Arch Linux

dmcbeing

Member

Registered: 2014-07-31

Posts: 9

Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

Hello arch users,

I have been using arch for more than two years,and apart from a few hiccups it has been great.

This is one such hiccup...

My problem:

I did a pacman -Suy yesterday,tend to do this often only 5-10 packages were upgraded,one of them being xorg.

Today i opened my pc, and logged in as usual(i am using slim).
When i started opening my usual applications (firefox,thunderbird) i noticed the following:

When ever i clicked a button(eg. close a tab) CPU utilization would go to 100% for the xorg processes as-well as the wm process (openbox in my case).
After a while(5s) CPU utilization drops to normal,but the event is usually ignored...

I have an strace,that shows the system calls when this happens but i don't think it is very useful,i will post it if it helps.

Has anyone faces the same issue,any clues?

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

Anything interesting in the logs?
What packages did you upgrade?

dmcbeing

Member

Registered: 2014-07-31

Posts: 9

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

Xorg log contains no warnings and only a single error:
(EE) systemd-logind: failed to get session: PID 424 does not belong to any known session
I dont know if this is related though....

I don't remember the packages,but i certainly updated Xorg and Xorg drivers(intel in particular).

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

Look into pacman's log.

Edit: What about systemd's journal? You can try rebooting too.

Last edited by karol (2014-07-31 21:38:34)

dmcbeing

Member

Registered: 2014-07-31

Posts: 9

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

This is the pacman log:

[2014-07-31 23:59] [PACMAN] Running 'pacman -Suy'
[2014-07-31 23:59] [PACMAN] synchronizing package lists
[2014-07-31 23:59] [PACMAN] starting full system upgrade
[2014-08-01 00:00] [PACMAN] removed lzo2 (2.08-1)
[2014-08-01 00:00] [PACMAN] upgraded cpupower (3.14-3 -> 3.15-1)
[2014-08-01 00:00] [PACMAN] upgraded ffmpeg (1:2.3-1 -> 1:2.3.1-1)
[2014-08-01 00:00] [PACMAN] upgraded gettext (0.19.1-1 -> 0.19.2-1)
[2014-08-01 00:00] [PACMAN] upgraded kdelibs (4.13.3-1 -> 4.13.3-2)
[2014-08-01 00:00] [PACMAN] upgraded tdb (1.2.12-1 -> 1.3.0-1)
[2014-08-01 00:00] [PACMAN] upgraded ldb (1.1.16-1 -> 1.1.17-1)
[2014-08-01 00:00] [PACMAN] installed lzo (2.08-3)
[2014-08-01 00:00] [PACMAN] upgraded libarchive (3.1.2-6 -> 3.1.2-8)
[2014-08-01 00:00] [PACMAN] upgraded libcups (1.7.4-1 -> 1.7.5-1)
[2014-08-01 00:00] [PACMAN] upgraded libwbclient (4.1.9-1 -> 4.1.10-2)
[2014-08-01 00:00] [PACMAN] upgraded mkinitcpio (17-1 -> 18-1)
[2014-08-01 00:00] [PACMAN] upgraded perf (3.14-3 -> 3.15-1)
[2014-08-01 00:00] [PACMAN] upgraded smbclient (4.1.9-1 -> 4.1.10-2)
[2014-08-01 00:00] [PACMAN] upgraded tar (1.27.1-1 -> 1.28-1)
[2014-08-01 00:00] [PACMAN] upgraded xf86-video-intel (2.99.914-1 -> 2.99.914-2)
[2014-08-01 00:00] [PACMAN] upgraded xorg-server-common (1.16.0-5 -> 1.16.0-6)
[2014-08-01 00:00] [PACMAN] upgraded xorg-server (1.16.0-5 -> 1.16.0-6)

Journalctl only shows a few dhcpd/ipv6 errors.

earsplit

Member

Registered: 2012-03-31

Posts: 187

Website

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

I am also noticing very high CPU usage. X didn't ever show up at the top of powertop, and now it's bumped way up to the top of the list

---

((( configs :: website )))

dmcbeing

Member

Registered: 2014-07-31

Posts: 9

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

I did a total re installation of the system(formated /,but kept all data in home directories),
the problem persists .

dmcbeing

Member

Registered: 2014-07-31

Posts: 9

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

Erasplit can you descibe a bit other symptoms, in case it helps a more experienced user?

Another example:
I run a single instance of gnime-calculator.
If i just try to move the window the CPU spikes and the program becomes unresponsive for ~10 seconds.

dmcbeing

Member

Registered: 2014-07-31

Posts: 9

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

I am also noticing very high CPU usage. X didn't ever show up at the top of powertop, and now it's bumped way up to the top of the list

I just though that down grading Xorg could solve this issue.
I am trying to find how to do that(dont have the pacman cache anymore ) but perhaps you could do that?

If you downgrade before i do,let me know of the outcome ;P.

dmcbeing

Member

Registered: 2014-07-31

Posts: 9

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

Having downgraded xorg-server and some dependencies did not fix my issues......

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

dmcbeing, if you want to downgrade, try https://wiki.archlinux.org/index.php/Catalyst#xorg115 to make sure you downgraded all the packages.

Last edited by karol (2014-08-03 22:49:47)

dmcbeing

Member

Registered: 2014-07-31

Posts: 9

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

dmcbeing, if you want to downgrade, try https://wiki.archlinux.org/index.php/Catalyst#xorg115 to make sure you downgraded all the packages.

Thanks for your suggestion,i added this repository but it wont sync due to this:

error: database `xorg115` is not valid (invalid or corrupted database (PGP signature))

I have added the developers key, and tried all mirrors but still no go....

I give up,i will wait for an future update (that hopefully will) fix my issues.

Thanks

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

Read https://wiki.archlinux.org/index.php/Ca … positories

dimaqq

Member

Registered: 2012-02-22

Posts: 3

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

Did anyone figure it out?
I noticed same issue, xorg+wm(e0.19.2) vmstat user cpu 10%, system cpu 40% (as in it's ratio from all 4 cores).

I'm using intel igd.

dmcbeing

Member

Registered: 2014-07-31

Posts: 9

Re: Xorg server high cpu utlilization and erratic behaviour (xorg 1.16)

Well some time has passed so i dont remember all details, but what i did was removed allot of configuration files (~/.config) and it somehow worked(After nummerous reinstallations that is..).
In my case some application caused these issues.I would recommend to rename your ~/.config just to see if it fixes the problem for you.
If it does start reverting application configurations until you get the issue again.The you have (most likely) found the culprit and you must delete the configuration and reinstall the application.

I hope this helps your problem.