Jan 31 13:17:41 -VirtualBox kernel: [ 3549.055408] traps: mate-
panel[3931] general protection fault ip:7f486e9721dc sp:7ffe38388ac8
error:0 in libcairo.so.2.11600.0[7f486e90d000+d3000]
** Also affects: mate-panel (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: gtk+3.0 (Ubuntu)
** Description changed:
I maintain and update a GTK2/3+ theme (http://winxp4life.tk), and with
- the latest version of GTK3 in Ubuntu 22.04, my theme no longer works due
- to a segfault caused by this rule:
+ the latest version of GTK3, Mate, and mate-panel in Ubuntu 22.04, my
+ theme no longer works due to a segfault caused by this rule:
.mate-panel-menu-bar {
- background-image: -gtk-gradient (linear,
- left top,
- left bottom,
- from (#3168d5),
- color-stop (0.15, #4490e6),
- color-stop (0.30, #235bd9),
- color-stop (0.90, #2562de),
- to (#1941a5));
- background-color: @selected_bg_color_top_menu;
- padding: 0px;
- color: @bg_color;
- text-shadow: none;
+ background-image: -gtk-gradient (linear,
+ left top,
+ left bottom,
+ from (#3168d5),
+ color-stop (0.15, #4490e6),
+ color-stop (0.30, #235bd9),
+ color-stop (0.90, #2562de),
+ to (#1941a5));
+ background-color: @selected_bg_color_top_menu;
+ padding: 0px;
+ color: @bg_color;
+ text-shadow: none;
}
If I remove the background-image property, the theme works and the
segfault doesn't happen. It appears that any -gtk-gradient set on
background-image for .mate-panel-menu-bar doesn't work and causes Mate
to segfault. I have to change the theme and restart to get things to
work again.
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You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gtk+3.0 in Ubuntu.
https://bugs.launchpad.net/bugs/2004432
Title:
GTK 3.2+ Theme mate-applications.css: segfault libcairo .mate-panel-
menu-bar background-image: -gtk-gradient
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mate-panel/+bug/2004432/+subscriptions
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