For me it seems like it's a lot more likely to happen when switching
from a user with Terminal open. Particularly if I'm using sudo.
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** Package changed: lightdm (Ubuntu) = fglrx-installer (Ubuntu)
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https://bugs.launchpad.net/bugs/886579
Title:
user switching from screen lock freezes system
Status in
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: lightdm (Ubuntu)
Status: New = Confirmed
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Same problem with fglrx, but works fine with opensource radeon driver.
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https://bugs.launchpad.net/bugs/886579
Title:
user switching from screen lock freezes system
Some more testing:
No (this) problem with opensource radeon driver.
Problem exists also with gdm (finally got it working when removed automatic
login, otherwise hang in checking battery -in desktop-).
So it's not lightdm (only) and seems to be related to fglrx. (Also
tried with latest version
OK, it's the same with xcreensaver. Only with opensource driver I can
switch to locked session from dm. With fglrx the system freezes.
It might be that dm is trying to create a new session even when there is
existing one but locked and that's why it hangs?
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https://bugs.launchpad.net/bugs/886579
Title:
user switching from screen lock freezes system
Status in “lightdm” package in Ubuntu:
New
Bug description:
There are
Check with bug 886496, filed by me. Does it have anything to do with it? It
looks like possibly related.
Take out the 'Energy Saving Part' from your system.
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