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Old 05-16-2016, 02:12 PM   #1
LQ Newbie
Registered: Jun 2005
Posts: 3

Rep: Reputation: 0
CYGWIN OpenGL failure when using multiwindow

I am using Cygwin/X to connect remotely over SSH to a server. I typically use multiwindow. When I start a software requiring OpenGL, I get the following Error and the program exits:

X Error of failed request: GLXBadRenderRequest
Major opcode of failed request: 148 (GLX)
Minor opcode of failed request: 1 (X_GLXRender)
Serial number of failed request: 1074
Current serial number in output stream: 1075
glxinfo | grep OpenGL gives:
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: Quadro 4000/PCIe/SSE2
OpenGL version string: 1.4 (4.4.0)
OpenGL extensions:
That IS my graphics card.

Now when I start Cygwin Xserver in a non-multiwindow mode, the software works fine.

I notice the output of glxinfo is different:
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.4, 128 bits)
OpenGL version string: 3.0 Mesa 10.2.8
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
I'd appreciate any suggestions
Old 05-29-2016, 06:49 PM   #2
Registered: Mar 2003
Location: Mansfield Queensland Australia
Distribution: Linux Mint - Tara
Posts: 497

Rep: Reputation: 35
I'm sorry, but the only thing I can suggest is maybe fiddling around in the kernel's graphics card section and recompiling the kernel.


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