mate-appearance-properties loads a CPU core to 100%

[flexiondotorg]

Hi,

When I start I start System -> Preferences -> Appearance I see that many of the themes don't have thumbnails and show a question mark icon instead.

As a result, mate-appearance-properties tries to generate the required thumbnails. This activity loads a single CPU core to 100% and never completes. Upon closing mate-appearance-properties the window is closed but the process continues to run, indefinitely in the background, occupying 100% of a CPU.

If I kill the process then CPU load returns to normal, but the next time mate-appearance-properties is executed a CPU core is fully utilised again.

Regards, Martin.

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[raveit65]

Do you have a old .gtkrc or .gtkrc-2.0 file in your user configuration?
see.
http://forums.mate-desktop.org/viewtopic.php?f=2&t=1605
http://forums.mate-desktop.org/viewtopic.php?f=2&t=1674

[raveit65]

Can you remove/save those files for testing?
And what is gtk-theme-switch2?

[raveit65]

This file is broken because it pointed to a missing include "/home/ondra/.gtkrc-2.0.mine"

[flexiondotorg]

There is also a ~/.gtkrc-2.0 on the workstation of mine that exhibits this problem. Here is the content.

gtk-color-scheme = "base_color:#ffffff\nfg_color:#2e3436\ntooltip_fg_color:#ffffff\nselected_bg_color:#4a90d9\nselected_fg_color:#ffffff\ntext_color:#2e3436\nbg_color:#ededed\ntooltip_bg_color:#343434"

gtk-button-images = 1
gtk-menu-images = 1

gtk-xft-antialias = 1
gtk-xft-hinting = 1
gtk-xft-hintstyle = hintmedium
gtk-xft-rgba = none

I am remote from the workstation, but will test it on Monday 14th October.

[infirit]

This may be some other program, like the qt-config tool, that is doing this. I am not sure yet but I'll keep an eye on it.

[flexiondotorg]

I deleted ~/.gtkrc-2.0 and mate-appearance-properties works correctly and no longer hogs a CPU core. I've also re-saved my preferences using qt4-config and can confirm it is not responsible for recreating ~/.gtkrc-2.0.

[infirit]

This is very easilly reproducable with kde's "application appearance" system setting. Go to this and setup a gtk theme that is not the default, for example TraditionalOk. This will create 2 files, a proper gtkrc file and a symlink to this.

-rw-r--r-- 1 mate users 397 14 okt 16:44 .gtkrc-2.0
lrwxrwxrwx 1 mate users  23 14 okt 16:44 .gtkrc-2.0-kde4 -> /home/sander/.gtkrc-2.0

The content of this is:

# File created by KDE Gtk Config
# Configs for GTK2 programs 

include "/usr/share/themes/TraditionalOk/gtk-2.0/gtkrc"
style "user-font"
{
    font_name="Sans Serif "
}
widget_class "*" style "user-font"
gtk-font-name="Sans Serif  9"
gtk-theme-name="TraditionalOk"
gtk-icon-theme-name="oxygen"
gtk-fallback-icon-theme="menta"
gtk-toolbar-style=GTK_TOOLBAR_BOTH
gtk-menu-images=0
gtk-button-images=0

This should be handled more elegantly by mate's appearance property setting :)

[infirit]

After some more testing we found that for me the include line causes the problem. In my example this is the line below, commenting it makes all go back to normal.

include "/usr/share/themes/TraditionalOk/gtk-2.0/gtkrc

I checked and that file does exist, I hope this narrows it down :)

[infirit]

And I tried @flexiondotorg gtkrc and here it is the following line.

tk-color-scheme = "base_color:#ffffff\nfg_color:#2e3436\ntooltip_fg_color:#ffffff\nselected_bg_color:#4a90d9\nselected_fg_color:#ffffff\ntext_color:#2e3436\nbg_color:#ededed\ntooltip_bg_color:#343434"

[infirit]

Related issue mate-desktop/caja#350 (comment)

[RichardNeill]

For what it's worth, I also just saw this. Deleting the file fixes it:
As these files are generated by KDE... it really would be worth fixing the issue if possible - even with a workaround to simply ignore the file.

--- begin ---
cat ~/.local/share/Trash/files/.gtkrc-2.0

This file was written by KDE

You can edit it in the KDE control center, under "GTK Styles and Fonts"

include "/usr/share/themes/Clearlooks/gtk-2.0/gtkrc"
include "/etc/gtk-2.0/gtkrc"

style "user-font"
{
font_name="Tahoma"
}
widget_class "*" style "user-font"

gtk-theme-name="Clearlooks"
gtk-font-name="Tahoma 9"
---- end ---

[monsta]

Ok, I can also confirm the mentioned config file causes 100% CPU load.

[0181532686cf4a31163be0bf3e6bb6732bf]

Same thing here. MATE 1.10.2

[0181532686cf4a31163be0bf3e6bb6732bf]

http://forums.mate-desktop.org/viewtopic.php?f=2&t=1674 here it's advised to simply delete all .gtkrc* files

[pirate486743186]

lol, i had the same thing.... in 2017....
I suspect that was the cause for some glitches in Firefox and Seamonkey. I'll see if they reappear....

Isn't this actually a GTK bug?

[monsta]

Not sure, but might be GTK+ bug, yes. Were there any upstream reports on that?

[monsta]

Or maybe not. We have some old gtkrc parsing code here...

[sc0w]

I can reproduce the issue with gtk2 and mate-control-center 1.8.3

I can't reproduce the issue with gtk3 and mate-control-center 1.18.2

It is solved?

[flexiondotorg]

I can no longer reproduce this bug using MATE 1.22, 1.24 or 1.26. I will close this.