Graphics error drawing selection

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        Linux-4.15.0-91-generic-x86_64-with-debian-buster-sid
ChimeraX Version: 0.92 (2020-02-20)
Description
(Describe the actions that caused this problem to occur here)

Log:
UCSF ChimeraX version: 0.92 (2020-02-20)  
© 2016-2020 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open
> /media/hrishikesh/Chae3-Es3/hEC/P15/J63/cryosparc_P15_J63_011_volume_map.mrc

Opened cryosparc_P15_J63_011_volume_map.mrc, grid size 400,400,400, pixel
0.654, shown at level 0.025, step 2, values float32  

> volume #1 level 0.03328

> volume #1 step 1

> open /home/hrishikesh/Downloads/old_structure_hEC.mrc

Opened old_structure_hEC.mrc, grid size 380,380,380, pixel 0.82, shown at
level 0.0398, step 2, values float32  

> volume #2 level 0.09633

> tile

> hide #!2 models

> show #!2 models

> select #2

2 models selected  
An error occurred in drawing the scene. Redrawing graphics is now stopped to
avoid a continuous stream of error messages. To restart graphics use the
command "graphics restart" after changing the settings that caused the error.  
  
Traceback (most recent call last):  
File "/usr/lib/ucsf-chimerax-daily/lib/python3.7/site-
packages/chimerax/core/updateloop.py", line 73, in draw_new_frame  
view.draw(check_for_changes = False)  
File "/usr/lib/ucsf-chimerax-daily/lib/python3.7/site-
packages/chimerax/core/graphics/view.py", line 166, in draw  
self._draw_scene(camera, drawings)  
File "/usr/lib/ucsf-chimerax-daily/lib/python3.7/site-
packages/chimerax/core/graphics/view.py", line 235, in _draw_scene  
r.outline.set_outline_mask() # copy depth to outline framebuffer  
File "/usr/lib/ucsf-chimerax-daily/lib/python3.7/site-
packages/chimerax/core/graphics/opengl.py", line 1733, in set_outline_mask  
cfb.copy_to_framebuffer(mfb, color=False)  
File "/usr/lib/ucsf-chimerax-daily/lib/python3.7/site-
packages/chimerax/core/graphics/opengl.py", line 2166, in copy_to_framebuffer  
GL.glBlitFramebuffer(0, 0, w, h, 0, 0, w, h, what, GL.GL_NEAREST)  
File "/usr/lib/ucsf-chimerax-daily/lib/python3.7/site-
packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/baseplatform.py", line 415,
in __call__  
return self( *args, **named )  
File "src/errorchecker.pyx", line 58, in
OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError  
OpenGL.error.GLError: GLError(  
err = 1282,  
description = b'invalid operation',  
baseOperation = glBlitFramebuffer,  
cArguments = (  
0,  
0,  
2239,  
1776,  
0,  
0,  
2239,  
1776,  
256,  
GL_NEAREST,  
)  
)  
  




OpenGL version: 3.3 (Core Profile) Mesa 19.2.8
OpenGL renderer: llvmpipe (LLVM 9.0, 256 bits)
OpenGL vendor: VMware, Inc.

[Tom Goddard]

This has been reported several times, glBlitFramebuffer error, I believe only on Linux with VMWare. Possible graphics driver bug.