Public bug reported:
My computer (using XUbuntu 16.04) boots and works normally with kernel
4.4.0-92 but upgrading to 4.4.0-96 prevents lightdm from starting. In
fact, the GPU detection service fails.
The problem also appears with proposed 4.4.0-97.
I tested with mainline kernel 4.13. It boots to lightdm but it is
difficult to exactly tell what happens as some modules for my hardware
were not found/compiled/installed (as a result, I cannot connect to wifi
with this kernel).
GPU is GEForce 840M with proprietary nvidia 475 drivers (purged and
reinstalled once).
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-92-generic 4.4.0-92.115
ProcVersionSignature: Ubuntu 4.4.0-92.115-generic 4.4.76
Uname: Linux 4.4.0-92-generic x86_64
NonfreeKernelModules: wl nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: yann 1476 F.... pulseaudio
/dev/snd/controlC0: yann 1476 F.... pulseaudio
CurrentDesktop: XFCE
Date: Mon Oct 9 15:40:16 2017
HibernationDevice: RESUME=UUID=d967f5cb-08d3-468b-b161-2e63743f0ccd
InstallationDate: Installed on 2016-07-18 (448 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Dell Inc. Latitude E7450
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-92-generic.efi.signed
root=UUID=4ad8fadb-26cb-4b9c-9d08-ae6b7f41d91f ro
RelatedPackageVersions:
linux-restricted-modules-4.4.0-92-generic N/A
linux-backports-modules-4.4.0-92-generic N/A
linux-firmware 1.157.12
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/05/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A16
dmi.board.name: 0NC6G7
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA16:bd05/05/2017:svnDellInc.:pnLatitudeE7450:pvr:rvnDellInc.:rn0NC6G7:rvrA01:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E7450
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1722269
Title:
No graphical boot with 4.4.0-96 and NVIDIA 475
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