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-bash-4.2# uname -s -r
Linux 3.3.2-6.fc16.i686.PAE

-bash-4.2# yum list installed '*mesa*'

Installed Packages
mesa-demos.i686                                                 7.10-5.20101028.fc16                                        @fedora 
mesa-dri-drivers.i686                                           7.11.2-3.fc16                                               @updates
mesa-dri-filesystem.i686                                        7.11.2-3.fc16                                               @updates
mesa-libEGL.i686                                                7.11.2-3.fc16                                               @updates
mesa-libEGL-devel.i686                                          7.11.2-3.fc16                                               @updates
mesa-libGL.i686                                                 7.11.2-3.fc16                                               @updates
mesa-libGL-devel.i686                                           7.11.2-3.fc16                                               @updates
mesa-libGLES.i686                                               7.11.2-3.fc16                                               @updates
mesa-libGLES-devel.i686                                         7.11.2-3.fc16                                               @updates
mesa-libGLU.i686                                                7.11.2-3.fc16                                               @updates
mesa-libGLU-devel.i686                                          7.11.2-3.fc16                                               @updates
-bash-4.2#

Checking the Mesa installation:

# ls -l /usr/lib/libGL* /usr/lib/dri/
lrwxrwxrwx  1 root root     17 Apr 30 23:10 /usr/lib/libGLESv1_CM.so -> libGLESv1_CM.so.1
lrwxrwxrwx  1 root root     21 Apr 30 23:10 /usr/lib/libGLESv1_CM.so.1 -> libGLESv1_CM.so.1.1.0
-rwxr-xr-x  1 root root  42224 Feb 13 13:47 /usr/lib/libGLESv1_CM.so.1.1.0
lrwxrwxrwx  1 root root     14 Apr 30 23:10 /usr/lib/libGLESv2.so -> libGLESv2.so.2
lrwxrwxrwx  1 root root     18 Apr 30 23:10 /usr/lib/libGLESv2.so.2 -> libGLESv2.so.2.0.0
-rwxr-xr-x  1 root root  29936 Feb 13 13:47 /usr/lib/libGLESv2.so.2.0.0
lrwxrwxrwx. 1 root root     16 Mar 18 16:12 /usr/lib/libGLEW.so.1.6 -> libGLEW.so.1.6.0
-rwxr-xr-x  1 root root 353652 Jun 20  2011 /usr/lib/libGLEW.so.1.6.0
lrwxrwxrwx  1 root root     10 Mar 25 14:08 /usr/lib/libGL.so -> libGL.so.1
lrwxrwxrwx. 1 root root     12 Mar 18 16:12 /usr/lib/libGL.so.1 -> libGL.so.1.2
-rwxr-xr-x  1 root root 554568 Feb 13 13:47 /usr/lib/libGL.so.1.2
lrwxrwxrwx  1 root root     11 Mar 25 14:08 /usr/lib/libGLU.so -> libGLU.so.1
lrwxrwxrwx. 1 root root     20 Mar 18 16:12 /usr/lib/libGLU.so.1 -> libGLU.so.1.3.071100
-rwxr-xr-x  1 root root 480324 Feb 13 13:47 /usr/lib/libGLU.so.1.3.071100

/usr/lib/dri/:
total 34976
-rwxr-xr-x  1 root root   17748 Jan  4 16:36 dummy_drv_video.so
-rwxr-xr-x. 1 root root 3804896 Feb 13 13:47 i915_dri.so
-rwxr-xr-x. 1 root root 4083136 Feb 13 13:47 i965_dri.so
-rwxr-xr-x. 1 root root 4379488 Feb 13 13:47 nouveau_dri.so
-rwxr-xr-x. 1 root root 3538536 Feb 13 13:47 nouveau_vieux_dri.so
-rwxr-xr-x. 1 root root 3785664 Feb 13 13:47 r200_dri.so
-rwxr-xr-x. 1 root root 4173312 Feb 13 13:47 r300_dri.so
-rwxr-xr-x. 1 root root 4077116 Feb 13 13:47 r600_dri.so
-rwxr-xr-x. 1 root root 3754784 Feb 13 13:47 radeon_dri.so
-rwxr-xr-x. 1 root root 4184672 Feb 13 13:47 swrast_dri.so


Mesa was built with DRI/accelerated hardware support.

Attaching glxinfo output.

.

Created attachment 858 [details]
glxinfo output

$ glxinfo | grep vendor
server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
OpenGL vendor string: nouveau

Should the 'nouveau' driver be added in SDL_video.c?

