On GNU/Linux Debian (unstable/sid, pygame 1.9.1release+dfsg-10+b2 or 1.9.3+dfsg-2+b1), while trying to run tests. Happens under xvfb or “natively”, here is an example with some traceback for context:
(git)hopa:~exppsy/psychopy[debian]build
$> USER=nobody TRAVIS=true xvfb-run -s "-screen 0 1024x768x24 -ac +extension GLX +render -noreset" gdb --args python -m pytest --tb=line -v -s -m "not needs_sound" ../psychopy
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Reading symbols from python...Reading symbols from /usr/lib/debug/.build-id/2e/a27a68b5bddba5a8e23fb91e7f5e464d6d864c.debug...done.
done.
(gdb) r
Starting program: /usr/bin/python -m pytest --tb=line -v -s -m not\ needs_sound ../psychopy
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
====================================================================================================== test session starts =======================================================================================================
platform linux2 -- Python 2.7.13, pytest-3.0.6, py-1.4.32, pluggy-0.4.0 -- /usr/bin/python
cachedir: ../.cache
rootdir: /home/yoh/deb/gits/pkg-exppsy/psychopy, inifile: pytest.ini
plugins: xdist-1.15.0, localserver-0.3.6
[New Thread 0x7fffd8c1c700 (LWP 14858)]
[New Thread 0x7fffd641b700 (LWP 14859)]
[New Thread 0x7fffd3c1a700 (LWP 14860)]
[Thread 0x7fffd3c1a700 (LWP 14860) exited]
[Thread 0x7fffd641b700 (LWP 14859) exited]
[Thread 0x7fffd8c1c700 (LWP 14858) exited]
[New Thread 0x7fffd3c1a700 (LWP 14862)]
[New Thread 0x7fffd641b700 (LWP 14863)]
[New Thread 0x7fffd8c1c700 (LWP 14864)]
[New Thread 0x7fffce1fc700 (LWP 14865)]
[New Thread 0x7fffbf711700 (LWP 14866)]
[New Thread 0x7fffbef10700 (LWP 14867)]
[New Thread 0x7fffbe70f700 (LWP 14868)]
[New Thread 0x7fffbdbc2700 (LWP 14869)]
[New Thread 0x7fffbd3c1700 (LWP 14870)]
collecting 2 items[Thread 0x7fffbd3c1700 (LWP 14870) exited]
[New Thread 0x7fffbd3c1700 (LWP 14881)]
[New Thread 0x7fff985c1700 (LWP 14882)]
[New Thread 0x7fff97dc0700 (LWP 14883)]
[New Thread 0x7fff975bf700 (LWP 14884)]
collecting 280 items[New Thread 0x7fff96218700 (LWP 14890)]
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for 4294967295, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for 4294967295, skipping unlock
[Thread 0x7fff96218700 (LWP 14890) exited]
[New Thread 0x7fff96197700 (LWP 14891)]
[New Thread 0x7fff96197700 (LWP 14892)]
[Thread 0x7fff96197700 (LWP 14891) exited]
[New Thread 0x7fff85996700 (LWP 14893)]
collecting 299 items[New Thread 0x7fff73454700 (LWP 14910)]
[Thread 0x7fffbdbc2700 (LWP 14869) exited]
[New Thread 0x7fffbdbc2700 (LWP 14912)]
[Thread 0x7fffbdbc2700 (LWP 14912) exited]
collecting 373 items5.0164 WARNING Monitor specification not found. Creating a temporary one...
5.0168 WARNING Requested an unavailable screen number - using first available.
5.0171 WARNING User requested fullscreen with size [800 600], but screen is actually [1024, 768]. Using actual size
6.2692 EXP Created window1 = Window(allowGUI=True, allowStencil=False, autoLog=True, bitsMode=UNKNOWN, blendMode='avg', color=array([ 0., 0., 0.]), colorSpace='rgb', fullscr=UNKNOWN, gamma=None, lms=UNKNOWN, monitor=<psychopy.monitors.calibTools.Monitor object at 0x7fff71cd6610>, multiSample=False, name='window1', numSamples=2, pos=[0, 0], screen=1, size=array([1024, 768]), stereo=False, units=u'norm', useFBO=True, useRetina=False, viewOri=0.0, viewPos=None, viewScale=None, waitBlanking=True, winType='pyglet')
6.2696 INFO Using gamma ramp type: 0
6.2697 WARNING It looks like we're running in the Travis-CI testing environment. Hardware gamma table cannot be set
6.2697 EXP window1: gamma = 1.0
6.2721 EXP window1: mouseVisible = True
Exception AttributeError: "'NoneType' object has no attribute 'close'" in <bound method BitsSharp.__del__ of <psychopy.hardware.crs.bits.BitsSharp object at 0x7fff71cf5ad0>> ignored
collecting 373 items / 1 errorsWe need to run some tests on your graphics card (hopefully just once).
The BitsSharp will go into status mode while this is done.
It can take a minute or two...
Thread 1 "python" received signal SIGSEGV, Segmentation fault.
0x00007fffeeb19300 in ?? () from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
(gdb) bt 10
#0 0x00007fffeeb19300 in () at /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
#1 0x00007fffeeb1974c in FcPatternAddDouble () at /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
#2 0x00007ffff5122038 in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#3 0x00007ffff5121a9a in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#4 0x00007ffff5392224 in _call_function_pointer (argcount=3, resmem=0x7fffffff3d90, restype=<optimized out>, atypes=0x7fffffff3d30, avalues=0x7fffffff3d60, pProc=0x7fffeeb19710 <FcPatternAddDouble>, flags=4353)
at ./Modules/_ctypes/callproc.c:841
#5 0x00007ffff5392224 in _ctypes_callproc (pProc=0x7fffeeb19710 <FcPatternAddDouble>, argtuple=
(1520859024, 'size', <c_double at remote 0x7fff71cf2b00>), flags=4353, argtypes=0x0, restype=<_ctypes.PyCSimpleType at remote 0x5555579995f0>, checker=0x0) at ./Modules/_ctypes/callproc.c:1184
#6 0x00007ffff5391be5 in PyCFuncPtr_call.lto_priv.56 (self=<optimized out>, inargs=<optimized out>, kwds=<optimized out>) at ./Modules/_ctypes/_ctypes.c:3979
#7 0x000055555563b673 in PyObject_Call (func=<_FuncPtr(__name__='FcPatternAddDouble') at remote 0x7fff6fa5b7a0>, arg=<optimized out>, kw=<optimized out>) at ../Objects/abstract.c:2547
#8 0x0000555555654e2f in do_call (nk=<optimized out>, na=3, pp_stack=0x7fffffff4090, func=<_FuncPtr(__name__='FcPatternAddDouble') at remote 0x7fff6fa5b7a0>) at ../Python/ceval.c:4569
#9 0x0000555555654e2f in call_function (oparg=<optimized out>, pp_stack=0x7fffffff4090) at ../Python/ceval.c:4374
#10 0x0000555555654e2f in PyEval_EvalFrameEx (f=Frame 0x7fff71cf6850, for file /usr/lib/python2.7/dist-packages/pyglet/font/freetype.py, line 323, in get_fontconfig_match (name='', size=38, bold=80, italic=0, pattern=1520859024), throwflag=0) at ../Python/ceval.c:2989