Como corrigir: Unity não funciona de todo (atualizações, atualização, drivers, OpenGL)?

Question

Recentemente, fiquei com Unity , já que não funciona - não vejo system bar nem Unity launcher (3D / 2D). As possíveis causas são: system update/upgrade ou jogar com drivers (% adicionalfglrx ou baixado do site da AMD). Gostaria de apontar no recente system update desde que eu vi lá OpenGL -algo.

EDITAR

Como reanimamos o Unity:

FIRST reading askubuntu and Google answers
- reinstalled Unity,
- changed drivers,
THEN reading unity --reset
- fixed broken links to libGL.so and added few more,
THEN reading answers
- enabled Unity in ccsm
THEN reading unity --reset
- added libatiuki.so links to /lib32 and /lib (was only in /lib64).

Agora funciona, mas unity --reset (abaixo) conta outra história.

Eu ficaria feliz em saber como corrigir esses erros :

WARNING: Unity currently default profile, so switching to metacity while resetting the values
Checking if settings need to be migrated ...no
Checking if internal files need to be migrated ...no
Backend     : gconf
Integration : true
Profile     : unity
Adding plugins
Initializing core options...done
compiz (core) - Warn: failed to receive ConfigureNotify event on 0x2400004

compiz (core) - Warn: failed to receive ConfigureNotify event on 0x1400002

compiz (core) - Warn: failed to receive ConfigureNotify event on 0x1600002

compiz (core) - Warn: failed to receive ConfigureNotify event on 0x40000dd

Initializing composite options...done
Initializing opengl options...done
Initializing decor options...done
Initializing vpswitch options...done
Initializing snap options...done
Initializing mousepoll options...done
Initializing resize options...done
Initializing place options...done
Initializing move options...done
Initializing wall options...done
Initializing grid options...done
Initializing session options...done
Initializing gnomecompat options...done
Initializing animation options...done
Initializing fade options...done
Initializing unitymtgrabhandles options...done
Initializing workarounds options...done
Initializing scale options...done
compiz (expo) - Warn: failed to bind image to texture
Initializing expo options...done
Initializing ezoom options...done

(compiz:5391): GConf-CRITICAL **: gconf_client_add_dir: assertion 'gconf_valid_key (dirname, NULL)' failed
error subscribing to gestures
WARN  2014-01-04 16:14:47 unity.favorites FavoriteStoreGSettings.cpp:139 Unable to load GDesktopAppInfo for 'ubiquity-gtkui.desktop'
compiz (unityshell) - Error: GL_ARB_vertex_buffer_object not supported

X Error of failed request:  BadAccess (attempt to access private resource denied)
  Major opcode of failed request:  33 (X_GrabKey)
  Serial number of failed request:  6214
  Current serial number in output stream:  6460

    

Answer 1

Trabalhei para mim (barra de sistema Unity fixa e lançador):

Reinstall all already installed packages in Synaptic related to searches libgl and glx.

Pode ser necessário primeiro:

sudo apt-get purge fglrx fglrx-amdcccle    # or another fglrxs

Mas os drivers FGLRX não se sentem mais bem no meu computador, então adeus FGLRX :(. Não faço ideia do porquê.