$ hg diff src/video/SDL_video.c
---------------------------------------------------------------
diff -r 601b0e251822 src/video/SDL_video.c
--- a/src/video/SDL_video.c	Mon Apr 09 23:55:43 2012 -0400
+++ b/src/video/SDL_video.c	Mon May 14 15:24:33 2012 -0400
@@ -184,8 +184,11 @@
                 }
                 /* Add more vendors here at will... */
                 if (vendor &&
-                    (SDL_strstr(vendor, "ATI Technologies") ||
-                     SDL_strstr(vendor, "NVIDIA"))) {
+                    (
+                       SDL_strstr(vendor, "ATI Technologies")
+                    || SDL_strstr(vendor, "NVIDIA")
+                    || SDL_strstr(vendor, "nouveau")
+                    )) {
                     hasAcceleratedOpenGL = SDL_TRUE;
                 }
                 SDL_GL_DeleteContext(context);
---------------------------------------------------------------

It didn't make any difference.  Still cannot create an OpenGL window w/Mesa.

.

I took a minute and tried to trace what is happening when we try to render using opengl under Mesa.

-----------------------------------------------------------------
==3752== Command: ./testdraw2 --renderer opengl
==3752== 
SDL_CreateWindow called
==3752== Syscall param ioctl(generic) points to uninitialised byte(s)
==3752==    at 0x4CEE7829: ioctl (in /lib/libc-2.14.90.so)
==3752==    by 0x42377A63: drmIoctl (in /usr/lib/libdrm.so.2.4.0)
==3752==    by 0x4237A44C: drmCommandWriteRead (in /usr/lib/libdrm.so.2.4.0)
==3752==    by 0x49B63C3: nouveau_device_get_param (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x49B64AE: nouveau_device_open_existing (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x455882C: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x42380FF3: ??? (in /usr/lib/libdrm.so.2.4.0)
==3752==  Address 0xbeb507b8 is on thread 1's stack
==3752==  Uninitialised value was created by a stack allocation
==3752==    at 0x49B637D: nouveau_device_get_param (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752== 
==3752== Syscall param ioctl(generic) points to uninitialised byte(s)
==3752==    at 0x4CEE7829: ioctl (in /lib/libc-2.14.90.so)
==3752==    by 0x42377A63: drmIoctl (in /usr/lib/libdrm.so.2.4.0)
==3752==    by 0x4237A44C: drmCommandWriteRead (in /usr/lib/libdrm.so.2.4.0)
==3752==    by 0x49B8079: nouveau_bo_wrap (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x49B69A9: nouveau_channel_alloc (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x45D6F0D: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x4565CF4: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x45588DE: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x42380FF3: ??? (in /usr/lib/libdrm.so.2.4.0)
==3752==  Address 0xbeb506cc is on thread 1's stack
==3752==  Uninitialised value was created by a stack allocation
==3752==    at 0x49B7FE0: nouveau_bo_wrap (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752== 
==3752== Syscall param ioctl(generic) points to uninitialised byte(s)
==3752==    at 0x4CEE7829: ioctl (in /lib/libc-2.14.90.so)
==3752==    by 0x42377A63: drmIoctl (in /usr/lib/libdrm.so.2.4.0)
==3752==    by 0x4237A44C: drmCommandWriteRead (in /usr/lib/libdrm.so.2.4.0)
==3752==    by 0x49B6CC9: nouveau_pushbuf_init (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x49B6A4C: nouveau_channel_alloc (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x45D6F0D: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x4565CF4: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x45588DE: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x42380FF3: ??? (in /usr/lib/libdrm.so.2.4.0)
==3752==  Address 0xbeb506b4 is on thread 1's stack
==3752==  Uninitialised value was created by a stack allocation
==3752==    at 0x49B6C7F: nouveau_pushbuf_init (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752== 
==3752== Syscall param ioctl(generic) points to uninitialised byte(s)
==3752==    at 0x4CEE7829: ioctl (in /lib/libc-2.14.90.so)
==3752==    by 0x42377A63: drmIoctl (in /usr/lib/libdrm.so.2.4.0)
==3752==    by 0x4237A44C: drmCommandWriteRead (in /usr/lib/libdrm.so.2.4.0)
==3752==    by 0x49B7AAD: ??? (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x49B7EDE: nouveau_bo_new_tile (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x49B7F5B: nouveau_bo_new (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x49B6D1A: nouveau_pushbuf_init (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x49B6A4C: nouveau_channel_alloc (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752==    by 0x45D6F0D: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x4565CF4: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x45588DE: ??? (in /usr/lib/dri/nouveau_dri.so)
==3752==    by 0x42380FF3: ??? (in /usr/lib/libdrm.so.2.4.0)
==3752==  Address 0xbeb505c0 is on thread 1's stack
==3752==  Uninitialised value was created by a stack allocation
==3752==    at 0x49B79FF: ??? (in /usr/lib/libdrm_nouveau.so.1.0.0)
==3752== 
SDL_CreateWindow called
==3752== Syscall param writev(vector[...]) points to uninitialised byte(s)
