Public bug reported:
In order to enable X11 forwarding from an external host you must
explicitly set the Xserver to listen by overriding the xserver-command.
Previously you could set the xserver-allow-tcp=true and it would do this
automatically.
I would have expected this change in behaviour to show up in
README.Debian.gz but since it did not, perhaps the functionality of the
"xserver-allow-tcp=true" is not working as expected.
Below shows my before (no TCP listener on 6000) and after (TCP listener
on 6000) lightdm.conf to re-enable the listener after the 15.04 upgrade.
Before (14.10):
~$ cat /etc/lightdm/lightdm.conf
[SeatDefaults]
xserver-allow-tcp=true
After (15.04):
~$ cat /etc/lightdm/lightdm.conf
[SeatDefaults]
xserver-command=X -core -listen tcp
xserver-allow-tcp=true
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: lightdm 1.14.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Apr 27 17:33:26 2015
InstallationDate: Installed on 2014-12-18 (130 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
LightdmConfig:
[SeatDefaults]
xserver-command=X -core -listen tcp
xserver-allow-tcp=true
SourcePackage: lightdm
UpgradeStatus: Upgraded to vivid on 2015-04-27 (0 days ago)
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug third-party-packages vivid
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https://bugs.launchpad.net/bugs/1449282
Title:
lightdm tcp listen requires additional configuration
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