Upgrade to linux 4.13.0-37-generic broke HDMI monitor

[Brecht]

After updating the kernel, my second monitor which is connected through HDMI stopped working. There is no signal detected. I am reasonably certain the kernel update is to blame. I performed an update with apt, autoremoved the previous kernel, and rebooted. After this, the monitor stayed black. Attached the relevant entries from apt history are included, indicating which packages were exactly updated.

Start-Date: 2018-03-14 20:11:51
Commandline: apt upgrade
Requested-By: brecht (1000)
Install: linux-signed-image-4.13.0-37-generic:amd64 (4.13.0-37.42, automatic), linux-image-extra-4.13.0-37-generic:amd64 (4.13.0-37.42, automatic), linux-headers-4.13.0-37-generic:amd64 (4.13.0-37.42, automatic), linux-headers-4.13.0-37:amd64 (4.13.0-37.42, automatic), linux-image-4.13.0-37-generic:amd64 (4.13.0-37.42, automatic)
Upgrade: linux-headers-generic:amd64 (4.13.0.36.38, 4.13.0.37.40), linux-libc-dev:amd64 (4.13.0-36.40, 4.13.0-37.42), linux-image-generic:amd64 (4.13.0.36.38, 4.13.0.37.40), keybase:amd64 (1.0.45-20180313160419.f0de728311, 1.0.45-20180314153959.acd706b851), linux-signed-image-generic:amd64 (4.13.0.36.38, 4.13.0.37.40), papirus-icon-theme:amd64 (20180311-2268+pkg18~ubuntu17.10.1, 20180314-2272+pkg18~ubuntu17.10.1), linux-signed-generic:amd64 (4.13.0.36.38, 4.13.0.37.40), firefox-locale-en:amd64 (59.0~b14+build1-0ubuntu0.17.10.1, 59.0+build5-0ubuntu0.17.10.1), firefox-locale-nl:amd64 (59.0~b14+build1-0ubuntu0.17.10.1, 59.0+build5-0ubuntu0.17.10.1), firefox:amd64 (59.0~b14+build1-0ubuntu0.17.10.1, 59.0+build5-0ubuntu0.17.10.1), linux-generic:amd64 (4.13.0.36.38, 4.13.0.37.40)
End-Date: 2018-03-14 20:13:19

Start-Date: 2018-03-14 20:14:44
Commandline: apt autoremove
Requested-By: brecht (1000)
Remove: linux-image-extra-4.13.0-32-generic:amd64 (4.13.0-32.35), linux-headers-4.13.0-32-generic:amd64 (4.13.0-32.35), libbotan-1.10-1:amd64 (1.10.16-1), linux-headers-4.13.0-32:amd64 (4.13.0-32.35), linux-image-4.13.0-32-generic:amd64 (4.13.0-32.35), linux-signed-image-4.13.0-32-generic:amd64 (4.13.0-32.35)
End-Date: 2018-03-14 20:15:00

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-37-generic 4.13.0-37.42
ProcVersionSignature: Ubuntu 4.13.0-37.42-generic 4.13.13
Uname: Linux 4.13.0-37-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: brecht 3585 F.... pulseaudio
CurrentDesktop: KDE
Date: Wed Mar 14 21:06:10 2018
HibernationDevice: RESUME=UUID=efdbd05c-0e51-415e-93d8-dca9b1b7fbf3
InstallationDate: Installed on 2017-10-10 (155 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
MachineType: Notebook W65_W67RZ
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-37-generic.efi.signed root=/dev/mapper/ssd-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.13.0-37-generic N/A
 linux-backports-modules-4.13.0-37-generic N/A
 linux-firmware 1.169.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/27/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.05.09
dmi.board.asset.tag: Tag 12345
dmi.board.name: W65_W67RZ
dmi.board.vendor: Notebook
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.09:bd05/27/2016:svnNotebook:pnW65_W67RZ:pvrNotApplicable:rvnNotebook:rnW65_W67RZ:rvrNotApplicable:cvnNotebook:ct10:cvrN/A:
dmi.product.family: Not Applicable
dmi.product.name: W65_W67RZ
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.16 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.16-rc4

[Joseph Salisbury (jsalisbury)]

Also, does this bug go away if you boot back into the prior kernel?

[Brecht (vercruyce)]

Today I retested it with a new HDMI cable, but it still didn't work. However, I again installed an update, after which the monitor did come back alive. I have been unable to reproduce the problem ever since. Perhaps, after all, there were other factors in play, but I have no clue as to the root cause.

The update that *might* have fixed the problem:

Start-Date: 2018-03-15 16:13:21
Commandline: apt upgrade
Requested-By: brecht (1000)
Upgrade: libcurl3:amd64 (7.55.1-1ubuntu2.3, 7.55.1-1ubuntu2.4), grub-common:amd64 (2.02~beta3-4ubuntu7.2, 2.02~beta3-4ubuntu7.3), grub2-common:amd64 (2.02~beta3-4ubuntu7.2, 2.02~beta3-4ubuntu7.3), isc-dhcp-common:amd64 (4.3.5-3ubuntu2.2, 4.3.5-3ubuntu2.3), qml-module-org-kde-solid:amd64 (5.43.0-0ubuntu1~ubuntu17.10~ppa1, 5.43.0-0ubuntu2~ubuntu17.10~ppa1), grub-efi-amd64-bin:amd64 (2.02~beta3-4ubuntu7.2, 2.02~beta3-4ubuntu7.3), firefox-trunk:amd64 (60.0~a1~hg20180311r407525-0ubuntu0.17.10.1~umd1, 61.0~a1~hg20180314r408098-0ubuntu0.17.10.1~umd1), libkf5solid5-data:amd64 (5.43.0-0ubuntu1~ubuntu17.10~ppa1, 5.43.0-0ubuntu2~ubuntu17.10~ppa1), grub-efi-amd64:amd64 (2.02~beta3-4ubuntu7.2, 2.02~beta3-4ubuntu7.3), grub-efi-amd64-signed:amd64 (1.85.2+2.02~beta3-4ubuntu7.2, 1.85.3+2.02~beta3-4ubuntu7.3), libkf5solid5:amd64 (5.43.0-0ubuntu1~ubuntu17.10~ppa1, 5.43.0-0ubuntu2~ubuntu17.10~ppa1), curl:amd64 (7.55.1-1ubuntu2.3, 7.55.1-1ubuntu2.4), isc-dhcp-client:amd64 (4.3.5-3ubuntu2.2, 4.3.5-3ubuntu2.3), libcurl3-gnutls:amd64 (7.55.1-1ubuntu2.3, 7.55.1-1ubuntu2.4)
End-Date: 2018-03-15 16:13:35

[Launchpad Janitor (janitor)]

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