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[Fabounet <fabounet03@xxxxxxxxx>]

interesting !
I don't know what exactly is behind gdk_x11_get_default_xdisplay(), I
thought that GTK does an XOpenDisplay somewhere and then use the resulting
display, but there is maybe more.
what if in the dock you use cairo_dock_get_Xdisplay instead of
gdk_x11_get_default_xdisplay (the dock opens a distinct connection to X for
the taskbar, and uses the GTK one for the drawings) ?

2011/2/5 Benjamin <712052@xxxxxxxxxxxxxxxxxx>

> Sorry, it's me again. But the problem that cairo-dock cannot use OpenGL
> (output of cairo-dock below) doesn't let me be. So, i took the relevant
> code from cairo-dock-opengl.c (revision 678)and wrote a little test
> program. The only difference is using XOpenDisplay(NULL) instead of
> gdk_x11_get_default_xdisplay() since the latter one always caused a
> segfault (don't know why). And, tata, I've gotten the expected result
> (as expected with respect to glxinfo's output):
>
>  this time got 8 FBConfig(s)
>  Strike, found a GLX visual with alpha-support!
>
> Any ideas?
>
> greetz
> Benjamin
>
> warning :
>
> (/build/buildd/cairo-dock-2.3.0~0beta1~20110131/src/gldit/cairo-dock-opengl.c:cairo_dock_initialize_opengl_backend:171)
>
>  couldn't find an appropriate visual, trying to get one without Stencil
> buffer
> (it may cause some little deterioration in the rendering) ...
> warning :
>
> (/build/buildd/cairo-dock-2.3.0~0beta1~20110131/src/gldit/cairo-dock-opengl.c:cairo_dock_initialize_opengl_backend:189)
>
>  still couldn't find an appropriate visual ourself, trying something
> else, this may not work with some drivers ...
> warning :
>
> (/build/buildd/cairo-dock-2.3.0~0beta1~20110131/src/gldit/cairo-dock-opengl.c:cairo_dock_initialize_opengl_backend:200)
>
>  no luck, trying without double-buffer and stencil ...
> warning :
>
> (/build/buildd/cairo-dock-2.3.0~0beta1~20110131/src/gldit/cairo-dock-opengl.c:cairo_dock_initialize_opengl_backend:212)
>
>  we could not get an ARGB-visual, trying to get an RGB one (fake
> transparency will be used in return) ...
> warning :
>
> (/build/buildd/cairo-dock-2.3.0~0beta1~20110131/src/gldit/cairo-dock-opengl.c:cairo_dock_initialize_opengl_backend:240)
>
>  still no visual, this is the last chance
> warning :
>
> (/build/buildd/cairo-dock-2.3.0~0beta1~20110131/src/gldit/cairo-dock-opengl.c:cairo_dock_initialize_opengl_backend:252)
>
>  couldn't find a suitable GLX Visual, OpenGL can't be used.
>  (sorry to say that, but your graphic card and/or its driver is crappy)
>
> --
> You received this bug notification because you are a member of Cairo-
> Dock Team, which is subscribed to Cairo-Dock Core.
> https://bugs.launchpad.net/bugs/712052
>
> Title:
>  Wrong element set to None of array doubleBufferAttributes?
>
> Status in Cairo-Dock : Core:
>  Invalid
>
> Bug description:
>  cairo-dock states that I can't use OpenGL. Curios, since glxinfo says
>  I have (Intel Ironlake). After some investigation I found a peace of
>  code in cairo-dock-opengl.c (line 173) where
>  doubleBufferAttributes[16] is set to None (old value is
>  GLX_STENCIL_SIZE). After taking a look at this array, i think it must
>  be index 17, since all even indexes are attributes and all odd are the
>  expected values, aren't they? However, that would not solve my
>  problems since GL_MULTISAMPLESAMPLES is expected to be 2 and glxinfo
>  says that may graphics card don't support MS at all (if column MS
>  num/ms ns of glxinfo's output is the correct one).
>
>
>
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-- 
You received this bug notification because you are a member of Cairo-
Dock Team, which is subscribed to Cairo-Dock Core.
https://bugs.launchpad.net/bugs/712052

Title:
  Wrong element set to None of array doubleBufferAttributes?

Status in Cairo-Dock : Core:
  Invalid

Bug description:
  cairo-dock states that I can't use OpenGL. Curios, since glxinfo says
  I have (Intel Ironlake). After some investigation I found a peace of
  code in cairo-dock-opengl.c (line 173) where
  doubleBufferAttributes[16] is set to None (old value is
  GLX_STENCIL_SIZE). After taking a look at this array, i think it must
  be index 17, since all even indexes are attributes and all odd are the
  expected values, aren't they? However, that would not solve my
  problems since GL_MULTISAMPLESAMPLES is expected to be 2 and glxinfo
  says that may graphics card don't support MS at all (if column MS
  num/ms ns of glxinfo's output is the correct one).