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No GLX Dell XPS 15 GT525M

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linux-howto

http://askubuntu.com – I have a Dell XPS 15 with the GT525M (Optimus) videocard. With a fresh Ubuntu 11.10 installation (enabling the additional nvidia drivers) GLX doesn't work. The Mesa drivers work as you can see here from a live CD boot. ubuntu@ubuntu:~$ /usr/lib/nux/unity_support_test -p OpenGL vendor string: Tungsten Graphics, Inc OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile OpenGL version string: 2.1 Mesa 7.11 Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: yes GL npot or rect textures: yes GL vertex program: yes (HowTos)