gnome flashback sessions black screen

[Vanishing]

Is it just me? I have tested this on an old install(partially broken due to dbus and systemd issues), a semi new install(installed yesterday) and a brand new install, logging into flashback sessions hangs at a black screen.
This behavior started about this morning.

[Cavsfan]

This happens to me after today's update. I thought it was Grub2 as it was updated.

cavsfan@cavsfan-MS-7529:~$ grub-install -v
grub-install (GRUB) 2.00-18ubuntu1

But, I can confirm it is not caused by that that I can see. I am in Unity now which is unaffected.

I cannot login to flashback though all I have is a black screen too. I can bring up a terminal with ALT+TAB+t but that is about all.

[mc4man]

I believe this is from the upgrade of upstart to 1.9.1-0ubuntu5
(not the only issue with upstart but certainly significant for flashback users

[mc4man]

Pretty easy to fix --

sudo nano /etc/upstart-xsessions

change
gnome-fallback
gnome-fallback-compiz
to
gnome-flashback
gnome-flashback-compiz

Or maybe install the dummy fallback packages to match this dummy upgrade

https://bugs.launchpad.net/ubuntu/+s...t/+bug/1217991

[muktupavels]

Pretty easy to fix --

sudo nano /etc/upstart-xsessions

change
gnome-fallback
gnome-fallback-compiz
to
gnome-flashback
gnome-flashback-compiz

Or maybe install the dummy fallback packages to match this dummy upgrade

https://bugs.launchpad.net/ubuntu/+s...t/+bug/1217991

Thanks!

[ventrical]

I installed ..

sudo apt-get install gnome-session-fallback

eary thismorning while doing some overclocking on one of my systems. I was not able to get Unity to work in full screen mode so I used gnome fallback. It worked just fine with (no effects). It worked for a while @ 4.002GHz in gnome-flashback (classic) but eventually became unstable during an upgrade. ( the upgrade process [unpacking/installing] caused a heavier than normal load on the cpu).

[jamesward]

I'm having the same problem as of 2 days ago. The suggested fixes above didn't work for me. But logging into tty1 and running the following got things up and running:

sudo service lightdm restart
gnome-session-flashback

Not sure why that works though.

[mc4man]

They'll get this fixed up sooner than later
As mentioned in report the maintainer says not to change the names in /etc/upstart-xsessions as they should match what's in /usr/share/xsessions
(though if running a dev one can do as they please to workaround released issues..

Installing gnome-session-fallback would have no effect as it doesn't install any .session files anymore like it did in 13.04

Another 'workaround' in lieu of editing that upstart file would be to create a symlink(s), ex. for flashback (no effects

sudo ln -s /usr/share/gnome-session/sessions/gnome-flashback.session /usr/share/gnome-session/sessions/gnome-fallback.session

(I do find the tendency of upgrades being approved/released without the reviewer/maintainer/uploader actually using them first to see how they work out interesting, I guess they sometimes don't have the time

[Cavsfan]

I believe my problem is a bit more serious. Today I cannot get into either flashback or unity.
Unity freezes and ALT+TAB+F1 to get to CLI mode and attempt the updates there yields some odd errors about dpkg and will not update.
I believe it is time for a fresh install. But, I don't have time for that now.

In Precise at present and glad I have more than one install so I can copy stuff from my Saucy partition to my USB drive.
Not sure why my situation is different but, I think it is borked.

Oh, and I seen another option to login something like NVIDIA Persistent *something*. Don't know where that came from or why.

[Vanishing]

Pretty easy to fix --

sudo nano /etc/upstart-xsessions

change
gnome-fallback
gnome-fallback-compiz
to
gnome-flashback
gnome-flashback-compiz

Or maybe install the dummy fallback packages to match this dummy upgrade

https://bugs.launchpad.net/ubuntu/+s...t/+bug/1217991

Thank you for this..
I was playing with gnome3 ppa and gnome3-staging ppa(oh noes)...that.did.not.go.well.
After ppa-purge I was left blackscreen, and thats when I thought my whole year of tweaking on this install is done for..
I started fresh, and encountered this problem(After I installed, I tried to chroot & upgrade, so the old install got this problem as well).
After 2 days of endless log reading, file diffing, I magically fixed my old friend

Yay for Thursday!