Comment 4 for bug 282010

Andrew Ivanov (aa.ivanov) wrote :

I am observing the same issue on a Toshiba Satelite A110 laptop. It has the following video card:
andrew@sat11:~$ lspci | grep Graphics
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)

OpenGL games (testing with Supertux and Nexuiz) get distorted if desktop effects are enabled. If effects are disabled everything is ok. Playing the games in full screen or in windowed mode makes no difference.

When starting a opengl game with desktop effects enabled distortion does not happen at once. For a couple of seconds after starting the game all looks as normal. Then some elements disappear from screen and the rest get distorted.

On the other hand I am using the GLmatrix screensaver on this laptop, and I believe it uses openGL too. I have never had such issues with the screensaver.

Here's a list of the packages that seem relevant to me, along with their versions:
andrew@sat11:~$ dpkg -l | grep -i opengl
ii compiz 1:0.7.8-0ubuntu4.1 OpenGL window and compositing manager
ii compiz-core 1:0.7.8-0ubuntu4.1 OpenGL window and compositing manager
ii compiz-gnome 1:0.7.8-0ubuntu4.1 OpenGL window and compositing manager - GNOM
ii compiz-plugins 1:0.7.8-0ubuntu4.1 OpenGL window and compositing manager - plug
ii compiz-wrapper 1:0.7.8-0ubuntu4.1 OpenGL window and compositing manager, wrapp
ii freeglut3 2.4.0-6.1 OpenGL Utility Toolkit
ii libgl1-mesa-dri 7.2-1ubuntu2 A free implementation of the OpenGL API -- D
ii libgl1-mesa-glx 7.2-1ubuntu2 A free implementation of the OpenGL API -- G
ii libglew1.5 1.5.0dfsg1-3ubuntu1 The OpenGL Extension Wrangler - runtime envi
ii libglitz-glx1 0.5.6-1 Glitz OpenGL library GLX backend
ii libglitz1 0.5.6-1 Glitz OpenGL image compositing library
ii libglu1-mesa 7.2-1ubuntu2 The OpenGL utility library (GLU)
ii libglut3 3.7-25 the OpenGL Utility Toolkit
ii libgtkglext1 1.2.0-1ubuntu1 OpenGL Extension to GTK+ (shared libraries)
ii libqt4-opengl 4.4.3-0ubuntu1 Qt 4 OpenGL module
andrew@sat11:~$ dpkg -l | grep -i supertux
ii supertux 0.3.1d-0ubuntu2 Classic 2D jump 'n run sidescroller with Tux
ii supertux-data 0.3.1d-0ubuntu2 Levels for classic 2D jump 'n run sidescroll
andrew@sat11:~$ dpkg -l | grep -i nexuiz
ii nexuiz 2.4.2-1 A fast-paced 3D first-person shooter
ii nexuiz-data 2.4.2-1 Nexuiz game data files
ii nexuiz-music 2.4.2-1 Nexuiz music files

Please advise if other information is needed.