I can confirm as well that lightdm v1.2.3-0ubuntu2.7 has indeed fixed
this issue for me. Thank you for the quick turnaround!
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Looks like that did it:
root 18958 0.0 0.0 270668 3496 ?Ssl 23:26 0:00 lightdm
root 18964 11.0 1.0 246424 133256 tty7Ss+ 23:26 0:08 /usr/bin/X :0
-auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
Good work!
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Unfortunately, the 2nd patch still produces the high cpu usage on one
core:
root 2054 93.8 0.0 270668 3488 ?Rsl 22:35 1:40 lightdm
root 2091 10.4 1.3 283756 170820 tty7Ss+ 22:35 0:11 /usr/bin/X :0
-auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
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You
First patch didn't fix the issue:
root 11395 93.0 0.0 270668 3488 ?Rsl 22:26 1:00 lightdm
root 11401 12.3 1.2 263008 149876 tty7Ss+ 22:26 0:08 /usr/bin/X :0
-auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
I will try the 2nd one now.
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To add to comment #17, just now I replaced my empty 09_close_pipes.patch
file with the actual patch, then rebuilt, installed and restarted the
lightdm process. Upon logging in, it's back to using 100% of a cpu core
again. So when the 09 patch is removed, no high cpu usage. When the
patch is put
I may not be doing this correctly, but I ran the following to attempt to
debug the running lightdm process using the package from the precise
proposed ppa again. The command I ran is:
sudo gdb lightdm 24513
Of course, 24513 was the running lightdm process. Interesting thing
here is, once gd
Hi Robert,
While I am a developer, I don't have much experience developing in Linux
or using Bazaar (bzr). With that being said, I wasn't exactly sure how
to disable a patch per say, so what I did was backed up
09_close_pipes.patch by moving it to my desktop, then issuing "touch
09_close_pipes.pa
Also, an addendum to the previous instructions, the Ubuntu repo that has
version 1.2.3-0ubuntu2.5 of lightdm is the precise-updates repo. To add
that repository, do the following:
>From terminal:
sudo gedit /etc/apt/sources.list
Add the following lines to the end of your file:
## U
FYI, in case there are some lesser experienced users that have this
issue and are looking for a temporary solution for the time being, below
are the instructions to revert to the previous release of lightdm until
this gets resolved.
You can do this with the following command in a terminal ():
If it helps, here's the x-0-greeter.log file while running lightdm
v1.2.3-0ubuntu2.5 (when the 100% usage doesn't occur).
** Attachment added: "x-0-greeter1.log"
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431654/+attachment/4343757/+files/x-0-greeter1.log
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Here's the x-0-greeter.log file generated from lightdm
v1.2.3-0ubuntu2.6.
** Attachment added: "x-0-greeter.log"
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431654/+attachment/4343749/+files/x-0-greeter.log
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I apologize, the version of the kernel that was running when log file
was generated was 3.2.0-79-generic (not 3.2.0-19-generic). Sorry for
the typo.
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https://b
Here is the lightdm log file pulled from /var/log/lightdm/lightdm.log.
At 98.76s, I logged out of my session, but didn't get a log-in screen
again (black screen on both monitors).
At this point I killed the process (28882) so that I could downgrade
lightdm again (from ctrl+alt+F1) and log back in.
Public bug reported:
Since updating lightdm today, one core of my CPU is always maxed out at
100%. I rolled back to version 1.2.3-0ubuntu2.5 and the issue stopped.
I tried this with 2 different kernels: 3.2.0-77-generic and
3.2.0-79-generic and and version 1.2.3-0ubuntu2.6 of lightdm still
caused
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