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* Older video cards from big-three vendors: Intel 8xx, Radeon pre-R300, NVIDIA pre-GeForce-6. | * Older video cards from big-three vendors: Intel 8xx, Radeon pre-R300, NVIDIA pre-GeForce-6. | ||
Testing older video cards may require creating and editing xorg.conf, or moving the DRI drivers for those cards out of the way to force fallback to llvmpipe, as in, <code>mv /usr/lib*/dri/radeon_dri.so /tmp</code> (substituting the right value for "radeon", ie, i915, nouveau, r200, etc.) You will need to restart X by logging out and back in for this to take effect. | |||
Of lesser interest, but still worth checking, is whether GPUs already on the hardware blacklist work with their native driver instead. This can be checked by commenting out the appropriate entry from <code>/usr/share/gnome-session/hardware-compatibility</code> and logging out and back in to Gnome. | |||
{{admon/important | Check if Xorg uses software rendering, run: <code>glxinfo</code> and check output for string: <code>OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 0x300)</code>}} | {{admon/important | Check if Xorg uses software rendering, run: <code>glxinfo</code> and check output for string: <code>OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 0x300)</code>}} | ||