vt1-6 getting stuck or blank

[Michał Sawicz]

It's happening from time to time that my vt1-6 are getting stuck (showing tty1 and no input) or blank (just black) completely.

Restarting system-getty.slice or console-getty.slice doesn't help.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: util-linux 2.27.1-6ubuntu3.1
ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
Uname: Linux 4.4.0-24-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Jun 24 10:00:54 2016
InstallationDate: Installed on 2016-05-06 (48 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: util-linux
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
InstallationDate: Installed on 2016-05-06 (48 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Dell Inc. XPS 12-9Q33
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
Package: systemd 229-4ubuntu6
PackageArchitecture: amd64
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-24-generic.efi.signed root=ZFS=/root ro root=ZFS=username-laptop/root quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
SystemdDelta:
 [EXTENDED] /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf
 [EXTENDED] /lib/systemd/system/systemd-timesyncd.service → /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf
 [EXTENDED] /etc/systemd/system/display-manager.service → /lib/systemd/system/display-manager.service.d/xdiagnose.conf

 3 overridden configuration files found.
Tags: xenial
Uname: Linux 4.4.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sbuild sudo
_MarkForUpload: True
dmi.bios.date: 04/15/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: XPS 12-9Q33
dmi.board.vendor: Dell Inc.
dmi.board.version: A06
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd04/15/2014:svnDellInc.:pnXPS12-9Q33:pvrA06:rvnDellInc.:rnXPS12-9Q33:rvrA06:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.name: XPS 12-9Q33
dmi.product.version: A06
dmi.sys.vendor: Dell Inc.

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Michał Sawicz (saviq)]

apport information

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alberto Salvia Novella (es20490446e)]

If you are still experiencing this bug, please set status back to confirmed.

[Michał Sawicz (saviq)]

Yes, my VTs are blank right now (and I've seen it on other machines, too).

[Phillip Susi (psusi)]

Are you using a proprietary graphics driver? When it gets stuck, can you try typing a command such as "touch foo" and see if a file named foo is created? In other words, is it only the display that is broken but the input works fine?

[Jesper Noer (noer)]

I have no proprietary graphics driver.

With blank screen I was able to log in and create a file so input is
working fine, but no screen output

On Wed, Oct 5, 2016 at 11:18 AM, Phillip Susi <email address hidden> wrote:

> Are you using a proprietary graphics driver? When it gets stuck, can
> you try typing a command such as "touch foo" and see if a file named foo
> is created? In other words, is it only the display that is broken but
> the input works fine?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1595963
>
> Title:
> vt1-6 getting stuck or blank
>
> Status in systemd package in Ubuntu:
> Confirmed
> Status in util-linux package in Ubuntu:
> Confirmed
>
> Bug description:
> It's happening from time to time that my vt1-6 are getting stuck
> (showing tty1 and no input) or blank (just black) completely.
>
> Restarting system-getty.slice or console-getty.slice doesn't help.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 16.04
> Package: util-linux 2.27.1-6ubuntu3.1
> ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
> Uname: Linux 4.4.0-24-generic x86_64
> NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
> ApportVersion: 2.20.1-0ubuntu2.1
> Architecture: amd64
> CurrentDesktop: Unity
> Date: Fri Jun 24 10:00:54 2016
> InstallationDate: Installed on 2016-05-06 (48 days ago)
> InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
> (20160420.1)
> SourcePackage: util-linux
> UpgradeStatus: No upgrade log present (probably fresh install)
> ---
> ApportVersion: 2.20.1-0ubuntu2.1
> Architecture: amd64
> CurrentDesktop: Unity
> DistroRelease: Ubuntu 16.04
> InstallationDate: Installed on 2016-05-06 (48 days ago)
> InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
> (20160420.1)
> MachineType: Dell Inc. XPS 12-9Q33
> NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
> Package: systemd 229-4ubuntu6
> PackageArchitecture: amd64
> ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-24-generic.efi.signed
> root=ZFS=/root ro root=ZFS=username-laptop/root quiet splash vt.handoff=7
> ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
> SystemdDelta:
> [EXTENDED] /lib/systemd/system/rc-local.service →
> /lib/systemd/system/rc-local.service.d/debian.conf
> [EXTENDED] /lib/systemd/system/systemd-timesyncd.service →
> /lib/systemd/system/systemd-timesyncd.service.d/disable-
> with-time-daemon.conf
> [EXTENDED] /etc/systemd/system/display-manager.service →
> /lib/systemd/system/display-manager.service.d/xdiagnose.conf
>
> 3 overridden configuration files found.
> Tags: xenial
> Uname: Linux 4.4.0-24-generic x86_64
> UpgradeStatus: No upgrade log present (probably fresh install)
> UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sbuild sudo
> _MarkForUpload: True
> dmi.bios.date: 04/15/2014
> dmi.bios.vendor: Dell Inc.
> dmi.bios.version: A06
> dmi.board.name: XPS 12-9Q33
> dmi.board.vendor: Dell Inc.
> dmi.board.version: A06
> dmi.chassis.type: 8
> dmi.chassis.vendor: Dell Inc.
> dmi.chassis.version: Not Specified
> ...

[Phillip Susi (psusi)]

And you can't identify any pattern or cause for it going dead? It just happens randomly after it had been working fine? And switching to another tty and back doesn't help?

[Jesper Noer (noer)]

After a fresh reboot it was working fine, but today after the laptop has been suspended the tty is just blank. I usually use the KDE desktop, so I'm just switching to a tty from time to time. Not sure if there is a connection between suspending and blank screen, but it is possible.

[Phillip Susi (psusi)]

When the tty goes blank though, can you still switch to the KDE desktop, and back to the tty? And is it still blank if and when you do?

[Michał Sawicz (saviq)]

Yes, when it was blank, it was blank until a reboot. Switching VTs worked fine.

I've upgraded to yakkety now and have not been able to reproduce yet.

[Phillip Susi (psusi)]

If you can reproduce it, let us know and we'll try to get a better handle on it. Had you already logged in on that terminal before, or was it supposed to still be sitting at the login prompt?

[Launchpad Janitor (janitor)]

[Expired for util-linux (Ubuntu) because there has been no activity for 60 days.]