After this recent increase on the activity associated with this bug I decided to take some time and investigate further the behavior of the current lightdm.
After many try-and-error on changing the options on lightdm.conf I got an almost perfect setup for my configuration. My configuration is 1) A core-i5 2400 system. First seat uses Intel's integrated graphics. Second seat uses a AMD based card with radeon (open source) graphics. 2) I am using a single xorg.conf file with multiple layouts and hardcoded input devices (I don't believe that this is really important, but it is better to documented it just in case). At least with this configuration lightdm works, with a small catch - see below, if I delete the -sharevts option when calling X for the first seat. Note that lightdm work accept -sharevts on both seats in version 1.0.6 (Oneiric), but it stopped working with the version shipped with Precise. The only caveat right now is that the first seat (the one that does not have the -sharevts option) does change to automatically to its virtual terminal, presenting just a black screen with a blinking cursor to the user. To go to the graphicallogin just press Alt-F7 (my first graphical login screen is in VT7). If I add -sharevts back to the first seat the graphical login appears automatically but the password field can not be used (the behavior described in this bug). I could not find another option to add in place of -sharevts to make the graphical login screen appear automatically. If others can confirm this behavior I believe that the bug should be closed. Maybe we should open another bug if we can not find a way to make the first login screen automatically, but this is a different problem IMHO. I attach next my current lightdm.conf (it is very simple right now). ** Attachment added: "Working lightm.conf (but with seat0 initially blank)" https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/976124/+attachment/3434389/+files/lightdm.conf -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/976124 Title: lightdm multiseat: no login possible Status in “lightdm” package in Ubuntu: Confirmed Status in “lightdm” source package in Precise: Confirmed Bug description: I am testing a multiseat setup with precise: One XServer is running on intel graphics card, a second one is running on a DisplayLink (usb video) device. The two greeters are displayed, but without password fields shown so it is not possible to login. If auto-login is enabled in lightdm.conf multiseat works fine. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: lightdm 1.2.0-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14 Uname: Linux 3.2.0-22-generic x86_64 ApportVersion: 2.0-0ubuntu4 Architecture: amd64 Date: Sat Apr 7 20:35:52 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328) ProcEnviron: PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/976124/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
