Edgy, Toshiba tecra M1, XP4m32 Trident graphics chip, and Scrolling a window

After i installed a new version of ubuntu (the Edgy Eft) on my tarantula, i found that my video card wasnt work properly especially when im doing fast scrolling, after i searching it through many search engine just to find some "typical problems" (noted: ive already configure my xserver for many times but wont work), i found a link that make my video card works perfect on Edgy

just do this steps

#apt-get install xorg-dev
#apt-get build-dep xorg-server
#wget -c http://xorg.freedesktop.org/releases/individual/\
driver/xf86-video-trident-1.2.3.tar.bz2
#tar xjf xf86-video-trident-1.2.3.tar.bz2
#cd video-trident-1.2.3
#./configure
#make
#make DESTDIR=/tmp/xorg_ install
--- Backup old driver
#sudo mv /usr/lib/xorg/modules/drivers/trident_drv.so /usr/lib/xorg/modules/drivers/trident_drv.so.bak
--- Install new one
#cd /tmp/xorg_/usr/local/lib/xorg/modules/drivers/
#sudo mv * /usr/lib/xorg/modules/drivers/

Restart X and your're set.

references : https://launchpad.net/distros/ubuntu/+source/xserver-xorg-video-trident/+bug/67620
thx to Stefan Sonnenberg-Carstens for the steps, and Alan Hourihane for the trident drivers patch.