gnome-system-monitor 2.22.1 works in 24-bit?

I have tried to use gnome-system-monitor on a 24-bit display configuration under X:

/etc/X11/xorg.conf:

Section “Screen”
DefaultDepth 24
SubSection “Display”
Depth 15
Modes “1440x900” “1280x800” “1024x768” “800x600”
EndSubSection
SubSection “Display”
Depth 16
Modes “1440x900” “1280x800” “1024x768” “800x600”
EndSubSection
SubSection “Display”
Depth 24
Modes “1440x900” “1280x800” “1024x768” “800x600”
EndSubSection
SubSection “Display”
Depth 8
Modes “1440x900” “1280x800” “1024x768” “800x600”
EndSubSection
Device “Device[0]”
Identifier “Screen[0]”
Monitor “Monitor[0]”
EndSection

but the application can’t seem to draw on the display – it is assuming a 16-bit display instead.

To confirm this, setting DefaultDepth to 16 fixes the problem, however, at the cost of having everything run under a 16-bit display.

Is there a fix or a known workaround to getting gnome-system-monitor to run under a 24-bit display?

Thanks.

–tonza