[ubuntu] Asuz UX31 Resolution stuck at 1600x900

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http://ubuntuforums.org – Hello, I need help changing my resolution from 1600x900. I open my display settings and the only option available is 1600x900. My system: Asuz UX31 Ultra Slim Linux 3.2.0-33-generic x86_64 DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS" Output of glxinfo | grep OpenGL $ glxinfo | grep OpenGL OpenGL vendor string: Tungsten Graphics, Inc OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile OpenGL version string: 3.0 Mesa 8.0.4 OpenGL shading language version string: 1.30 OpenGL extensions: lspci (Hardware)