Can not switch to virtual console (TTY)

Bug #1811402 reported by Jarno Suni on 2019-01-11
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
light-locker (Ubuntu)
Undecided
Unassigned
nvidia-graphics-drivers-340 (Ubuntu)
Undecided
Unassigned

Bug Description

If I try to switch to a virtual console by Ctrl-Alt-F1 or greater (up to Ctrl-Alt-F6), screen is black. But I can return by Ctrl-Alt-F7 (if light-locker is not used).
This happens with nvidia-340 driver (I am using version 340.107-0ubuntu0.18.04.1 from bionic-updates), but not with nouveau driver.

This bug also breaks light-locker, suspend to RAM, switching user and maybe something else.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: light-locker 1.8.0-1ubuntu1
ProcVersionSignature: Ubuntu 4.18.0-13.14~18.04.1-generic 4.18.17
Uname: Linux 4.18.0-13-generic x86_64
NonfreeKernelModules: wl nvidia
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: XFCE
Date: Fri Jan 11 16:17:15 2019
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-01-05 (735 days ago)
InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
SourcePackage: light-locker
UpgradeStatus: No upgrade log present (probably fresh install)

Jarno Suni (jarnos) wrote :

According to your bug description, this it not a bug in light-locker.

Is it a new problem that appeared after a kernel or nvidia driver update?

Jarno Suni (jarnos) wrote :

If I switch from nvidia-340 to nouveau driver, the problem disappears.

Jarno Suni (jarnos) on 2019-01-12
summary: - Freezes desktop
+ Can not switch to terminal by Ctrl-Alt-F1
Changed in light-locker (Ubuntu):
status: New → Invalid
Jarno Suni (jarnos) on 2019-01-12
description: updated
Jarno Suni (jarnos) on 2019-01-12
description: updated
description: updated
summary: - Can not switch to terminal by Ctrl-Alt-F1
+ Can not switch to virtual console (TTY) by Ctrl-Alt-F1
description: updated
Jarno Suni (jarnos) on 2019-01-12
summary: - Can not switch to virtual console (TTY) by Ctrl-Alt-F1
+ Can not switch to virtual console (TTY)
Jarno Suni (jarnos) on 2019-01-12
description: updated
Jarno Suni (jarnos) on 2019-01-12
description: updated

Maybe related to bug 1760068.

Jarno Suni (jarnos) wrote :

I reported this by nvidia-bug-report.sh

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