Thread: Unity dead. Can't revive.

i rebooted ubuntu , unity gone desktop icons. reinstalled compiz icons came back, still no unity. when try start get::~$ unity
compiz (core) - info: loading plugin: core
compiz (core) - info: starting plugin: core
unity-panel-service: no process found
compiz (core) - info: loading plugin: ccp
compiz (core) - info: starting plugin: ccp
compizconfig - info: backend : gsettings
compizconfig - info: integration : true
compizconfig - info: profile : unity
compiz (core) - info: loading plugin: composite
compiz (core) - info: starting plugin: composite
compiz (core) - info: loading plugin: opengl
libgl error: failed load driver: swrast
libgl error: try again libgl_debug=verbose more details.
compiz (core) - info: unity not supported hardware. enabling software rendering instead (slow).
compiz (core) - info: starting plugin: opengl
libgl error: failed load driver: swrast
libgl error: try again libgl_debug=verbose more details.
compiz (core) - info: loading plugin: compiztoolbox
compiz (core) - info: starting plugin: compiztoolbox
compiz (core) - info: loading plugin: decor
compiz (core) - info: starting plugin: decor
compiz (core) - info: loading plugin: resize
compiz (core) - info: starting plugin: resize
compiz (core) - info: loading plugin: imgpng
compiz (core) - info: starting plugin: imgpng
compiz (core) - info: loading plugin: place
compiz (core) - info: starting plugin: place
compiz (core) - info: loading plugin: mousepoll
compiz (core) - info: starting plugin: mousepoll
compiz (core) - info: loading plugin: gnomecompat
compiz (core) - info: starting plugin: gnomecompat
compiz (core) - info: loading plugin: session
compiz (core) - info: starting plugin: session
compiz (core) - info: loading plugin: regex
compiz (core) - info: starting plugin: regex
compiz (core) - info: loading plugin: grid
compiz (core) - info: starting plugin: grid
compiz (core) - info: loading plugin: vpswitch
compiz (core) - info: starting plugin: vpswitch
compiz (core) - info: loading plugin: widget
compiz (core) - info: starting plugin: widget
compiz (core) - info: loading plugin: move
compiz (core) - info: starting plugin: move
compiz (core) - info: loading plugin: wall
compiz (core) - info: starting plugin: wall
compiz (core) - info: loading plugin: unitymtgrabhandles
compiz (core) - info: starting plugin: unitymtgrabhandles
compiz (core) - info: loading plugin: animation
compiz (core) - info: starting plugin: animation
compiz (core) - info: loading plugin: wobbly
compiz (core) - info: starting plugin: wobbly
compiz (core) - info: loading plugin: workarounds
compiz (core) - info: starting plugin: workarounds
compiz (core) - info: loading plugin: fade
compiz (core) - info: starting plugin: fade
compiz (core) - info: loading plugin: scale
compiz (core) - info: starting plugin: scale
compiz (core) - info: loading plugin: expo
compiz (core) - info: starting plugin: expo
compiz (expo) - warn: failed bind image texture
compiz (core) - info: loading plugin: ezoom
compiz (core) - info: starting plugin: ezoom
compiz (core) - info: loading plugin: unityshell
compiz (core) - info: starting plugin: unityshell
compiz (unityshell) - error: gl_arb_vertex_buffer_object not supported

compiz (core) - error: plugin initscreen failed: unityshell
compiz (core) - error: failed start plugin: unityshell
compiz (core) - info: unloading plugin: unityshell
x error of failed request: badwindow (invalid window parameter)
major opcode of failed request: 3 (x_getwindowattributes)
resource id in failed request: 0x300016e
serial number of failed request: 9225
current serial number in output stream: 9226

solutions?

have used unity before? part of wall of text says "compiz (core) - info: unity not supported hardware. enabling software rendering instead (slow)."

installing alternative desktop environment while doing day-to-day stuff, while sort out? (e.g.

code:

 sudo apt-get install xfce4

)

secondly, did enable lot of plugins in compizconfig settings manager? incompatible each other, causes problems, why settings manager not installed default.
can restore unity default settings opening command prompt alt+f2 , typing:

code:

unity --reset

.
if want have go refreshing unity see if can started again before giving up, can try refreshing alt+f2 ,

code:

unity --replace

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