BTW, uninstalling and reinstalling glx-alternative-fglrx{a} glx-alternative-mesa{a} glx-diversions{a} libfglrx{a} libfglrx-amdxvba1 libgl1-fglrx-glx{a} nvidia-installer-cleanup{a} update-glx{a}
gives same results: glxinfo name of display: :0 Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Errore di segmentazione Xorg.0.log (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 7.838] (EE) AIGLX error: dlopen of /usr/lib/x86_64-linux-gnu/dri/i965_dri.so failed (/usr/lib/x86_64-linux-gnu/dri/i965_dri.so: undefined symbol: _glapi_tls_Dispatch) [ 7.838] (EE) AIGLX: reverting to software rendering [ 7.895] (EE) AIGLX error: dlopen of /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so failed (/usr/lib/x86_64-linux-gnu/dri/swrast_dri.so: undefined symbol: _glapi_tls_Dispatch) [ 7.895] (EE) GLX: could not load software renderer I'm lost now. Thanks. Il 04/05/2016 20:46, Sven Arvidsson ha scritto: > On Wed, 2016-05-04 at 20:33 +0200, Paolo Cavallini wrote: >>> Have you double checked that the correct glx provider is >>> configured? >> no idea how to do that, sorry: how can I? > > The blurb in the package description says "update-glx --config glx" it seems correct: # update-glx --config glx Sono disponibili 2 scelte per l'alternativa glx (che fornisce /usr/lib/glx). Selezione Percorso Priorità Stato ------------------------------------------------------------ * 0 /usr/lib/fglrx 99 modalità automatica 1 /usr/lib/fglrx 99 modalità manuale 2 /usr/lib/mesa-diverted 5 modalità manuale > Presumably you installed this package when you had another driver > installed? not voluntarily -maybe it's a dep of other packages? > I don't have it on any on my systems so I don't think it's installed by > default. so do you suggest to remove both libgl1-fglrx-glx libgl1-mesa-glx ? Thanks again. -- Paolo Cavallini - www.faunalia.eu QGIS & PostGIS courses: http://www.faunalia.eu/training.html