Dear PyMOL and O list members,
I just got stereo working on my machine (PC, Red Hat 9, Radeon8500
(64MB) video card) after installing Xi Graphic's Summit v2.2 DX-Platinum
drivers to enable quad-buffered software stereo, but I noticed that 3D
stereo rendering in 'PyMOL' and 'O' seems a lot slower than it used to
be (same hardware, but w/ Mandrake and v2.1 Summit drivers). So, I have
2 questions (that may or may not be related to the sluggishness):
(1) After installing xvsc and summit drivers, is any further
configuration required to insure proper usage of the Accelerated-X
openGL libraries, include files, etc.? I ask this because I noticed that
GL-based programs such as PyMOL are NOT using the Accelerated-X library
"libXda.so.1"...
For example, if I type "ldd /usr/X11R6/bin/xglinfo" I get the following:
[r...@cm1 etc]# ldd /usr/X11R6/bin/xglinfo
libGLU.so.1 => /usr/lib/libGLU.so.1 (0x4002d000)
libGL.so.1 => /usr/X11R6/lib/sav-GL/libGL.so.1 (0x400b2000)
libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x40125000)
libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x40134000)
libm.so.6 => /lib/tls/libm.so.6 (0x40213000)
libc.so.6 => /lib/tls/libc.so.6 (0x42000000)
libpthread.so.0 => /lib/tls/libpthread.so.0 (0x40235000)
libdl.so.2 => /lib/libdl.so.2 (0x40243000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
I guess I could remove the paths to the old mesa GL libraries and
include files ("/usr/include/GL/sav-GLinc/" and
"/usr/X11R6/lib/sav-GL/") from /etc/ld.so.conf, but then other GL-based
applications don't seem to work?? So, is there anything special i need
to do in order to make the "libXda.so.1" module used instead of the
standard Mesa openGL ones???
(2) Upon start-up, GL-based applications give the following line:
"Xlib: extension "XFree86-DRI" missing on display ":0.0".
I'm wondering what this problem means (if anything), and how it may be
corrected??
Thanks for any advice!
Cameron
