With our particular setup of school labs. 2-3 out of 30 stations would
always fail - the display manager would not start.
On the kernel i turned removed: splash & quiet and noticed that the
events proceeding starting lightdm were quite a bit shorter for the
failed machines.
When I turned on more debugging features, all the machines boot-up fine with no
errors! So my hack/solution:
* kernel boot options remove: splash quiet
* kernel boot options add: verbose init=/sbin/init --verbose
* /etc/default/rcS
VERBOSE=yes
My guess is that dumping the verbose text out to the screen creates just
enough delay to fix the race condition.
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https://bugs.launchpad.net/bugs/969489
Title:
lightdm tries (and fails) to start too early?
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