If the hardware in question is a third-party device, you may be directed to contact the manufacturer of the device for further help. Then you could be directed to contact Canonical for further Software support. The OS reinstall from the recovery partition does not resolve the issue. Note: Dell only supports the hardware that they ship with the PC and the factory-installed version of the Ubuntu Operating system. Most Desktop BIOS settings mean that when an add-in Video card is detected, it takes over from the Integrated GPU. While add-on Video cards are technically a second GPU added to the Integrated GPU, they are not part of Hybrid Graphics. If your system has a hardware mux, it can switch between GPUs. The discrete GPU is an optional extra and is always more powerful than the integrated GPU.

The first is the integrated GPU and is part of the onboard CPU and the other is called the discrete GPU. Most Notebook and AIO (All in One) systems can run two GPUs on the motherboard. I hope you find the following information useful.

Remember that Dell supports the Hardware that ships with the unit and the reinstall or recovery of the Operating system that came with the unit. This article is as much a reference guide as it is a troubleshooting guide. This article deals with Dell PCs using the Ubuntu operating system and the common videos issues you are likely to experience over time. What Proprietary Drivers and Open Source Drivers means for your Video output.

This article goes over the differences between Discrete Graphics and Video Card Graphics.

Check graphics card ubuntu terminal