This bug was fixed in the package lightdm-gtk-greeter - 2.0.4-1ubuntu1
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lightdm-gtk-greeter (2.0.4-1ubuntu1) bionic; urgency=medium
* New upstream release.
- Fix: black screen after booting, 100% CPU usage (LP: #1410406, #1509780)
* Merge with Debian unstable. Remaining
** Changed in: lightdm-gtk-greeter
Status: Fix Committed => Fix Released
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Title:
black screen after booting, 100% cpu usage
To manage
** Changed in: lightdm-gtk-greeter
Milestone: None => 2.0.4
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Title:
black screen after booting, 100% cpu usage
To manage notifications
I think I've nailed this one down. Fix committed below:
https://bazaar.launchpad.net/~lightdm-gtk-greeter-team/lightdm-gtk-
greeter/trunk/revision/382
** Changed in: lightdm-gtk-greeter
Milestone: 2.0.1 => None
** Changed in: lightdm-gtk-greeter
Status: Fix Released => Fix Committed
still black screen after logined in from command 'dm-tool lock'.
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Title:
black screen after booting, 100% cpu usage
To manage notifications
1. About the bug. The algorithm that detects monitors overlapping must be a
little smarter. It's solvable, just need some time to fix. You can use
active-monitor as workaround.
2. You still will have some issues with your monitors even with that fix.
Each your monitor displays the same area (see
Thank you, Andrew, for a prompt answer. I used the workaround with
active-monitor already before 2.0.1. I only hoped the new bug fix
would solve this problem. It obviously helped to many others but in some
specific configurations like mine it still fails. I will patiently wait
for a smarter
I still have the problem even after updating lightdm-gtk-greeter to version
2.0.1.
Attached is the x-0-greeter-log.
** Attachment added: x-0-greeter.log
https://bugs.launchpad.net/ubuntu/+source/lightdm-gtk-greeter/+bug/1410406/+attachment/443/+files/x-0-greeter.log
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** Changed in: lightdm-gtk-greeter
Milestone: None = 2.0.1
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Title:
black screen after booting, 100% cpu usage
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** Changed in: lightdm-gtk-greeter
Status: Confirmed = Fix Released
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Title:
black screen after booting, 100% cpu usage
To manage
** Also affects: lightdm-gtk-greeter
Importance: Undecided
Status: New
** Changed in: lightdm-gtk-greeter
Status: New = Confirmed
** Changed in: lightdm-gtk-greeter (Ubuntu)
Status: Confirmed = Triaged
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** Also affects: lightdm-gtk-greeter (Arch Linux)
Importance: Undecided
Status: New
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Title:
black screen after booting, 100% cpu usage
** Branch linked: lp:~kalgasnik/lightdm-gtk-greeter/post-2.0.0
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Title:
black screen after booting, 100% cpu usage
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So, have you tested proposed branch (without active-monitor workaround)?
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Title:
black screen after booting, 100% cpu usage
To manage
This still occurs with lightdm-gtk-greeter 2.0.0-0ubuntu1 in 15.04 and
multiple monitors per #1448214
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Title:
black screen after booting, 100%
This still occurs with lightdm-gtk-greeter 2.0.0-0ubuntu1 in 15.04 and
multiple monitors per bug #1448214
sorry for the echo...
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Title:
black
I've just upgraded from Xubuntu 14.10 to 15.04. After rebooting I was
presented with a blank screen. Switching to a terminal I could see that
lightdm-gtk-greeter was consuming 100%. After that I switched back to
the graphical environment. Then I clicked the left-mouse button at a
random position
Could you post new greeter log?
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Title:
black screen after booting, 100% cpu usage
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Yes, here is is. The greeter log with lightdm-gtk-greeter
201503290547~ubuntu15.04.1 installed and no active-monitor option.
** Attachment added: x-0-greeter.log
https://bugs.launchpad.net/ubuntu/+source/lightdm-gtk-greeter/+bug/1410406/+attachment/4383294/+files/x-0-greeter.log
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I hadn't tried that one yet. But I tried it now.
I installed lightdm-gtk-greeter 201503290547~ubuntu15.04.1 from
https://code.launchpad.net/~kalgasnik/+archive/ubuntu/lightdm-gtk-greeter-post-2.0.0
and removed the active-monitor option.
This fix solved the problem for me. After the reboot the
Thanks, just another check - looks as expected.
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Title:
black screen after booting, 100% cpu usage
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Add this option to lightdm-gtk-greeter.conf:
allow-debugging=true
and post /var/log/lightdm/x-*-greeter.log (the newest) here
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Title:
black
That didn't help at all, this package caused even more troubles and
lightdm service failed to start.
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Title:
black screen after booting, 100%
Please check version from this PPA (without active-monitor=0):
https://code.launchpad.net/~kalgasnik/+archive/ubuntu/lightdm-gtk-greeter-post-2.0.0
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I can confirm this error in Xubuntu 15.04. The error is in deed fixed by
installing updates. However the issue appears again with multiple monitors.
If you click anywhere the login window will be displayed. This issue is fixed
by inserting
active-monitor=0 on the end of file
** Changed in: lightdm-gtk-greeter (Ubuntu)
Importance: Undecided = Critical
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Title:
black screen after booting, 100% cpu usage
To manage
The bug does not happen anymore.
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Title:
black screen after booting, 100% cpu usage
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lightdm-gtk-greeter 2.0 is now in vivid, can you please test with that
version?
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Title:
black screen after booting, 100% cpu usage
To manage
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: lightdm-gtk-greeter (Ubuntu)
Status: New = Confirmed
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Another gdb trace. The process was in another library this time, it
seems.
** Attachment added: gdb-lightdm-gtk-greeter-2.log
https://bugs.launchpad.net/ubuntu/+source/lightdm-gtk-greeter/+bug/1410406/+attachment/4298542/+files/gdb-lightdm-gtk-greeter-2.log
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I have attached both the strace and the gdb log. It looks like I am
missing debug symbols for gdb to work properly. I hope one of these
files helps finding the problem.
** Attachment added: gdb log
** Attachment added: strace log
https://bugs.launchpad.net/ubuntu/+source/lightdm-gtk-greeter/+bug/1410406/+attachment/4298533/+files/strace-lightdm-gtk-greeter.log
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Can you try to figure out what it is doing? eg
strace -p `pidof lightdm-gtk-greeter`
or
gdb -p `pidof lightdm-gtk-greeter`
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Title:
black
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