he hecho unas pruebas,con el ati 15.7 desde live 4.11 he compilao avidemux y despues no arranca y con el 14.12 si,prueba tu mismo usuarionuevo y veras,otra cosa,no me aparece apulse en el menu de avidemux para seleccionarlo o hay que iniciar apulse antes?
wifislax ~ # avidemux3_qt4
Directory /root/.avidemux6/ exists.Good.
Using /root/.avidemux6/ as base directory for prefs, jobs, etc.
*************************
Avidemux v2.6.10 (0) .
*************************
http://www.avidemux.org Code : Mean, JSC, Grant Pedersen
GFX : Nestor Di, nestordi@augcyl.org
Design : Jakub Misak
FreeBSD : Anish Mistry, amistry@am-productions.biz
Audio : Mihail Zenkov
Mac OS X : Kuisathaverat, Harry van der Wolf
Win32 : Grant Pedersen
Compiler: GCC 4.9.2
Build Target: Linux (x86)
User Interface: Qt (4.8.7)
Large file available: 1 offset
Time: Sat Jul 25 12:12:23 2015
0: avidemux3_qt4
Initialising prefs
[load] Loading prefs from /root/.avidemux6/config2
[load] can't read /root/.avidemux6/config2
[cpuCaps]Checking CPU capabilities
MMX detected
MMXEXT detected
SSE detected
SSE2 detected
SSE3 detected
SSSE3 detected
[cpuCaps]End of CPU capabilities check (cpuMask :ffffffff, cpuCaps :1e6)
[UI_Init] Starting QT4 GUI...
[loadTranslator] Using system language
[loadTranslator] Initializing language es_ES
[loadTranslation] [Locale] Loading language file /usr/share/avidemux6//qt4/i18n//qt_es_ES [loadTranslation] FAILED
[loadTranslation] [Locale] Loading language file /usr/share/avidemux6//qt4/i18n//avidemux_es_ES [loadTranslation] succeeded
[loadTranslator] Updating translations...
[loadTranslator] [Locale] Test: &Edit -> &Edit
Initializing Dithering tables
[COREUI] Compiled with 01.00.00
[COREUI] Linked with 01.00.00
[CoreUI] Compiled with patch version 0, using 0
[UI Toolkit] Running version 01:04
[Script] Scanning directory /usr/lib/ADM_plugins6/scriptEngines/
ignored: qt4
[Script] SpiderMonkey INFO - Registered Debug functions
[Script] SpiderMonkey INFO - Registered Test functions
[Script] SpiderMonkey INFO - Registered DialogFactory classes
[Script] SpiderMonkey INFO - Spidermonkey initialised
[Script] loaded /usr/lib/ADM_plugins6/scriptEngines/libADM_script_spiderMonkey.so
[Script] Tinypy INFO - Registering group addons
[Script] Tinypy INFO - Registering: help
[Script] Tinypy INFO - Registering: get_folder_content
[Script] Tinypy INFO - Registering: get_file_size
[Script] Tinypy INFO - Registering: basename
[Script] Tinypy INFO - Registering: dirname
[Script] Tinypy INFO - Registering class: Avidemux
[Script] Tinypy INFO - Registering class: Editor
[Script] Tinypy INFO - Registering class: Gui
[Script] Tinypy INFO - Registering class: DFToggle
[Script] Tinypy INFO - Registering class: DFInteger
[Script] Tinypy INFO - Registering class: DFMenu
[Script] Tinypy INFO - Registering class: DFTimeStamp
[Script] Tinypy INFO - Registering class: DialogFactory
[Script] Tinypy INFO - Registering group test
[Script] Tinypy INFO - Registering: testAssert
[Script] Tinypy INFO - Registering: testCrash
[Script] Tinypy INFO - Registering: testSub
[Script] Tinypy INFO - Registering static class os
[Script] Tinypy INFO - Registering: environ
[Script] Tinypy INFO - Python initialised
[Script] loaded /usr/lib/ADM_plugins6/scriptEngines/libADM_script_tinyPy.so
[Script] Scanning directory /usr/lib/ADM_plugins6/scriptEngines//qt4
[Script] QtScript INFO - Initialised
[Script] loaded /usr/lib/ADM_plugins6/scriptEngines//qt4/libadm_script_QT4.so
Directory /root/.avidemux6/custom/ exists.Good.
The screen seems to be 1920 x 1045 px
[initGUI] OpenGL enabled at built time, checking if we should run it..
[initGUI] OpenGL not activated, not initialized
Probing for VDPAU...
Failed to open VDPAU backend libvdpau_nvidia.so: no se puede abrir el fichero del objeto compartido: No existe el fichero o el directorio
VDPAU not available
Probing for LIBVA...
[init] [LIBVA] Initializing LibVA library ...
libva info: VA-API version 0.37.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/fglrx_drv_video.so
libva info: Found init function __vaDriverInit_0_33
avidemux3_qt4: symbol lookup error: /usr/lib/libAMDXvBA.so.1: undefined symbol: XF86DRIOpenConnection
wifislax ~ #