# Run PoverVR examples on Lunux Ubuntu 12.04 desktop **URL:** \ **Category:** PowerVR Insider\ **Tags:** pvrvframe\ **Created:** [April 1, 2015, 4:12pm UTC](https://forums.imgtec.com/t/run-povervr-examples-on-lunux-ubuntu-12-04-desktop/2279 "2015-04-01T16:12:18Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![ericruei](https://avatars.discourse-cdn.com/v4/letter/e/49beb7/32.png) [@ericruei](https://forums.imgtec.com/u/ericruei)\ **Post date:** [April 1, 2015, 4:12pm UTC](https://forums.imgtec.com/t/run-povervr-examples-on-lunux-ubuntu-12-04-desktop/2279/1 "2015-04-01T16:12:18Z")
I am trying to build and run some PowerVR examples on my Linux Laptop with PVRVFrame by following the user manual. I am able to build the example and the library seems to be fine as shown below: ldd OGLES2ChameleonMan linux-vdso.so.1 =\> (0x00007fffe5ffc000) libGLESv2.so =\> /opt/Imagination/PowerVR\_Graphics/PowerVR\_Tools/PVRVFrame/Library/Linux\_x86\_64/libGLESv2.so (0x00007fca99871000) libEGL.so =\> /opt/Imagination/PowerVR\_Graphics/PowerVR\_Tools/PVRVFrame/Library/Linux\_x86\_64/libEGL.so (0x00007fca995c5000) libstdc++.so.6 =\> /usr/lib/x86\_64-linux-gnu/libstdc++.so.6 (0x00007fca992a8000) libm.so.6 =\> /lib/x86\_64-linux-gnu/libm.so.6 (0x00007fca98fac000) libgcc\_s.so.1 =\> /lib/x86\_64-linux-gnu/libgcc\_s.so.1 (0x00007fca98d96000) libc.so.6 =\> /lib/x86\_64-linux-gnu/libc.so.6 (0x00007fca989d6000) libpthread.so.0 =\> /lib/x86\_64-linux-gnu/libpthread.so.0 (0x00007fca987b9000) libdl.so.2 =\> /lib/x86\_64-linux-gnu/libdl.so.2 (0x00007fca985b5000) libX11.so.6 =\> /usr/lib/x86\_64-linux-gnu/libX11.so.6 (0x00007fca9827f000) /lib64/ld-linux-x86-64.so.2 (0x00007fca9a174000) libxcb.so.1 =\> /usr/lib/x86\_64-linux-gnu/libxcb.so.1 (0x00007fca98061000) libXau.so.6 =\> /usr/lib/x86\_64-linux-gnu/libXau.so.6 (0x00007fca97e5d000) libXdmcp.so.6 =\> /usr/lib/x86\_64-linux-gnu/libXdmcp.so.6 (0x00007fca97c57000) However, the application does not work with the following error: ./OGLES2ChameleonMan Can’t open keypad input device (/dev/input/event1) PVRShell: EGL 1.4 initialized Exit message has been set to: “PVRShell: Unable to create a context ”. InitAPI failed! PVRShell: Unable to create a context The PVRVFRame GUI did record the PID and indicate “loss connection to client” The other interesting observation is that the only available profile is host. Can someone shed a light what may happen and how to fix it. ---
**Author:** ![JoeDavis](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.imgtec.com/joedavis/32/71_2.png) [@JoeDavis](https://forums.imgtec.com/u/JoeDavis)\ **Post date:** [April 2, 2015, 7:02am UTC](https://forums.imgtec.com/t/run-povervr-examples-on-lunux-ubuntu-12-04-desktop/2279/2 "2015-04-02T07:02:55Z")
Hi Eric, PVRVFrame requires OpenGL drivers on your host to emulate OpenGL ES. The [PVRVFrame webpage](https://www.imgcommunity.local/developers/powervr/tools/pvrvframe/) lists the required versions of OpenGL to emulate each revision of OpenGL ES. Does your development machine have a GPU? Are the graphics drivers up to date? ---
**Author:** ![ericruei](https://avatars.discourse-cdn.com/v4/letter/e/49beb7/32.png) [@ericruei](https://forums.imgtec.com/u/ericruei)\ **Post date:** [April 2, 2015, 3:59pm UTC](https://forums.imgtec.com/t/run-povervr-examples-on-lunux-ubuntu-12-04-desktop/2279/3 "2015-04-02T15:59:23Z")
Hi, Joe: Thank you so much for your quick response! I am trying to run an openES 2.0 example and the requirement is - OpenGL ES 2.0 emulation (requires a graphics card with OpenGL 2.0 support) I am able to run the openGL 4.0 examples on the same Linux Ubuntu laptop. Does it mean that the GPU supports OPenGL 2.0 as well? Best regards, Eric ---
**Author:** ![ChrisPenrose](https://avatars.discourse-cdn.com/v4/letter/c/e36b37/32.png) [@ChrisPenrose](https://forums.imgtec.com/u/ChrisPenrose)\ **Post date:** [April 7, 2015, 9:10am UTC](https://forums.imgtec.com/t/run-povervr-examples-on-lunux-ubuntu-12-04-desktop/2279/4 "2015-04-07T09:10:58Z")
Hi Eric, It looks like PVRVFrame is failing to load your OpenGL driver for some reason. Can you attach the output of the following command? > strace ./OGLES2ChameleonMan 2\>&1 | grep '^open(".\*\.so'