[Bug 1254319] Re: Black screen instead of login screen; input works
I've made some progress. By setting up an xorg.conf with a modeline for the external display, I got graphics on the (lightdm) login screen to show up on it. But the login input fields weren't on this screen (it was just the background), so this was further evidence that there's monitor misdetection going on (greeter/lightdm happily thinks it's displaying the input fields on the broken internal LCD). So I further tweaked xorg.conf to force X to ignore the internal display, and now I've got a working login screen back on the external display. I'll attach my xorg.conf below; it is a satisfactory workaround. ** Attachment added: "Internal display disabling, external display enabling xorg.conf" https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+attachment/3924693/+files/xorg.conf ** Summary changed: - Black screen instead of login screen; input works + Login screen goes to broken internal display, working external display shows black (unless xorg.conf set up) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1254319 Title: Login screen goes to broken internal display, working external display shows black (unless xorg.conf set up) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1254319] Re: Black screen instead of login screen; input works
Further details: mouse cursor is briefly visible just prior to the black (login) screen. GDM does show up on the display, but in too big a resolution, so that I only get some of the grey background visible on screen and still have to log in blindly. It occurred to me that with lightdm, the symptom appears as I would expect if it failed to do monitor detection properly and thinks it's displaying the login screen on the (broken) internal display only. Well, apart from the funky "login screen desktop background" phenomenon (which could be a separate issue though). (Just to be clear: this same combination of broken internal + working external display did display the login screen correctly on the external one in Precise.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1254319 Title: Black screen instead of login screen; input works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1254319] Re: Black screen instead of login screen; input works
** Attachment added: "lightdm.log" https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+attachment/3915588/+files/lightdm.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1254319 Title: Black screen instead of login screen; input works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1254319] Re: Black screen instead of login screen; input works
** Attachment added: "Xorg.0.log" https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+attachment/3915591/+files/Xorg.0.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1254319 Title: Black screen instead of login screen; input works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1254319] Re: Black screen instead of login screen; input works
** Attachment added: "x-0-greeter.log" https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+attachment/3915589/+files/x-0-greeter.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1254319 Title: Black screen instead of login screen; input works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1254319] Re: Black screen instead of login screen; input works
** Attachment added: "x-0.log" https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+attachment/3915590/+files/x-0.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1254319 Title: Black screen instead of login screen; input works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1254319/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