==3752==    at 0x4CEE794E: writev (in /lib/libc-2.14.90.so)
==3752==    by 0x40D200D: X11_GL_GetVisual (SDL_x11opengl.c:427)
==3752==    by 0x40CB4C3: XCreateWindow (SDL_x11sym.h:37)
==3752==    by 0x40D4EFF: X11_CreateWindow (SDL_x11window.c:480)
==3752==    by 0x40C7255: SDL_CreateWindow (SDL_video.c:1204)
==3752==    by 0x804B7E5: CommonInit (common.c:730)
==3752==    by 0x80497F3: main (testdraw2.c:228)
==3752==  Address 0x4173bb3 is 35 bytes inside a block of size 16,384 alloc'd
==3752==    at 0x4006467: calloc (vg_replace_malloc.c:467)
==3752==    by 0x41C1B971: XOpenDisplay (in /usr/lib/libX11.so.6.3.0)
==3752==    by 0x40CBDFB: XOpenDisplay (SDL_x11sym.h:77)
==3752==    by 0x40D3EFF: X11_CreateDevice (SDL_x11video.c:162)
==3752==    by 0x40C6FA6: SDL_VideoInit (SDL_video.c:457)
==3752==    by 0x804B531: CommonInit (common.c:583)
==3752==    by 0x4CE156B2: (below main) (in /lib/libc-2.14.90.so)
==3752==  Uninitialised value was created by a stack allocation
==3752==    at 0x41C27A1F: XStoreColors (in /usr/lib/libX11.so.6.3.0)
==3752== 
==3752== Syscall param writev(vector[...]) points to uninitialised byte(s)
==3752==    at 0x4CEE794E: writev (in /lib/libc-2.14.90.so)
==3752==  Address 0x4173bd7 is 71 bytes inside a block of size 16,384 alloc'd
==3752==    at 0x4006467: calloc (vg_replace_malloc.c:467)
==3752==    by 0x41C1B971: XOpenDisplay (in /usr/lib/libX11.so.6.3.0)
==3752==    by 0x40CBDFB: XOpenDisplay (SDL_x11sym.h:77)
==3752==    by 0x40D3EFF: X11_CreateDevice (SDL_x11video.c:162)
==3752==    by 0x40C6FA6: SDL_VideoInit (SDL_video.c:457)
==3752==    by 0x804B531: CommonInit (common.c:583)
==3752==    by 0x4CE156B2: (below main) (in /lib/libc-2.14.90.so)
==3752==  Uninitialised value was created by a stack allocation
==3752==    at 0x41C27A1F: XStoreColors (in /usr/lib/libX11.so.6.3.0)
==3752== 
==3752== Syscall param writev(vector[...]) points to uninitialised byte(s)
==3752==    at 0x4CEE794E: writev (in /lib/libc-2.14.90.so)
==3752==    by 0x4222B9F: ???
==3752==  Address 0x4173bd7 is 71 bytes inside a block of size 16,384 alloc'd
==3752==    at 0x4006467: calloc (vg_replace_malloc.c:467)
==3752==    by 0x41C1B971: XOpenDisplay (in /usr/lib/libX11.so.6.3.0)
==3752==    by 0x40CBDFB: XOpenDisplay (SDL_x11sym.h:77)
==3752==    by 0x40D3EFF: X11_CreateDevice (SDL_x11video.c:162)
==3752==    by 0x40C6FA6: SDL_VideoInit (SDL_video.c:457)
==3752==    by 0x804B531: CommonInit (common.c:583)
==3752==    by 0x4CE156B2: (below main) (in /lib/libc-2.14.90.so)
==3752==  Uninitialised value was created by a stack allocation
==3752==    at 0x41C27A1F: XStoreColors (in /usr/lib/libX11.so.6.3.0)
==3752== 
==3752== Syscall param writev(vector[...]) points to uninitialised byte(s)
==3752==    at 0x4CEE794E: writev (in /lib/libc-2.14.90.so)
==3752==    by 0x5: ???
==3752==  Address 0x4173bb3 is 35 bytes inside a block of size 16,384 alloc'd
==3752==    at 0x4006467: calloc (vg_replace_malloc.c:467)
==3752==    by 0x41C1B971: XOpenDisplay (in /usr/lib/libX11.so.6.3.0)
==3752==    by 0x40CBDFB: XOpenDisplay (SDL_x11sym.h:77)
==3752==    by 0x40D3EFF: X11_CreateDevice (SDL_x11video.c:162)
==3752==    by 0x40C6FA6: SDL_VideoInit (SDL_video.c:457)
==3752==    by 0x804B531: CommonInit (common.c:583)
==3752==    by 0x4CE156B2: (below main) (in /lib/libc-2.14.90.so)
==3752==  Uninitialised value was created by a stack allocation
==3752==    at 0x41C27A1F: XStoreColors (in /usr/lib/libX11.so.6.3.0)
==3752== 
==3752== Syscall param writev(vector[...]) points to uninitialised byte(s)
==3752==    at 0x4CEE794E: writev (in /lib/libc-2.14.90.so)
==3752==    by 0x422739F: ???
==3752==  Address 0x4173bd7 is 71 bytes inside a block of size 16,384 alloc'd
==3752==    at 0x4006467: calloc (vg_replace_malloc.c:467)
==3752==    by 0x41C1B971: XOpenDisplay (in /usr/lib/libX11.so.6.3.0)
==3752==    by 0x40CBDFB: XOpenDisplay (SDL_x11sym.h:77)
==3752==    by 0x40D3EFF: X11_CreateDevice (SDL_x11video.c:162)
==3752==    by 0x40C6FA6: SDL_VideoInit (SDL_video.c:457)
==3752==    by 0x804B531: CommonInit (common.c:583)
==3752==    by 0x4CE156B2: (below main) (in /lib/libc-2.14.90.so)
==3752==  Uninitialised value was created by a stack allocation
==3752==    at 0x41C27A1F: XStoreColors (in /usr/lib/libX11.so.6.3.0)
==3752== 
Couldn't create renderer: 
==3752== 
==3752== HEAP SUMMARY:
==3752==     in use at exit: 233,606 bytes in 831 blocks
==3752==   total heap usage: 6,147 allocs, 5,316 frees, 670,782 bytes allocated
==3752== 
==3752== LEAK SUMMARY:
==3752==    definitely lost: 420 bytes in 7 blocks
==3752==    indirectly lost: 101,255 bytes in 147 blocks
==3752==      possibly lost: 0 bytes in 0 blocks
==3752==    still reachable: 131,931 bytes in 677 blocks
==3752==         suppressed: 0 bytes in 0 blocks
==3752== Rerun with --leak-check=full to see details of leaked memory
==3752== 
==3752== For counts of detected and suppressed errors, rerun with: -v
==3752== ERROR SUMMARY: 16 errors from 9 contexts (suppressed: 0 from 0)
-----------------------------------------------------------------

