*** This bug is a duplicate of bug 1516216 ***
https://bugs.launchpad.net/bugs/1516216
>From kern.log in comment #6
Aug 10 13:24:50 xxx1 kernel: [ 14.150733] BUG: unable to handle kernel NULL
pointer dereference at (null)
Aug 10 13:24:50 xxx1 kernel: [ 14.150737] IP: []
*** This bug is a duplicate of bug 1516216 ***
https://bugs.launchpad.net/bugs/1516216
Are you sure it's a duplicate?
This one happened randomly, the other one is described as 100% systematic.
This one results in the "Ubuntu..." screen being displayed forever, the other
one results in a
/var/log/Xorg.0.log.old is empty
/var/log/gpu-manager.log doesn't exist
** Changed in: nvidia-graphics-drivers-340 (Ubuntu)
Status: Incomplete = Confirmed
** Also affects: xorg (Ubuntu)
Importance: Undecided
Status: New
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** Attachment added: Xorg.0.log
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1483388/+attachment/4445146/+files/Xorg.0.log
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When this happens, any of these may happen:
A) I force-power-off the computer, try to boot again in the exact same
conditions (not plugging/unplugging AC power nor mouse nor external
screen), and at the next attempt most of the times it boots normally
B) I do the same as A, but retry for
** Attachment added: kern.log
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1483388/+attachment/4445147/+files/kern.log
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I can't tell for sure, but the files you asked me to attach don't seem
to contain the same error messages that I saw in the black screen during
the boot.
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please reproduce the problem and attach the following files:
/var/log/Xorg.0.log
/var/log/Xorg.0.log.old
/var/log/kern.log
/var/log/gpu-manager.log
** Changed in: nvidia-graphics-drivers-340 (Ubuntu)
Status: Confirmed = Incomplete
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** Summary changed:
- Boot gets stuck at purple Ubuntu screen forever if running from battery
+ System randomly won't complete boot
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https://bugs.launchpad.net/bugs/1483388
Title:
** Attachment added: IMG_20150813_210905185.jpg
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1483388/+attachment/371/+files/IMG_20150813_210905185.jpg
** Description changed:
- I am not sure at all what package this bug is; I report it against Unity
- because I get to see the
Inability to boot after the update of NVidia drivers to 340 has been
confirmed by user Anna at https://bugs.launchpad.net/ubuntu/+source
/nvidia-graphics-drivers-340-updates/+bug/1431753/comments/104
** Package changed: unity (Ubuntu) = nvidia-graphics-drivers-340
(Ubuntu)
** Changed in:
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