Dear Maintainer,

I have the following situation: after cold-booting lightdm comes up as
expected, I authenticate and then get a blank screen (no signal to the
monitor). I then have to manually switch to VT1, stop/start lightdm,
authenticate again and am auto-switched to VT1 again. If I then switch
to VT7, I finally get to my normal X session with Enlightenment.

   * What led up to the situation?

Switching from GDM3 to lightdm (after upgrade to Jessie).

lightdm.log after getting the no-signal blank screen:
...
[+38.46s] DEBUG: Session pid=3291: User waldner authorized
[+38.46s] DEBUG: Session pid=3291: Greeter sets language de_AT.utf8
[+38.55s] DEBUG: Session pid=3291: Greeter requests session enlightenment
[+38.55s] DEBUG: Seat: Stopping greeter; display server will be re-used for user session
[+38.55s] DEBUG: Session pid=3291: Sending SIGTERM
[+38.56s] DEBUG: Session pid=3291: Greeter closed communication channel
[+38.56s] DEBUG: Session pid=3291: Exited with return value 0
[+38.56s] DEBUG: Seat: Session stopped
[+38.56s] DEBUG: Seat: Greeter stopped, running session
[+38.56s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+38.56s] DEBUG: Session pid=3318: Running command /etc/X11/Xsession /usr/bin/enlightenment_start
[+38.56s] DEBUG: Creating shared data directory /var/lib/lightdm/data/waldner
[+38.56s] DEBUG: Session pid=3318: Logging to .xsession-errors
[+38.59s] DEBUG: Activating VT 7
[+38.59s] DEBUG: Activating login1 session 1

lightdm.log after re-starting lightdm and authenticating:
...
[+8.67s] DEBUG: Session pid=3794: User waldner authorized
[+8.67s] DEBUG: Session pid=3794: Greeter sets language de_AT.utf8
[+8.80s] DEBUG: Session pid=3794: Greeter requests session enlightenment
[+8.80s] DEBUG: Seat: Stopping greeter; display server will be re-used for user session
[+8.80s] DEBUG: Session pid=3794: Sending SIGTERM
[+8.81s] DEBUG: Session pid=3794: Greeter closed communication channel
[+8.81s] DEBUG: Session pid=3794: Exited with return value 0
[+8.81s] DEBUG: Seat: Session stopped
[+8.81s] DEBUG: Seat: Greeter stopped, running session
[+8.81s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+8.81s] DEBUG: Session pid=3917: Running command /etc/X11/Xsession /usr/bin/enlightenment_start
[+8.81s] DEBUG: Creating shared data directory /var/lib/lightdm/data/waldner
[+8.81s] DEBUG: Session pid=3917: Logging to .xsession-errors
[+8.82s] DEBUG: Activating VT 7
[+8.82s] DEBUG: Activating login1 session 5

Since this didn't happen with GDM3, I don't think (ICBW, of course) this is
a problem with Enlightenment. I also get the same behaviour on my box at
work, same setup, so I can reproduce this.

Any hints very much appreciated - this is somewhat annoying.

Kind regards,
robert

Can you check the .xsession-errors in both cases? Because it seems that
the session is correctly started by the greeter, so something else
might be happening later.

Regards,

Well, there are definitely RANDR stuff in the .old log which look weird,
but I don't know if they're a cause or a consequence.

On Thu, 21 May 2015 12:21:22 +0200, Yves-Alexis Perez writes:

I don't see anything obvious, so I've attached .xsession-errors.old from
 the first session (directly after reboot) and .xsession-errors from
 after restarting lightdm.

Xorg.0.log(.old) also look fine to me.

Kind regards,
robert

On Thu, 21 May 2015 18:04:22 +0200, Yves-Alexis Perez writes:

Hmm, you mean the "E_RANDR" lines, which I guess are from
 Enlightenment? Would E even know if it's the first try for a session
 after reboot or a subsequent one?

For comparison, I've attached .xsession-errors/.old from my box at work
 - same general setup (lightdm, Enlightenment, upgraded from wheezy to
 jessie (so no full systemd env.), same problem, but w/o proprietary
 NVIDIA stuff).

Kind regards,
robert

I just noticed something else: when I switch to VT1 directly from the
 initial lightdm login screen, and stop/start lightdm, X w/
 Enlightenment comes up.

The whole sequence then would be:
* boot, watch boot messages scroll by
* lightdm login screen appears
* I switch to VT1 manually, log in as root
* /etc/init.d/lightdm stop
* /etc/init.d/lightdm start
* screen switches to non-text-mode for a short (sub-second) period
* and I'm back at VT1
* manually switch to VT7, see lightdm login screen
* enter credentials, press enter
* blam, back at VT1
* manually switch to VT7, and now I'm in the Enlightenment session

Kind regards,
robert