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Date:	Thu, 12 Feb 2004 17:59:45 -0500
From:	"Robert J. Bobrow" <rusty AT bbn DOT com>
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To:	cygwin AT cygwin DOT com
Subject:	OpenGL speed problems under bash vs. DOS on Dell m60
X-Scanned-By:	MIMEDefang 2.28 (www . roaringpenguin . com / mimedefang)

Cygwin OpenGL folks,
 I have been having problems with the latest version of Cygwin on a Dell 
M60. I have a piece of Java (JOGL) based visualization code that works 
fine (renders at ~14 frames/second) on other machines, both laptops and 
desktops. On the M60 with the newest Cygwin the speed drops to 2 
frames/second, when I run the code from bash. When I run the identical 
code from a DOS prompt, the code runs 7 times faster. It is as if under 
bash, the opengl does not realize that the nVidia card is there, and 
does everything in software.  A further test shows that if I run a 
command shell (cmd) under bash, and then start up my code, the display 
runs as fast as it does under the DOS prompt.

Do you have any idea why this is likely to be the case. I would hate to 
give up using bash for my work.
--Rusty Bobrow
Division Scientist
BBN Technologies


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