Comment 10 for bug 109721

Hi Guys,
I managed to overcome the Dual-Display Twinview Problem however...
GLX /Xgl still crashes horribly...

I tried the 2.6.20-16 & 2.6.20-15 kernels with all proprietary & non-proprietary Nvidia drivers...Xgl goes to 100% CPU and dies.
So although we still have dual display, no more compiz nor beryl in the twinview config.

To Reproduce:
Stop all X instances:
/etc/init.d/xorg-common stop && /etc/init.d/gdm stop
or
/etc/init.d/xorg-common stop && /etc/init.d/kdm stop #for kubuntu
then in the console run:
export DISPLAY=:1
sudo /usr/bin/Xgl :1 -fullscreen +xinerama &
glxgears &

...after a few seconds of spinning the Gears will slow down, XGL will go to 100% CPU and a few more mouse clicks will kill the X session completly.

heres some of my system info:
lspci |grep -i nvid
01:05.0 VGA compatible controller: nVidia Corporation NV43 [GeForce 6600/GeForce 6600 GT] (rev a2)

 modprobe -l |grep -i nvid
/lib/modules/2.6.20-16-generic/kernel/drivers/video/nvidia/nvidiafb.ko
/lib/modules/2.6.20-16-generic/kernel/drivers/char/agp/nvidia-agp.ko
/lib/modules/2.6.20-16-generic/volatile/nvidia.ko
/lib/modules/2.6.20-16-generic/volatile/nvidia_legacy.ko
/lib/modules/2.6.20-16-generic/volatile/nvidia_new.ko
Kernel:
2.6.20-16-generic #2 SMP
xserver-xorg 7.2-0ubuntu11
Feisty

thanks,
Jacob