qt - Crash on using the opengl graphics system -

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i have made qt/qml application works fine in raster mode.

qapplication::setgraphicssystem("raster");

but change opengl, crashes following messages:

hijackwindow() context created qmlapplicationviewer(0xbfce6e5c) 1  qglcontext::makecurrent(): failed. qglframebufferobject: unable resolve framebuffer object extensions - make sure there current context when creating framebuffer object. qglwindowsurface: failed create valid fbo, falling  qglpixelbuffer: unable find context/format match - giving up. qglwindowsurface: failed create valid pixelbuffer, falling  qglcontext::makecurrent(): failed. qglwindowsurface: using plain widget window surface qglwindowsurface(0x932b428)  qglcontext::makecurrent(): failed. qglshader: not create shader  vertex shader simpleshaderprog (mainvertexshader & positiononlyvertexshader) failed compile qglshader: not create shader  fragment shader simpleshaderprog (mainfragmentshader & shockingpinksrcfragmentshader) failed compile qglshaderprogram: not create shader program  errors linking simple shader: ""  qglshader: not create shader  vertex shader blitshaderprog (mainwithtexcoordsvertexshader & untransformedpositionvertexshader) failed compile qglshader: not create shader  fragment shader blitshaderprog (mainfragmentshader & imagesrcfragmentshader) failed compile qglshaderprogram: not create shader program  errors linking blit shader: ""  qglcontext::makecurrent(): failed. qglshader: not create shader  warning: "" failed compile!  qglcontext::makecurrent(): failed. qglcontext::makecurrent(): failed. qglshader: not create shader  warning: "" failed compile!  qglcontext::makecurrent(): failed. qglcontext::makecurrent(): failed. qglcontext::makecurrent(): failed. qglcontext::makecurrent(): failed. program has unexpectedly finished.

platform : ubuntu 12.04 - 32 bit - intel i5 - qt 4.8

edit 1 :

i tried way around using this approach mention on . did work, got worst of performance such powerful platform !?

is there missing ? can 1 list down should ensured on platform make sure application works in opengl mode , not fall native mode.

eg. graphics card / drivers / opengl support etc ?

edit 2 :

when tried running glxinfo command, 1 of line says : direct rendering: no should worried ?

edit 3 :

i trying install drivers , noticed direct rendering: no changed yes after done.

sounds have no opengl drivers gpu installed, you're falling software rasterizer mode, sloooooow. relevant lines of glxinfo opengl renderer string , opengl version string. glx strings uninteresting, glx transport opengl commands on network, x11 protocol extensions used create opengl contexts , that's independent gpu , driver.

what's output of /usr/sbin/lspci | egrep 'vga|graphics' ?

when executing on system gpu installed in direct rendering: no warning sign, opengl drivers installation incomplete. can use opengl on remote connection well, , written programs can quite performant (not on dialup, within lan).


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