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#1 2019-02-14 07:54:00

unni
Member
Registered: 2018-01-17
Posts: 23

[SOLVED] xfdesktop-settings freezes with high CPU usage

I'm experiencing the exact same issue as described in this bug -> https://bugzilla.xfce.org/show_bug.cgi?id=14109

When opening xfdesktop-settings from xfce4-settings-manager it freezes using 25% of CPU time until manually killed.

If I open xfdesktop-settings directly (without any options) it behaves normally. (note that opening from xfce-settings-manager it will open xfdesktop-settings with the --socket-id option).

I'm running Xfce4 on an up-to-date Arch Linux installation and the xfdesktop package version is 4.12.4

In that bug the proposed workaround was to remove the xf86-video-intel package, but I would appreciate any suggestions that would allow me to keep the xf86-video-intel package installed.

Thank you.

Last edited by unni (2019-02-15 12:44:37)

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#2 2019-02-14 22:51:55

ToZ
Administrator
From: Canada
Registered: 2011-06-02
Posts: 11,000

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

Is there anything in your ~/.xsession-errors file when this happens?

Also, try running xfdesktop in debug mode:

xfdesktop -Q && xfdesktop --enable-debug

It would be helpful to see if there are error or debug messages displayed.


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#3 2019-02-15 03:30:39

unni
Member
Registered: 2018-01-17
Posts: 23

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

ToZ wrote:

It would be helpful to see if there are error or debug messages displayed.

I've checked the ~/.xsession-errors and it doesn't produce any errors.

xfdesktop in debug mode also doesn't produce any output on this issue.

It must have something to do with the --socket-id option.

In summary:

xfdesktop-settings --socket-id=xxxxxxxx

freezes using 25% CPU



xfdesktop-settings

works normally

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#4 2019-02-15 05:27:04

ToZ
Administrator
From: Canada
Registered: 2011-06-02
Posts: 11,000

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

Socket-id is something that xfsettingsd creates when managing pluggable dialogs (through the settings manager).

Do you have xfsettingsd running? What does the following return:

ps -ef | grep -i xfsettingsd

Can you also try restarting xfsettingsd:

xfsettingsd --replace

...then trying the settings manager again.


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#5 2019-02-15 10:50:20

unni
Member
Registered: 2018-01-17
Posts: 23

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

xfsettingsd is running.



'ps -ef | grep -i xfsettingsd' returns

<user-name>   759     1  0 10:12 ?        00:00:00 xfsettingsd
<user-name>  1349  1281  0 10:17 pts/0    00:00:00 grep --color=auto -i xfsettingsd


Behaviour using 'xfsettingsd --replace' is unchanged.




P.S.: Thank you for your suggestions, ToZ. I've also tried everything after removing the 'xf86-video-intel' driver but the results are exactly the same.

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#6 2019-02-15 11:30:12

ToZ
Administrator
From: Canada
Registered: 2011-06-02
Posts: 11,000

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

Is it just the Desktop settings that hangs when you go through the Settings Manager or do some of the other ones hang as well? Do you have a lot of images in the directory that is being used for your wallpaper? And finally, can you post back the results of:

xfconf-query -c xfce4-desktop -lv | grep last-image

Edit: And if possible, can you create a second account on the computer and check to see if it suffers from the same issue?

Last edited by ToZ (2019-02-15 11:30:54)


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#7 2019-02-15 12:44:06

unni
Member
Registered: 2018-01-17
Posts: 23

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

It is solved!

The directory had 32 images in it. All JPEG. I tried moving a few and it now works normally.

Apparently it doesn't like having too many images?

Anyway, thank you very much for your suggestions.


EDIT: Marking thread as solved.

Last edited by unni (2019-02-15 12:45:05)

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#8 2019-02-16 00:11:32

ToZ
Administrator
From: Canada
Registered: 2011-06-02
Posts: 11,000

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

Perhaps one of those images was corrupted and hanging up the thumb-nailing process.


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#9 2019-02-16 02:37:58

Skaperen
Member
From: right by Jesus, our Saviour
Registered: 2013-06-15
Posts: 819

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

are all 32 images still in that directory with some moved to new names, or did you move any out of the directory, reducing the number?  maybe someone hard coded the size of that array.  if that is the case and i was fixing it, i'd just increase it to 4096 (raise your hand if this exceeds your RAM) if i didn't feel like re-coding it to be the right way.

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#10 2019-02-16 09:05:29

unni
Member
Registered: 2018-01-17
Posts: 23

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

I just moved some of the files to another directory.
The image files are all normal and launching xfdesktop-settings (without the --socket-id option) worked normally. The problem was only produced by launching xfdesktop-settings from xfdesktop-settings-manager.
The size of all files in that specific directory was ~14MB. After moving 2 files away the new size is ~10MB.

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#11 2019-02-16 18:53:26

Skaperen
Member
From: right by Jesus, our Saviour
Registered: 2013-06-15
Posts: 819

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

can you verify that all files are OK by swapping these 2 in an 2 others out and see if all work fine with these 30 files.  if that works, move 1 file in and test to see if 31 files works.  if so,then move the last file back in and test with all 32.  i just want to know if it breaks at 31 or 32.  if it were happening to me, i'd be juggling files around to see where the breakage might be in terms of total file size.  one of these days i'll get into the source code and see how this stuff works ... and fails.

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#12 2019-02-18 20:48:33

unni
Member
Registered: 2018-01-17
Posts: 23

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

OK. I've moved the files back to the same directory but now it works with no problems...

Does xfdesktop-settings create some sort of thumbnails cache that was broken, and got fixed when it was forced to update the thumbnails after modifying files in the directory?

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#13 2019-02-18 23:06:12

ToZ
Administrator
From: Canada
Registered: 2011-06-02
Posts: 11,000

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

unni wrote:

Does xfdesktop-settings create some sort of thumbnails cache that was broken, and got fixed when it was forced to update the thumbnails after modifying files in the directory?

Yes. Using tumbler. Perhaps it was a faulty thumbnail image as you suggest.


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#14 2019-12-29 19:43:24

mkkot
Member
Registered: 2017-11-07
Posts: 4

Re: [SOLVED] xfdesktop-settings freezes with high CPU usage

Similar problem: xfdesktop randomly uses 30% of cpu for no reason. I fixed the problem with removing all files from ~/.local/share/backgrounds/. I don't think they were broken, tumbler was creating their thumbnails properly in Thunar. And I actually wanted to have them there. I added now only 3 images and will be monitoring the situation.

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