Xorg Accelerated Driver for Chips 65550 in PowerBook 3400c

Hello,

I'm looking for an accelerated Xorg driver for the Chips 65550 video 
card in a PowerBook 3400c. When installed, the driver would be in a 
location such as "/usr/lib/xorg/modules/drivers/chips_drv.so".

Perhaps the Xorg Chips driver has been discontinued? If yes, is there an 
older or alternate driver that might work?

I have had some success using video=ofonly, which appears to use the 
fbdev driver, but I would like to use an Xorg accelerated driver if one 
is available.

I found this page:
https://www.x.org/wiki/Projects/Drivers/

However, there is no information about where to download the binary or 
source for the chips driver.

These Debian SID packages are associated with other display drivers:

Debian Package              Filename
xserver-xorg-video-ati      /usr/lib/xorg/modules/drivers/ati_drv.so
xserver-xorg-video-fbdev    /usr/lib/xorg/modules/drivers/fbdev_drv.so
xserver-xorg-video-radeon   /usr/lib/xorg/modules/drivers/radeon_drv.so
xserver-xorg-video-vesa     /usr/lib/xorg/modules/drivers/vesa_drv.so

So I would expect the Chips 65550 ("chips" or "ct-65550") driver to be 
in a package called "xserver-xorg-video-chips" or something similar, if 
the driver hasn't been discontinued.

I sent a message to the Xorg maintainer of the chips driver, Egbert 
Eich, but I haven't received a response.

Chips 65550 is enabled in the kernel:
# fgrep 65550 .config
CONFIG_FB_CT65550=y

Thanks for any information, and please avoid flames if there's something 
basic that I'm overlooking here.

-Stan Johnson