Public bug reported:
This is 4.15.0-47-generic on a Dell Latitude 5580. Closing the laptop
lid will suspend the system, and opening it will resume, and I normally
get my xfce session or the xscreensaver unlock dialog. I recently
suspended in this manner, but upon opening the laptop lid, nothing came
up on the display. The power button was on, and the keyboard backlight
responded to keypresses. Ctrl-Alt-PrtScr-[REISUB] had no discernible
effect (PrtScr because I don't have SysRq on this keyboard). Neither
did Ctrl-Alt-Del or Ctrl-Alt-F1 for a console. I needed to poweroff and
poweron the laptop which of course caused the suspended session state to
be lost.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-47-generic 4.15.0-47.50
ProcVersionSignature: Ubuntu 4.15.0-47.50-generic 4.15.18
Uname: Linux 4.15.0-47-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
CurrentDesktop: XFCE
Date: Fri May 3 16:25:37 2019
HibernationDevice: RESUME=UUID=e77712df-7257-41aa-8062-076791733f67
InstallationDate: Installed on 2017-12-12 (507 days ago)
InstallationMedia: Xubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
MachineType: Dell Inc. Latitude 5580
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-47-generic
root=/dev/mapper/xubuntu--vg-root ro quiet splash nouveau.modeset=0 pci=nomsi
iommu=soft resume=/dev/disk/by-uuid/e77712df-7257-41aa-8062-076791733f67
vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-47-generic N/A
linux-backports-modules-4.15.0-47-generic N/A
linux-firmware 1.173.5
SourcePackage: linux
UpgradeStatus: Upgraded to bionic on 2018-10-30 (185 days ago)
dmi.bios.date: 09/12/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.6.4
dmi.board.name: 0FH6CJ
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.asset.tag: L05248
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.6.4:bd09/12/2017:svnDellInc.:pnLatitude5580:pvr:rvnDellInc.:rn0FH6CJ:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Latitude
dmi.product.name: Latitude 5580
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1827677
Title:
Resume from suspend: nothing on display, unable to login
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