No display after upgrading to 17.10 with kernel 4.13

[Gilbert Dion]

Right after grub is loaded, the screen goes black. The boot process goes normally however. I can enter my session and shut down the computer like I would with eyes closed, knowing what keyboard keys to hit.

Display is back on when selecting a recovery session, like this one, i.e. a Xorg session (otherwise I could not report this). Same Xorg low graphics occurs when adding nomodeset to grub parameters, which gives me a 1920x1440 display instead of 2560x1440.

PLease note that the grub parameter "acpi_backlight=none" is mandatory in order to get the display back after a sleep mode. This was not the case with previous kernel.

I do not know if this will help, but note that I have always had problems with the graphic card. After sleep mode the display always comes back at full brightness no matter what low settings it was before the sleep mode.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-16-generic 4.13.0-16.19
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gilbert 28962 F.... pulseaudio
 /dev/snd/controlC1: gilbert 28962 F.... pulseaudio
CurrentDesktop: Unity:Unity7:ubuntu
Date: Thu Nov 2 11:44:39 2017
HibernationDevice: RESUME=UUID=909ad59a-dce8-4e98-b3fe-28db48e55878
InstallationDate: Installed on 2017-01-09 (297 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
MachineType: Apple Inc. iMac10,1
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=341524db-b27a-47bc-a41a-0cf8ded79b42 ro recovery nomodeset
RelatedPackageVersions:
 linux-restricted-modules-4.13.0-16-generic N/A
 linux-backports-modules-4.13.0-16-generic N/A
 linux-firmware 1.169
SourcePackage: linux
UpgradeStatus: Upgraded to artful on 2017-10-25 (8 days ago)
dmi.bios.date: 09/03/09
dmi.bios.vendor: Apple Inc.
dmi.bios.version: IM101.88Z.00CC.B00.0909031926
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F2268DC8
dmi.board.vendor: Apple Inc.
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 13
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F2268DC8
dmi.modalias: dmi:bvnAppleInc.:bvrIM101.88Z.00CC.B00.0909031926:bd09/03/09:svnAppleInc.:pniMac10,1:pvr1.0:rvnAppleInc.:rnMac-F2268DC8:rvr:cvnAppleInc.:ct13:cvrMac-F2268DC8:
dmi.product.family: Mac
dmi.product.name: iMac10,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[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 v4.14 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/v4.14-rc7

[Joseph Salisbury (jsalisbury)]

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report[0]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

Please follow the instructions on the wiki page[0]. The first step is to email the appropriate mailing list. If no response is received, then a bug may be opened on bugzilla.kernel.org.

Once this bug is reported upstream, please add the tag: 'kernel-bug-reported-upstream'.

[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel

[Joseph Salisbury (jsalisbury)]

It might also be good to test the latest mainline kernel, which is now v4.15-rc2:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc2

[Andy Whitcroft (apw)]

This bug was nominated against a series that is no longer supported, ie artful. The bug task representing the artful nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.