Happened to me 2 times on a fresh install (12.04) upgraded to to (12.04.1).
ctrl+alt+F1 and back to UI (ctrl+alt+F7) doesn't help.
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FWIW, I have noticed this behavior as well. Confronted with a black
screen I ctrl-alt-f1 to a console and then back (actually, I tend to
walk back along f2, f3... but that isn't necessary, I'm just weird).
This brings back the screen so I think there is just an screen update
missing somewhere.
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I have experienced what this bug report describes since installing 12.04 with
default settings.
when I close the lid, and re-open the lid, I find I've been dropped from the
network, and reconnects.
I changed Power Setings to:
suspend when inactive for: don't suspend // don't suspend
when
I took the time to write the above blurb because was tired of having the
graphics system unresponsive/unavailable after opening the lid.
However, as part of writing the above, I unchecked rechecked all
related settings in Power Options, and now when I test again for
multiple seconds at a time,
Sorry for the bad tidings...
Made use of the new-to-me feature: Lid was closed about 10 minutes, opened the
lid, moved the mouse, and the mouse was immediately visible - the screen never
returned from 'black.'
Logging into a new tty shell showed nothing notable (diffing a before after
ps
I suspect this may be a duplicate of
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/966744
But perhaps it is just related
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Brand new system76 laptop here running 12.04 64bit and seeing this exact
same behavior.
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https://bugs.launchpad.net/bugs/1001908
Title:
Login screen
This bug affects my Asus laptop. Close lid, hard freeze except for
mouse.
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https://bugs.launchpad.net/bugs/1001908
Title:
Login screen doesn't always
Update: After disabling all locking in Brightness and Lock control
panel (switch lock to off, and unselecting the Require my password when
waking from suspend), the problem still persists. Though less
frequently.
So, far I can go into another terminal Ctrl+Alt+F1 and run:
ps ax | grep lightdm
I found the settings have been moved to dconf (Install dconf-tools from
the repo and you can run dconf-editor).
I have been playing with the options in org.gnome.desktop.lockdown,
options in org.gnome.desktop.screensaver, and org.gnome.settings-
daemon.plugins.power.
Particulary
** Package changed: ubuntu = gnome-power-manager (Ubuntu)
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https://bugs.launchpad.net/bugs/1001908
Title:
Login screen doesn't always appear
To manage
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