[Bug 297861] New: Crashes with Phonon issues

[Jeffrey G Thomas]

https://bugs.kde.org/show_bug.cgi?id=297861

            Bug ID: 297861
          Severity: crash
           Version: 1.0
          Priority: NOR
          Assignee: unassigned-bugs at kde.org
           Summary: Crashes with Phonon issues
    Classification: Unclassified
                OS: Linux
          Reporter: eljefedelito at gmail.com
          Hardware: Debian unstable
            Status: UNCONFIRMED
         Component: general
           Product: systemsettings

Application: systemsettings (1.0)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.2.0-2-686-pae i686
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:
Trying to get Phonon's VLC backend to work; I can't get audio from KDE apps and
I get the error, "Phonon's VLC backend failed to start."  Audio works in
Chromium and other non-KDE apps while running my Plasma desktop.


- Unusual behavior I noticed:
Phonon audio doesn't work and troulbeshooting it causes this error.

In my .xsession-errors file I have:

systemsettings(10370)/kdecore (KLibrary) findLibraryInternal: plugins should
not have a 'lib' prefix: "libaudiocd_encoder_flac.so"
systemsettings(10370)/kdecore (KLibrary) findLibraryInternal: plugins should
not have a 'lib' prefix: "libaudiocd_encoder_lame.so"
systemsettings(10370)/kdecore (KLibrary) findLibraryInternal: plugins should
not have a 'lib' prefix: "libaudiocd_encoder_vorbis.so"
systemsettings(10370)/kdecore (KLibrary) findLibraryInternal: plugins should
not have a 'lib' prefix: "libaudiocd_encoder_wav.so"
PHONON-VLC [FATAL__] Phonon::VLC::vlcInit: Failed to initialize VLC 
WARNING: Phonon::createPath: Cannot connect  Phonon::MediaObject ( no
objectName ) to  Phonon::AudioOutput ( no objectName ). 
WARNING: Phonon::createPath: Cannot connect  Phonon::MediaObject ( no
objectName ) to  Phonon::AudioOutput ( no objectName ). 
systemsettings(10370)/kdecore (KConfigSkeleton)
KCoreConfigSkeleton::writeConfig:
KCrash: Application 'systemsettings' crashing...
KCrash: Attempting to start /usr/lib/kde4/libexec/drkonqi from kdeinit
X Error: BadWindow (invalid Window parameter) 3
  Major opcode: 20 (X_GetProperty)
  Resource id:  0x5e0015a
X Error: BadWindow (invalid Window parameter) 3
  Major opcode: 20 (X_GetProperty)
  Resource id:  0x5e0015a
X Error: BadWindow (invalid Window parameter) 3
  Major opcode: 20 (X_GetProperty)
  Resource id:  0x5e00142
Enchant dict for "en_US" 0xa000118 
Enchant dict for "en_US" 0xa000118

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library
"/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1".
[KCrash Handler]
#7  QLibrary::unload (this=0x0) at plugin/qlibrary.cpp:830
#8  0xb5a60254 in LibVLC::vlcUnload (this=0xa01bca0) at
../../src/utils/libvlc.cpp:270
#9  0xb5a602b1 in LibVLC::~LibVLC (this=0xa01bca0, __in_chrg=<optimized out>)
at ../../src/utils/libvlc.cpp:45
#10 0xb5a53483 in Phonon::VLC::Backend::~Backend (this=0xa022c00,
__in_chrg=<optimized out>) at ../../src/backend.cpp:122
#11 0xb5a53522 in Phonon::VLC::Backend::~Backend (this=0xa022c00,
__in_chrg=<optimized out>) at ../../src/backend.cpp:130
#12 0x4c3f0dec in ?? () from /usr/lib/libphonon.so.4
#13 0x4c3f0fa2 in ?? () from /usr/lib/libphonon.so.4
#14 0x4c3f08d2 in ?? () from /usr/lib/libphonon.so.4
#15 0x49db86fc in qt_call_post_routines () at kernel/qcoreapplication.cpp:255
#16 0x424c768a in QApplication::~QApplication (this=0xbfbcd54c,
__in_chrg=<optimized out>) at kernel/qapplication.cpp:1106
#17 0x4b22c3e8 in KApplication::~KApplication (this=0xbfbcd54c,
__in_chrg=<optimized out>) at ../../kdeui/kernel/kapplication.cpp:894
#18 0x4b234198 in KUniqueApplication::~KUniqueApplication (this=0xbfbcd54c,
__in_chrg=<optimized out>) at ../../kdeui/kernel/kuniqueapplication.cpp:347
#19 0x08050d52 in main (argc=<error reading variable: Cannot access memory at
address 0x3>, argv=<error reading variable: Cannot access memory at address
0x7>) at ../../../systemsettings/app/main.cpp:49

Reported using DrKonqi

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