This is Lightsmark 2008 [Linux 64bit] log. Check it if benchmark doesn't work properly.
Penumbra quality: 7/8 on ATI Radeon HD 3870.
Loading Lightsmark2008.cfg...
Loading objects/I_Robot_female_HD.3DS...
Loading scenes/wop_padattic/wop_padatticBB.ani...
Detection quality: auto->high.
Loading scene scenes/wop_padattic/wop_padatticBB.bsp...
Finished, average fps = 199.97.
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Lightsmark:
1680 x 1050