And it looks like SDL keeps calling the same code over and over until it fails. 

.

Looking at this some more...

It looks like it is complaining about uninitialized structures.

Looking through some of the code I can see where structures are allocated with calloc but that doesn't really initialize the structure.

(In reply to comment #6)
> Looking at this some more...
> 
> It looks like it is complaining about uninitialized structures.
> 
> Looking through some of the code I can see where structures are allocated with
> calloc but that doesn't really initialize the structure.

(In reply to comment #0)
> On a linux machine with Mesa 7.11 installed I just did a fresh checkout of
> SDL-2.0 from HG.
> 
> Ran autogen.sh, configure, and make, sudo make install
> 
> I go into tests and do the same.
> 
> When I try to run the tests I'm getting this:
> 
> $ ./testgles
> Couldn't create window:
> 
> 
> 
> So just for a quick check I fire up glx gears and it runs fine.
> 
> 
> I go and check some of my other gles programs and they're getting the same
> error. 
> 
> 
> Ran some tests:
> 
> Installed the mesa-demos and they all run ok.
> 
> 
> So then I tried one of the SDL tests and specifically requested various
> renderers:
> 
> 
> $ LD_PRELOAD=/usr/lib/libGLESv2.so ./testdraw2 --renderer software
> 156.54 frames per second
> $ LD_PRELOAD=/usr/lib/libGLESv2.so ./testdraw2 --renderer opengl
> Couldn't create renderer:
> $ LD_PRELOAD=/usr/lib/libGLESv2.so ./testdraw2 --renderer opengles
> Couldn't create renderer:
> $ LD_PRELOAD=/usr/lib/libGLESv2.so ./testdraw2 --renderer opengles2
> Couldn't create renderer:
> 
> 
> So then I check glxinfo to make sure that the driver wasn't the software
> rasterizer:
> 
> $ glxinfo | grep -i renderer
> OpenGL renderer string: Gallium 0.4 on NV36
> 
> 
> SDL-2.0 cannot create an OpenGL renderer on Linux using Mesa.
> 
> .

same problem here

Is this still a problem?  If so, can you post the ./configure output?

(In reply to Alex Barry from comment #8)
> Is this still a problem?  If so, can you post the ./configure output?

This was reported 15 months before we finalized 2.0.0, so I wouldn't be surprised if this was broken then and isn't now. We'd definitely have heard a lot more about it from all the Steam users.  :)

Closing this bug; feel free to reopen if this is still giving you trouble, though!

--ryan.