Public bug reported:
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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful
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https://bugs.launchpad.net/bugs/1729635
Title:
No display after upgrading to 17.10 with kernel 4.13
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