** Description changed: - 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. + [Impact] + xserver-allow-tcp=true option no longer works with X.org 1.17. - 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. + [Test Case] + 1. Edit /etc/lightdm/lightdm.conf and set [SeatDefaults] xserver-allow-tcp=true + 2. Start LightDM + 3. Attempt to connect to the X server using TCP - 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. + Expected result: + Able to connect - Before (14.10): + Observed result: + Unable to connect - ~$ 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) - - ########################################### - i haven't /etc/lightdm/lightdm.conf - when i tried to create it and write the lines above it was worse, my system didin't start. - after a few experiment i have found something that works: - i change my /usr/share/lightdm/lightdm.conf.d/50-xserver-command.conf - - before it was: - [SeatDefaults] - # Dump core - xserver-command=X -core - - now: - [SeatDefaults] - # Dump core - xserver-command=X -core - xserver-allow-tcp=true - - and it works! + [Regression potential] + Low. X.org changed their default behaviour from listen by default to listen if "-listen tcp" is passed as a command line flag. This is just the equivalent change in LightDM. Since this is a new flag to X.org if a user was to use another X server there is a risk it would not understand that flag. However it seems unlikely since X.org is the only actively developed X server.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1449282 Title: xserver-allow-tcp=true feature doesn't work with Xorg version 1.17.0 Status in Light Display Manager: Triaged Status in lightdm package in Ubuntu: Triaged Status in lightdm source package in Vivid: Triaged Status in lightdm source package in Wily: Triaged Bug description: [Impact] xserver-allow-tcp=true option no longer works with X.org 1.17. [Test Case] 1. Edit /etc/lightdm/lightdm.conf and set [SeatDefaults] xserver-allow-tcp=true 2. Start LightDM 3. Attempt to connect to the X server using TCP Expected result: Able to connect Observed result: Unable to connect [Regression potential] Low. X.org changed their default behaviour from listen by default to listen if "-listen tcp" is passed as a command line flag. This is just the equivalent change in LightDM. Since this is a new flag to X.org if a user was to use another X server there is a risk it would not understand that flag. However it seems unlikely since X.org is the only actively developed X server. To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1449282/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp