[mythtv-users] Ubuntu-mate on Raspberry pi and mythtv library problems.

[Peter Bennett (cats22)]

On 05/11/2016 02:11 PM, jrh wrote:
> Peter,
>
> I am replying to our irc conversation here as it is rather lengthy.
>
> Yes, I am still getting segfaults when starting mythfrontend.
>
> I have tried it setting LD_LIBRARY_PATH using env and on the same line
> as the mythfrontend command, as well as explicitly exporting it and
> running mythfrontend on its own.
>
> I then uninstalled the mythbuntu mythtv packages and installed your
> version and have the same results as above.
>
> Information:
>
> 2016-05-11 13:50:08.637676 I  No joystick configuration found, not
> enabling joystick control
> 2016-05-11 13:50:08.681297 E  CECAdapter: Failed to load libcec.
> 2016-05-11 13:50:08.681427 I  UDPListener: Enabling
> 2016-05-11 13:50:08.685268 I  Binding to UDP 127.0.0.1:6948
> <http://127.0.0.1:6948>
> 2016-05-11 13:50:08.685489 I  Binding to UDP 192.168.2.138:6948
> <http://192.168.2.138:6948>
> 2016-05-11 13:50:08.685666 I  Binding to UDP [::1]:6948
> 2016-05-11 13:50:08.685972 I  Binding to UDP
> [fe80::aa12:3be3:c1ac:2771%enxb827eb47b56a]:6948
> 2016-05-11 13:50:08.686192 I  Binding to UDP 192.168.2.255:6948
> <http://192.168.2.255:6948>
> Unable to find an X11 visual which matches EGL config 20
> Could not initialize OpenGL for RasterGLSurface, reverting to
> RasterSurface.
> 2016-05-11 13:50:08.919415 I  Using Frameless Window
> 2016-05-11 13:50:08.919442 I  Using Full Screen Window
> Handling Segmentation fault
> Segmentation fault (core dumped)
> jrh at rpiq3ubutest:~$ ^C
> jrh at rpiq3ubutest:~$ 
>
>
> I found something interesting in that the library
> in /usr/lib/arm-linux-gnueabihf/mesa-egl did not have a link or a file
> named libGLESv2.so so I created one that was linked to libGLESv2.so.2.0.0
>
> The sizes after linking are as follows:
>
> ls -l /opt/vc/lib/libGLESv2.so
> -rw-r--r-- 1 root root 105768 Apr 20 14:59 /opt/vc/lib/libGLESv2.so
>  ls -lL /usr/lib/arm-linux-gnueabihf/mesa-egl/libGLESv2.so
> -rw-r--r-- 1 root root 25900 A/usr/lib/arm-linux-gnueabihf/mesa-egl/pr
> 14 15:29 libGLESv2.so
>
> After I created the link, the segfault no longer occurs, however an
> error happens much sooner as follows:
>
> mythfrontend
> mythfrontend: symbol lookup error: /opt/vc/lib/libEGL.so: undefined
> symbol: glPointSizePointerOES
>
> The above occurs regardless of whether I use the env version of the
> command, or exporting the library path explicitly before exec.
>
> Regards!
>
>
>

This is how mine looks

/usr/lib/arm-linux-gnueabihf/mesa-egl:
total 168
-rw-r--r-- 1 root root     38 Apr 14 15:27 ld.so.conf
lrwxrwxrwx 1 root root     15 Apr 14 15:28 libEGL.so -> libEGL.so.1.0.0
lrwxrwxrwx 1 root root     15 Apr 14 15:28 libEGL.so.1 -> libEGL.so.1.0.0
-rw-r--r-- 1 root root 122344 Apr 14 15:29 libEGL.so.1.0.0
lrwxrwxrwx 1 root root     21 Apr 14 15:28 libGLESv1_CM.so.1 ->
libGLESv1_CM.so.1.1.0
-rw-r--r-- 1 root root  13612 Apr 14 15:29 libGLESv1_CM.so.1.1.0
lrwxrwxrwx 1 root root     18 Apr 14 15:28 libGLESv2.so ->
libGLESv2.so.2.0.0
lrwxrwxrwx 1 root root     18 Apr 14 15:28 libGLESv2.so.2 ->
libGLESv2.so.2.0.0
-rw-r--r-- 1 root root  25900 Apr 14 15:29 libGLESv2.so.2.0.0

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