Bumblebee optirun appears to depend on Intel

Posted by user206398 on Ask Ubuntu See other posts from Ask Ubuntu or by user206398
Published on 2013-10-23T03:54:03Z Indexed on 2013/10/23 4:09 UTC
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I have a Lenovo T420 with Intel and Nvidia graphics. On upgrade to Ubuntu Saucy, I had to purge and reinstall bumblebee-nvidia to get beyond optirun failing to find a GPU driver. Now, "optirun glxgears" and "optirun sol" succeed, but optirun fails on 2 Virtual Life viewers that it supported in the past, Cool VL (CoolVLViewer-1.26.8.34-Linux-x86) and Imprudence (Imprudence 1.4.0 beta2). In both cases, the error output is huge, but it starts with

libGL error: failed to load driver: i965

and

libGL error: failed to load driver: swrast

From the little I can discover, i965 is an Intel graphics driver, which should not be invoked at all. I haven't found any information about swrast. I suspect that some of the X configuration associated with Bumblebee has some Intel dependence that is invoked on certain library calls, but not others. I haven't discovered any definite information on this line.

The Cool VL Viewer runs without optirun, but complains about the insufficiency of the Intel graphics.

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