-su-4.1# glxinfo -v
name of display: :0

2 GLX Visuals
Visual ID: 21  depth=24  class=TrueColor, type=window
    bufferSize=32 level=0 renderType=rgba doubleBuffer=1 stereo=0
    rgba: redSize=8 greenSize=8 blueSize=8 alphaSize=8 float=N sRGB=N
    auxBuffers=0 depthSize=24 stencilSize=8
    accum: redSize=0 greenSize=0 blueSize=0 alphaSize=0
    multiSample=0  multiSampleBuffers=0
    visualCaveat=None
    Opaque.
Visual ID: 55  depth=32  class=TrueColor, type=window
    bufferSize=32 level=0 renderType=rgba doubleBuffer=1 stereo=0
    rgba: redSize=8 greenSize=8 blueSize=8 alphaSize=8 float=N sRGB=N
    auxBuffers=0 depthSize=0 stencilSize=0
    accum: redSize=0 greenSize=0 blueSize=0 alphaSize=0
    multiSample=0  multiSampleBuffers=0
    visualCaveat=None
    Opaque.

3 GLXFBConfigs:
FBConfig ID: 0  Visual ID=0  depth=24  class=TrueColor, type=window
    bufferSize=32 level=0 renderType=rgba doubleBuffer=1 stereo=0
    rgba: redSize=8 greenSize=8 blueSize=8 alphaSize=8 float=N sRGB=N
    auxBuffers=0 depthSize=0 stencilSize=0
    accum: redSize=0 greenSize=0 blueSize=0 alphaSize=0
    multiSample=0  multiSampleBuffers=0
    visualCaveat=None
    Opaque.
FBConfig ID: 0  Visual ID=ffffffff  depth=24  class=TrueColor, type=window
    bufferSize=32 level=0 renderType=rgba doubleBuffer=1 stereo=0
    rgba: redSize=8 greenSize=8 blueSize=8 alphaSize=8 float=N sRGB=N
    auxBuffers=0 depthSize=24 stencilSize=0
    accum: redSize=0 greenSize=0 blueSize=0 alphaSize=0
    multiSample=0  multiSampleBuffers=0
    visualCaveat=None
    Opaque.
FBConfig ID: 0  Visual ID=fffffffe  depth=24  class=TrueColor, type=window
    bufferSize=32 level=0 renderType=rgba doubleBuffer=1 stereo=0
    rgba: redSize=8 greenSize=8 blueSize=8 alphaSize=8 float=N sRGB=N
    auxBuffers=0 depthSize=24 stencilSize=8
    accum: redSize=0 greenSize=0 blueSize=0 alphaSize=0
    multiSample=0  multiSampleBuffers=0
    visualCaveat=None
    Opaque.