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История изменений

Исправление post-factum, (текущая версия) : 

OpenGL Renderer: Mesa DRI Intel(R) Ivybridge Mobile 
61.175229 frames/sec - 54.086243 Mpixels/sec
59.794718 frames/sec - 52.865706 Mpixels/sec
59.813997 frames/sec - 52.882751 Mpixels/sec
59.897729 frames/sec - 52.956780 Mpixels/sec
59.832235 frames/sec - 52.898876 Mpixels/sec
59.841269 frames/sec - 52.906863 Mpixels/sec
59.816030 frames/sec - 52.884548 Mpixels/sec
59.840380 frames/sec - 52.906077 Mpixels/sec
61.350175 frames/sec - 54.240917 Mpixels/sec
60.351636 frames/sec - 53.358088 Mpixels/sec
59.344653 frames/sec - 52.467794 Mpixels/sec
59.830670 frames/sec - 52.897492 Mpixels/sec
60.346139 frames/sec - 53.353228 Mpixels/sec

Это на таком:

➜  ~  lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

Как раз HD4000.

От включения-выключения эффектов KDE не зависит. vsync, как видишь.

Исправление post-factum, : 

OpenGL Renderer: Mesa DRI Intel(R) Ivybridge Mobile 
61.175229 frames/sec - 54.086243 Mpixels/sec
59.794718 frames/sec - 52.865706 Mpixels/sec
59.813997 frames/sec - 52.882751 Mpixels/sec
59.897729 frames/sec - 52.956780 Mpixels/sec
59.832235 frames/sec - 52.898876 Mpixels/sec
59.841269 frames/sec - 52.906863 Mpixels/sec
59.816030 frames/sec - 52.884548 Mpixels/sec
59.840380 frames/sec - 52.906077 Mpixels/sec
61.350175 frames/sec - 54.240917 Mpixels/sec
60.351636 frames/sec - 53.358088 Mpixels/sec
59.344653 frames/sec - 52.467794 Mpixels/sec
59.830670 frames/sec - 52.897492 Mpixels/sec
60.346139 frames/sec - 53.353228 Mpixels/sec

Это на таком:

➜  ~  lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

Как раз HD4000.

От включения-выключения эффектов KDE не зависит.

Исходная версия post-factum, : 

OpenGL Renderer: Mesa DRI Intel(R) Ivybridge Mobile 
61.175229 frames/sec - 54.086243 Mpixels/sec
59.794718 frames/sec - 52.865706 Mpixels/sec
59.813997 frames/sec - 52.882751 Mpixels/sec
59.897729 frames/sec - 52.956780 Mpixels/sec
59.832235 frames/sec - 52.898876 Mpixels/sec
59.841269 frames/sec - 52.906863 Mpixels/sec
59.816030 frames/sec - 52.884548 Mpixels/sec
59.840380 frames/sec - 52.906077 Mpixels/sec
61.350175 frames/sec - 54.240917 Mpixels/sec
60.351636 frames/sec - 53.358088 Mpixels/sec
59.344653 frames/sec - 52.467794 Mpixels/sec
59.830670 frames/sec - 52.897492 Mpixels/sec
60.346139 frames/sec - 53.353228 Mpixels/sec

Это на таком:

➜  ~  lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

Как раз HD4000.