# Should install OpenGL via cuda package? **URL:** \ **Category:** CUDA Programming and Performance\ **Created:** [August 16, 2019, 5:42pm UTC](https://forums.developer.nvidia.com/t/should-install-opengl-via-cuda-package/80078 "2019-08-16T17:42:37Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![mahmood.nt](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@mahmood.nt](https://forums.developer.nvidia.com/u/mahmood.nt)\ **Post date:** [August 16, 2019, 5:42pm UTC](https://forums.developer.nvidia.com/t/should-install-opengl-via-cuda-package/80078/1 "2019-08-16T17:42:37Z")
I want to know what is the consequence of _not_ installing OpenGL via the cuda package? I mean, if I install the driver and toolkit on an Ubuntu, will opengl softwares use GPU or not? Currently, I have installed cuda-10 driver and toolkit (without opengl) on Ubuntu 18.04 while nouveau has been blacklisted. However, when I run glmark2 [1] programs, no process is offloaded on GPU and I see 300% PCU usage. On the other hand, I remember that when I installed opengl via cuda package, I had some problems with the display. For example, high cpu usage and other things. So, I would like to know what is the recommendation of Nvidia for Ubuntu regarding opengl? [1] [GitHub - glmark2/glmark2: glmark2 is an OpenGL 2.0 and ES 2.0 benchmark](https://github.com/glmark2/glmark2) ---
**Author:** ![Robert\_Crovella](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/robert_crovella/32/14043_2.png) [@Robert\_Crovella](https://forums.developer.nvidia.com/u/Robert_Crovella)\ **Post date:** [August 16, 2019, 6:03pm UTC](https://forums.developer.nvidia.com/t/should-install-opengl-via-cuda-package/80078/2 "2019-08-16T18:03:23Z")
correct, if you don’t install the OpenGL libraries bundled with the NVIDIA GPU driver installer, then OpenGL apps won’t use the GPU.