| Re: Graphics Card/GL [message #25377] |
Tue, 12 June 2001 11:38  |
J�lio Maranh�o
Messages: 8
Registered: May 2000
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Junior Member |
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Ok, this is a good starting point, but I got the main question.
After installing the nvidia drivers as Rick pointed, we should have the
following status:
Mesa is disabled to all programs (I suppose there was a Mesa in the Linux
distro).
NVidia OpenGl drivers should be seen by all programs. This worked for me
since Quake3 and some Mesa demos got acceleration.
The problem is IDL has his own Mesa drivers in somewhere its sub-dirs. IDL
doesn't worry if your system has Mesa, NVidia or whatelse drivers as it uses
his own. But I tried to make some soft links to point to the general drivers
and all I got was a broken idlde.
So if someone has the stone's path to overcome this problem we are waiting.
Maybe Research Systems could help as they know how IDL-Mesa works.
That's all. Cheers.
J�lio Maranh�o
"Rick Towler" <rtowler@u.washington.edu> wrote in message
news:9frm99$bt6$1@nntp6.u.washington.edu...
> go to http://www.nvidia.com/view.asp?PAGE=linux
>
> you can pick up the driver components and the installation instructions
> there.
>
> -Rick Towler
>
>
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| Re: Graphics Card/GL [message #25457 is a reply to message #25377] |
Wed, 13 June 2001 10:36  |
Karl Schultz
Messages: 341
Registered: October 1999
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Senior Member |
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J�lio,
On a Linux system, IDL 5.4 does NOT try to use any of the
OpenGL or Mesa libraries that you may have installed on your Linux system.
So, basically, IDL ignores any effort you may make with configuring
OpenGL/Mesa on your system. Instead, IDL simply uses the Mesa
libraries that come with IDL.
One way to tell if IDL attempts to use the OpenGL libraries is to look
for the existance of a "gl_driver.so" file in the IDL binary directory.
Most Unix IDL distributions have this file. Those that do not are
for those platforms that do not have OpenGL support or those platforms
that do not have stable enough OpenGL support to run IDL.
Linux is one of these platforms for IDL 5.4. At the time IDL 5.4 was
released, the OpenGL support story on Linux was pretty incomplete
and unstable. So, IDL 5.4 won't try to use the OpenGL libs on
your Linux.
The Mesa story is a bit more complicated still. In short, you need
to rebuild Mesa from source with some additional flags set.
If you are *really* interested in doing this, please contact me
directly.
Karl Schultz
RSI
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