On a Thinkpad T550 I observed that when using ' optirun glxgears -fullscreen' the framerate is much lower than otherwise. What would be the explanation?
If you look at the following results the Intel-results are : $ optirun glxgears -fullscreen 109 frames in 5.0 seconds = 21.666 FPS 112 frames in 5.0 seconds = 22.256 FPS 112 frames in 5.0 seconds = 22.234 FPS $ glxgears -fullscreen Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. 303 frames in 5.0 seconds = 60.469 FPS 300 frames in 5.0 seconds = 59.961 FPS 300 frames in 5.0 seconds = 59.965 FPS $ optirun glxgears 293 frames in 5.0 seconds = 58.567 FPS 300 frames in 5.0 seconds = 59.964 FPS 300 frames in 5.0 seconds = 59.965 FPS $ glxgears Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. 303 frames in 5.0 seconds = 60.462 FPS 300 frames in 5.0 seconds = 59.966 FPS 300 frames in 5.0 seconds = 59.965 FPS $lspci (irrellevant lines removed) 00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09) 08:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940M] (rev a2) Johann -- Because experiencing your loyal love is better than life itself, my lips will praise you. (Psalm 63:3)
