Log-in screen endless loop after upgrade[solved]

[pottzie]

Just did an upgrade that now does an endless loop at the log-in screen. There's now a panel at the top of the screen, not sure if it was there before or not. When I choose LXDE from the icon in the upper right side of the panel, then enter my user name and password, it just cycles back to the log-in. This is on an old Pentium 3 laptop.

Just did the same upgrade to a newer, dual core laptop, upgrade worked without a hitch, so maybe a hardware issue. I can get to a terminal by using ctrl/f2.

[rhowaldt]

for clarity, which BBQ version is this?

[wuxmedia]

i'm guessing trollinger?
once you get into tty do you have a connection?

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ins pastebinit

might be handy.
can you do

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startx

from tty?
sounds like lightdms gone crazy

[wuxmedia]

maybe it's this>
http://crunchbang.org/forums/viewtopic.php?id=17245
obviously go straight to a tty (ignore the first bit about slim) do the update alternatives bit

[machinebacon]

Just did an upgrade that now does an endless loop at the log-in screen. There's now a panel at the top of the screen, not sure if it was there before or not. When I choose LXDE from the icon in the upper right side of the panel, then enter my user name and password, it just cycles back to the log-in. This is on an old Pentium 3 laptop.

Just did the same upgrade to a newer, dual core laptop, upgrade worked without a hitch, so maybe a hardware issue. I can get to a terminal by using ctrl/f2.

Change to TTY2 with Ctrl-F2
log in as root or normal user and change to root with sudo or su -
nano /etc/lightdm/lightdm.conf
scroll down to the line "#autologin-user=" and change it to "autologin-user=YOUR_USERNAME" where YOUR_USERNAME is your username. Save and exit, then
service lightdm restart

Edit: LightDM is my new favourite scapegoat: http://bugs.debian.org/cgi-bin/pkgrepor ... t=unstable
Another example, somewhat related: a few weeks ago, there was a bug that the 'default' session didn't start. I circumvented it by editing the /usr/share/xsessions/lightdm-xsession.desktop file and changing Exec=default to Exec=startlxde -- the default seat is now stored in ~/.dmrc. My recommendation for tinkerers is: if not really needed, simply purge lightdm and use no DM at all, instead kick into x with startx/xinit.

[pottzie]

Editing /etc/lightdm/lightdm.conf didn't work, but editing /usr/share/xsessions/lightdm-xsession.desktop did. Don't know if just changing lightdm-xsession alone would have worked, or not. Either way, I'm good.

As I said, this borked on one (considerably older) computer, upgrade went without a hitch on newer model. I still have a (quirky) PC to try it on yet. Have to wait and see how that goes.

Either way, problem solved. Thanks.

[pidsley]

lightdm is hosed on my machines. two installs today, attempted upgrades and broke lightdm twice. purged and gone.

[machinebacon]

^ I'll add this to the upgrade warnings. My guess is that the libgtk-3-* upgrade has borked something with lightdm (which was upgraded shortly before)

[ivanovnegro]

If I remember I had an update in LightDM and even took the new conf from the dev when asked, worked, though that was a bit longer ago and has not to be related.

[machinebacon]

Correct, Ivan. IIRC the conf had just one little diff each (don't remember what it was, maybe the font-antialiasing entry in lightdm-gtk-greeter), but there was also some discussion about .dmrc not respecting the last chosen seat. I just suppose that lightdm-gtk-greeter is borked, and not LightDM itself. Do you use a greeter?

[ivanovnegro]

^ Yes, the Gtk greeter and it obviously changed.