[Ambulant-users] Core dumps on Fedora 12

Kees Blom Kees.Blom at cwi.nl
Sun Jul 25 13:30:27 CEST 2010

Hello Andy,

sound on Fedora 12 is a rather complex issue, since a number of packages are involved,
all different.   When I worked on Fedora and got into sound trouble I often did the following:
- try if mplayer and ffplay do play .mp3 sound
- restart pulseaudio
- try esd (an obsoleted sound deamon, but maybe still used by SDL).
This core dump is new to me, at first sight it seems that it is caused  inside the pango package.
Did you also try AmbulanrPlayer-qt ? That doesn't use pango.
For this to build, you need to install qt3 and qt3-devel packages, I believe.
I'll look into more detail tomorrow.


Kees Blom.

On Jul 25, 2010, at 3:11 AM, andy m wrote:

> I have built from sources without any compilation errors although the
> patch file for expat generated an error with the autotools config
> scripts and so I added a .pc file with what looked correct to me for
> the system expat library. It seemed to then find expat and build
> without complaint.
> When I run Ambulent_gtk and point it at Welcome.smil I see the text
> but no sound and get a couple of popups with the error messages:
> file:///home/pub/ambulant-2.2/Extras/Welcome/data/AmbulantTune.mp3:
> cannot open audio file
> file:///home/pub/ambulant-2.2/Extras/Welcome/data/AmbulantTune.mp3:
> Cannot open, no compatible parser
> I have spent quite a while installing various sound related
> development packages (sdl_sound, pulse, gstreamer, alsa, lame,...) in
> an attempt to find something that will provide sound but without
> success. What does it want?
> When I point it at the NYC demo I see some text followed by some
> pictures and then in the console:
> (AmbulantPlayer_gtk:25563): Pango-WARNING **: shaping failure, expect
> ugly output. shape-engine='BasicEngineFc', font='DejaVu Sans 10',
> text='file:///home/pub/ambulant-2.2/Extras/DemoPresentation/NYCdata/SIF-Intro.mp3:
> Cannot open, no compatible parser'
> Segmentation fault (core dumped)
> and in /var/log/messages:
> Jul 25 03:06:28 localhost kernel: AmbulantPlayer_[25563]: segfault at
> 7e3e446 ip 00465c26 sp bfad75c0 error 7 in
> libglib-2.0.so.0.2200.5[40f000+e8000]
> Jul 25 03:06:28 localhost kernel: AmbulantPlayer_[25599]: segfault at
> 662d7369 ip 00464507 sp b4815fe0 error 4 in
> libglib-2.0.so.0.2200.5[40f000+e8000]
> Suggestions?
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