Ubuntu – Problems with libGl, fbConfigs, swrast through each update

driversnvidiaopenglupdates

I have problems when compile SFML-project(don't see any graphic):

libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast

This error can be solved by simple reinstalling nvidia-drivers through this tutorial: https://askubuntu.com/a/451248/341889

..but when i get new updates – this error is returning ;( What should I do? It's not the solution – not use system's update…

P.S. and yes, i saved all changes after installing nvidia-drivers

Best Answer

The swrast thing is the software renderer. That means it's not finding the hardware driver for your graphics card. There are a bunch of libGL libraries installed and a bunch of of symbolic links to those libraries. To see these run this from the shell:

find /usr -iname "*libGL.so*" -exec ls -l -- {} +

Now the probable cause of your problem is that installing graphics drivers sometimes break these symbolic links. (Specifically /usr/local/lib/libGL.so.1.2.0 is likely to be either the wrong lib or a sym link to the wrong link) (N.B. I wrote this a while ago. libGL.so.1.2.0 was the current gl version it may be something else now).

To work out what library the OpenGL programs are trying to run you can turn on a bit of verbosity and run a simple OpenGL program. You can verify this using the standard OpenGL test program:

LIBGL_DEBUG=verbose glxgears

Hopefully that will fail in the same way as SFML. With LIBGL_DEBUG it should tell you what OpenGL library it's trying to load. Furthermore the lib it will be trying to load will almost certainly be /usr/local/lib/libGL.so.1.2.0 (Edit: This was the standard OpenGL library on my machine at the time I answered this. It may well be some other version on your machine now).

So the solution (in this case) is to make sure that /usr/local/lib/libGL.so.1.2.0 is a symbolic link pointing at the right OpenGL library. In my case I have the Nvidia 3.40 driver so I ran:

ln -s /usr/lib/nvidia-340/libGL.so.1 /usr/local/lib/libGL.so.1.2.0

But you'll want to point it at the OpenGL lib that is appropriate for you (listed in the first find command).

In summary: installing (proprietary) graphics drivers can break the symbolic links used for OpenGL libs. To solve this problem manually fix the symbolic links (fix /usr/local/lib/libGL.so.1.2.0 first).

Related Solutions

Ubuntu – Steam not working with open source drivers

This problem is caused by the Steam's old bundled version of libstdc++.

Possible solutions:

(from https://github.com/ValveSoftware/steam-for-linux/issues/3273) Redirect steam runtime's symlink for libstdc++.so.6 to the systems. Replace XX with the version of your system's libstdc++. You need to update this when libstdc++ is updated.
```
$ ln -sf /usr/lib/libstdc++.so.6.0.XX ~/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libstdc++.so.6
```

(from http://chapeaulinux.org/forums/topic/steam-not-working-in-chapeau-22/) Preload the system's libstdc++ before running steam.

$ LD_PRELOAD=/usr/lib/libstdc++.so.6 ; steam

The last solution can also be put in a script:

sudo mv /usr/bin/steam /usr/bin/steam.orig
echo -e '#!/bin/sh\nexport LD_PRELOAD=/usr/lib/libstdc++.so.6\n. /usr/bin/steam.orig $*'>~/mysteam
chmod +x ~/mysteam
sudo ln -s ~/mysteam /usr/bin/steam

(from search for how-to-fix-broken-steam-linux-client-with-radeon-graphics-driver-workaround/) Create a script to run steam with the system's version of libstdc++.
```
#!/bin/bash
export LD_PRELOAD='/usr/$LIB/libstdc++.so.6' #Export so all child    processes are affected as well
export DISPLAY=:0
#export LIBGL_DEBUG=verbose
steam
```
Save this as e.g. run-steam.sh. You must start steam through this script.

Ubuntu – Steam: libGL error: No matching fbConfigs or visuals found libGL error: failed to load driver: swrast

Ubuntu 16.04+ For anyone still getting same error, if you are using nvidia driver, sometimes you will see that libGL.so.1 points to ambiguous libGL provided by both mesa and nvidia. To test this, you can run this command

$ sudo ldconfig -p | grep -i gl.so

The output was something like:

    libwayland-egl.so.1 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libwayland-egl.so.1
    libftgl.so.2 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libftgl.so.2
    libcogl.so.20 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libcogl.so.20
    libQt5OpenGL.so.5 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libQt5OpenGL.so.5
    libQtOpenGL.so.4 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libQtOpenGL.so.4
    libQtOpenGL.so.4 (libc6) => /usr/lib/i386-linux-gnu/libQtOpenGL.so.4
    libOpenGL.so.0 (libc6,x86-64) => /usr/lib/nvidia-378/libOpenGL.so.0
    libOpenGL.so (libc6,x86-64) => /usr/lib/nvidia-378/libOpenGL.so
    libGL.so.1 (libc6,x86-64) => /usr/lib/nvidia-378/libGL.so.1
    libGL.so.1 (libc6) => /usr/lib/i386-linux-gnu/mesa/libGL.so.1
    libGL.so.1 (libc6) => /usr/lib32/nvidia-378/libGL.so.1
    libGL.so (libc6,x86-64) => /usr/lib/nvidia-378/libGL.so
    libGL.so (libc6) => /usr/lib32/nvidia-378/libGL.so
    libEGL.so.1 (libc6,x86-64) => /usr/lib/nvidia-378/libEGL.so.1
    libEGL.so.1 (libc6) => /usr/lib32/nvidia-378/libEGL.so.1
    libEGL.so (libc6,x86-64) => /usr/lib/nvidia-378/libEGL.so
    libEGL.so (libc6) => /usr/lib32/nvidia-378/libEGL.so

Now I just needed to remove the library provided by mesa and everything worked perfectly.

$ sudo rm /usr/lib/i386-linux-gnu/mesa/libGL.so.1

Update: This issue no longer exists from Ubuntu 18.04 LTS.

Best Answer

Related Solutions

Ubuntu – Steam not working with open source drivers

Ubuntu – Steam: libGL error: No matching fbConfigs or visuals found libGL error: failed to load driver: swrast

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