ubuntu1.3)
google-chrome-stable:amd64 (56.0.2924.76-1, 56.0.2924.87-1)
console-setup-linux:amd64 (1.108ubuntu15.2, 1.108ubuntu15.3)
open-vm-tools:amd64 (2:10.0.7-3227872-2ubuntu1, 2:10.0.7-3227872-5ubuntu1~16.04.1)
libxatracker2:amd64 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
libk5crypto3:amd64 (1.13.2+dfsg-5ubuntu1, 1.13.2+dfsg-5ubuntu2)
libk5crypto3:i386 (1.13.2+dfsg-5ubuntu1, 1.13.2+dfsg-5ubuntu2)
gstreamer1.0-plugins-bad:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.2)
console-setup:amd64 (1.108ubuntu15.2, 1.108ubuntu15.3)
libegl1-mesa:amd64 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
gstreamer1.0-plugins-base:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.1)
gstreamer1.0-plugins-base:i386 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.1)
libklibc:amd64 (2.0.4-8ubuntu1.16.04.2, 2.0.4-8ubuntu1.16.04.3)
gstreamer1.0-plugins-bad-videoparsers:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.2)
libwxgtk3.0-0v5:amd64 (3.0.2+dfsg-1.3, 3.0.2+dfsg-1.3ubuntu0.1)
libgstreamer-plugins-good1.0-0:amd64 (1.8.2-1ubuntu0.3, 1.8.3-1ubuntu0.3)
gstreamer1.0-pulseaudio:amd64 (1.8.2-1ubuntu0.3, 1.8.3-1ubuntu0.3)
libgbm1:amd64 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
krb5-locales:amd64 (1.13.2+dfsg-5ubuntu1, 1.13.2+dfsg-5ubuntu2)
libdrm-amdgpu1:amd64 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
libdrm-amdgpu1:i386 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
docker-engine:amd64 (1.13.0-0~ubuntu-xenial, 1.13.1-0~ubuntu-xenial)
im-config:amd64 (0.29-1ubuntu12.3, 0.29-1ubuntu12.4)
libkrb5support0:amd64 (1.13.2+dfsg-5ubuntu1, 1.13.2+dfsg-5ubuntu2)
libkrb5support0:i386 (1.13.2+dfsg-5ubuntu1, 1.13.2+dfsg-5ubuntu2)
gstreamer1.0-plugins-bad-faad:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.2)
libwayland-egl1-mesa:amd64 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
oxideqt-codecs-extra:amd64 (1.19.4-0ubuntu0.16.04.1, 1.20.4-0ubuntu0.16.04.1)
libgstreamer-plugins-base1.0-0:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.1)
libgstreamer-plugins-base1.0-0:i386 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.1)
libdrm2:amd64 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
libdrm2:i386 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
gstreamer1.0-x:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.1)
appmenu-qt5:amd64 (0.3.0+16.04.20151130-0ubuntu1, 0.3.0+16.04.20151130-0ubuntu2)
libwebkit2gtk-4.0-37:amd64 (2.14.2-0ubuntu0.16.04.1, 2.14.3-0ubuntu0.16.04.1)
libwxbase3.0-0v5:amd64 (3.0.2+dfsg-1.3, 3.0.2+dfsg-1.3ubuntu0.1)
gir1.2-gst-plugins-base-1.0:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.1)
libhogweed4:amd64 (3.2-1, 3.2-1ubuntu0.16.04.1)
libhogweed4:i386 (3.2-1, 3.2-1ubuntu0.16.04.1)
libgl1-mesa-dri:amd64 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
libgl1-mesa-dri:i386 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
keyboard-configuration:amd64 (1.108ubuntu15.2, 1.108ubuntu15.3)
libnettle6:amd64 (3.2-1, 3.2-1ubuntu0.16.04.1)
libnettle6:i386 (3.2-1, 3.2-1ubuntu0.16.04.1)
gstreamer1.0-libav:amd64 (1.8.2-1~ubuntu1, 1.8.3-1ubuntu0.1)
libgl1-mesa-glx:amd64 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
libgl1-mesa-glx:i386 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
indicator-application:amd64 (12.10.1+15.04.20150128-0ubuntu1, 12.10.1+16.04.20170120-0ubuntu1)
gir1.2-webkit2-4.0:amd64 (2.14.2-0ubuntu0.16.04.1, 2.14.3-0ubuntu0.16.04.1)
libgnutls30:amd64 (3.4.10-4ubuntu1.1, 3.4.10-4ubuntu1.2)
libgnutls30:i386 (3.4.10-4ubuntu1.1, 3.4.10-4ubuntu1.2)
libdrm-intel1:amd64 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
libdrm-intel1:i386 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
firefox:amd64 (51.0.1+build2-0ubuntu0.16.04.1, 51.0.1+build2-0ubuntu0.16.04.2)
gir1.2-gstreamer-1.0:amd64 (1.8.2-1~ubuntu1, 1.8.3-1~ubuntu0.1)
libdrm-radeon1:amd64 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
libdrm-radeon1:i386 (2.4.67-1ubuntu0.16.04.2, 2.4.70-1~ubuntu16.04.1)
libxpm4:amd64 (1:3.5.11-1, 1:3.5.11-1ubuntu0.16.04.1)
mesa-vdpau-drivers:amd64 (11.2.0-1ubuntu2.2, 12.0.6-0ubuntu0.16.04.1)
linux-firmware:amd64 (1.157.6, 1.157.8)
libjavascriptcoregtk-4.0-18:amd64 (2.14.2-0ubuntu0.16.04.1, 2.14.3-0ubuntu0.16.04.1)
klibc-utils:amd64 (2.0.4-8ubuntu1.16.04.2, 2.0.4-8ubuntu1.16.04.3)
libgstreamer-plugins-bad1.0-0:amd64 (1.8.2-1ubuntu0.2, 1.8.3-1ubuntu0.2)
libgstreamer1.0-0:amd64 (1.8.2-1~ubuntu1, 1.8.3-1~ubuntu0.1)
libgstreamer1.0-0:i386 (1.8.2-1~ubuntu1, 1.8.3-1~ubuntu0.1)
libwebkit2gtk-4.0-37-gtk2:amd64 (2.14.2-0ubuntu0.16.04.1, 2.14.3-0ubuntu0.16.04.1)
gir1.2-javascriptcoregtk-4.0:amd64 (2.14.2-0ubuntu0.16.04.1, 2.14.3-0ubuntu0.16.04.1)
libssl1.0.0:amd64 (1.0.2g-1ubuntu4.5, 1.0.2g-1ubuntu4.6)
libssl1.0.0:i386 (1.0.2g-1ubuntu4.5, 1.0.2g-1ubuntu4.6)
base-files:amd64 (9.4ubuntu4.3, 9.4ubuntu4.4)
gstreamer1.0-plugins-ugly:amd64 (1.8.2-1ubuntu0.1, 1.8.3-1ubuntu0.1)