Re: xorg transparency and shadows

[Brett Viren <bv@bnl.gov>]

"Jean-Luc Coulon (f5ibh)" <jean.luc.coulon@gmail.com> writes:

> I have an ATI radeon 9250 (the latest on with open source drivers).
> With a rate of about 900+, the transparency is *very* slow.

I tried this yesterday on radeon 9200 (using 32 bit Debian).  What I
found is fglrx doesn't have the "Xdamage" extension implemented so
xcompmgr won't run.

I was able to get the free "radeon" driver working with Xdamage and
XComposite extensions turned on:

Section "Extensions"
        Option "Composite" "enabled"
        Option "DAMAGE" "enabled"
EndSection

Note the capitalization.  I also stuck in "RENDER" and "XFIXES" for
good measure.  This did give me transparency but as you note it was
dead slow.  It also didn't redraw the desktop background correctly
(left trails) when windows were moved around.


So, yeah, ATI is not in good shape for this latest whiz bang feature.
Too bad all my laptops use ATI chips....

-Brett.