From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.1) Gecko/20031009
Description of problem:
When using the transparent effect in the gnome-terminal profil with a black
screen whitout picture, very high CPU utilization, if I disable this effect or
set a background picture (PNG), the CPU is restored !
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.unset background picture and just have a black background
2.run the gnome-terminal
3.set the transparent effect
Actual Results: High CPU utilization
This is not a bug of gnome-terminal, but rather a limitation of X.
Follow this upstream development project that may one day give us
"alpha blending" type wicked cool effects like this. After xorg gains
this feature in the future, I suspect software like gnome-terminal may
need modification usptream to support it. Talk to the upstream
authors at that time.
I cannot reproduce this with vte-0.11.10-7 and gnome-terminal-2.7.3-1
gconftool-2 -R /desktop/gnome/background
color_shading_type = vertical-gradient
secondary_color = #687096
primary_color = #8A94C6
picture_filename = /usr/share/backgrounds/images/default.png
picture_options = none
picture_opacity = 100
draw_background = true
So looks like its definitely notabug.