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Sylvain Munaut 246tnt at gmail.comHi, > I'm experiencing trouble installing gr-fosphor on my new laptop using ubuntu 18.04 LTS > Fist installed opengl/cl drivers, gnu-radio over the package manager, and gr-fosphor also with package manager,\ No idea what version is packaged ... > After that tried building gr-fosphor from source like described in the osmocom wiki. You can't mix a gnuradio package install with a source fosphor build. That won't work. > Press Enter to quit: [+] Selected device: GeForce MX250 > [!] CL Error (-5, /build/gr-fosphor-D4UWhK/gr-fosphor-3.7.0.2.7b6b996/lib/fosphor/cl.c:480): Unable to share spectrum VBO into OpenCL context This should definitely be fixed with the FLG_FOSPHOR_USE_CLGL_SHARING patch ... if this is set to 0, then the codepath where that error is printed is not even called ... > QT Gui error: > Executing: /usr/bin/python -u /home/paul/top_block.py > > File "/home/paul/top_block.py", line 75 > self.fosphor_qt_sink_c_0 = Template error: #set $win = 'self._%s_win'%$id > ^ > SyntaxError: invalid syntax GRC generated a bad file ... report that to the GRC team I guess. What version of GNURadio is this ? > WX Gui error: > Executing: /usr/bin/python -u /home/paul/top_block.py > > Warning: failed to XInitThreads() > [xcb] Unknown request in queue while dequeuing > [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called > [xcb] Aborting, sorry about that. > python: ../../src/xcb_io.c:165: dequeue_pending_request: Assertion `!xcb_xlib_unknown_req_in_deq' failed. Make sure that the XInitThreads call is first in the generated py file. Cheers, Sylvain