The VideoLAN Forums

Posted: **13 Feb 2020 12:16**

I have iGPU intel UHD Graphics 630 and a dGPU Nvidia rtx 2060. I've merged vlc-3.0.8 on Gentoo. On running VLC, it segfaults. gdb reports the following

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$ gdb --args `which vlc`
GNU gdb (Gentoo 8.3.1 vanilla) 8.3.1
Copyright (C) 2019 Free Software Foundation, Inc.
...
Registered pretty printers for UE4 classes
Reading symbols from /usr/bin/vlc...
Reading symbols from /usr/lib/debug//usr/bin/vlc.debug...
(gdb) run
Starting program: /usr/bin/vlc
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
VLC media player 3.0.8 Vetinari (revision 3.0.8-0-gf350b6b5a7)

Program received signal SIGSEGV, Segmentation fault.
do_lookup_x (
    undef_name=undef_name@entry=0x7ffff6ca18f8 "_ITM_deregisterTMCloneTable",
    new_hash=new_hash@entry=2247416213,
    old_hash=old_hash@entry=0x7fffffffc080, ref=0x7ffff6ca13d8,
    result=result@entry=0x7fffffffc090, scope=<optimized out>, i=0,
    version=0x0, flags=1, skip=0x0, type_class=4, undef_map=0x5555555ebfb0)
    at dl-lookup.c:350
350         const struct link_map *map = list[i]->l_real;

I have nvidia drivers merged, but I'm pci-passthrouging it to Windows Qemu. I believe I have to someway let know the VLC to use intel GPU and the monitor connected to the onboard HDMI port. If so, how can I do that?

Posted: **13 Feb 2020 21:59**

There's nothing special about VLC w.r.t. GPU selection. It just uses X11 and OpenGL like any other app.

Posted: **14 Feb 2020 08:39**

why the segmentation fault? should I've to file a bug?

Posted: **14 Feb 2020 14:44**

thread all apply bt

Posted: **15 Feb 2020 09:59**

there is no build log other than

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$ vlc                                                         
VLC media player 3.0.8 Vetinari (revision 3.0.8-0-gf350b6b5a7)
Segmentation fault

compiling vlc-9999 fails with following error

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hw/nvdec/nvdec_gl.c:190:24: error: ‘CudaFunctions’ {aka ‘struct CudaFunctions’} has no member named ‘cuCtxGetDevice’

complete build log:

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$ split -b 23k /var/tmp/portage/media-video/vlc-9999/temp/build.log build.log;fs=(build.log*);tot=${#fs[@]};i=0;for f in ${fs[@]}; do if [ $i -lt 3 ] || [ $i -gt $(( $tot - 3 )) ]; then wgetpaste -s dpaste $f; echo ""; fi; i=$(( $i + 1 )); done;rm -f build.log*
Your paste can be seen here: http://dpaste.com/3QMM0JG
Your paste can be seen here: http://dpaste.com/0FS156W
Your paste can be seen here: http://dpaste.com/2J1A8KK
Your paste can be seen here: http://dpaste.com/39VB83Z
Your paste can be seen here: http://dpaste.com/0G699GE

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SIGSEGV at do_lookup_x

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