Ubuntu
systemd package

logind says CanGraphical=no on nVidia-only setups

Bug #1365165 reported by Michał Sawicz on 2014-09-03

This bug report is a duplicate of: Bug #1365336: After upgrading lightdm, system boots to the tty1 terminal. Edit Remove

6

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	systemd (Ubuntu)	Triaged	Medium	Robert Ancell

Bug Description

I need to disable Optimus here to be able to use multimonitor on my laptop. This stopped starting X on last Friday.

<robert_ancell> I suspect that disabling Optimus is making logind think there's no video card
<robert_ancell> Saviq_, yeah, we changed to honoring what logind specifies, so before we just ignored CanGraphical as startx will also

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: systemd 208-8ubuntu1 [modified: usr/share/dbus-1/system-services/org.freedesktop.systemd1.service]
ProcVersionSignature: Ubuntu 3.16.0-12.18-generic 3.16.1
Uname: Linux 3.16.0-12-generic x86_64
NonfreeKernelModules: wl nvidia
ApportVersion: 2.14.7-0ubuntu1
Architecture: amd64
Date: Wed Sep 3 23:29:16 2014
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)

Tags:

Revision history for this message

Michał Sawicz (saviq) wrote on 2014-09-03:

#1

Dependencies.txt Edit (3.3 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (317 bytes, text/plain; charset="utf-8")

Robert Ancell (robert-ancell) on 2014-09-03

Changed in systemd (Ubuntu):
status:	New → Triaged
importance:	Undecided → Medium
assignee:	nobody → Robert Ancell (robert-ancell)

Revision history for this message

Robert Ancell (robert-ancell) wrote on 2014-09-03:

#2

Some logs: http://paste.ubuntu.com/8226876/

Revision history for this message

Michał Sawicz (saviq) wrote on 2014-09-03:

#3

lspci -vvv output Edit (37.6 KiB, text/plain)

Revision history for this message

Michał Sawicz (saviq) wrote on 2014-09-03:

#4

udevadm info --export-db output Edit (163.0 KiB, text/plain)

Revision history for this message

Michał Sawicz (saviq) wrote on 2014-09-04:

#5

In the mean time, downgrade lightdm to 1.11.7:

https://launchpad.net/ubuntu/+source/lightdm/1.11.7-0ubuntu1

summary:

- logind says CanGraphical=no with Optimus disabled
+ logind says CanGraphical=no on nVidia-only setups

Revision history for this message

Robert Ancell (robert-ancell) wrote on 2014-09-05:

#6

See bug 1365336 which may be the same thing. In particular it has some udev rules for marking nvidia drivers with the correct tags for logind to "do the right thing".

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