Shantanu

Hi, I am running an all-in-one desktop pc (dell 2720) and I have successfully installed an nvidia 1060 egpu (EVGA SC model) with the Akitio Thunder2 case and dell PSU. My all-in-one pc only has TB1, but I can't change that - so what. This setup works in windows: I boot into windows and then I have to connect / disconnect / connect the egpu. For some reason, windows only recognizes the egpu on the second connection attempt. I can always reproduce it this way and everything is running smooth and stable. So far so good. Now after a few days I tried to get it running on Ubuntu. I installed the most recent drivers: sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt update sudo apt purge nvidia* sudo apt install nvidia-370 I can also see the graphics card (note that I also have a built-in GT750M and integrated Intel CPU besides the GTX1060 egpu) $ lspci -v | perl -ne '/VGA/../^$/ and /VGA|Kern/ and print' 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller]) Kernel driver in use: i915 Kernel modules: i915 01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 750M] (rev a1) (prog-if 00 [VGA controller]) Kernel driver in use: nvidia Kernel modules: nvidiafb, nouveau, nvidia_370, nvidia_370_drm 0a:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1) (prog-if 00 [VGA controller]) Kernel driver in use: nvidia Kernel modules: nvidiafb, nouveau, nvidia_370, nvidia_370_drm $ sudo ubuntu-drivers devices == /sys/devices/pci0000:00/0000:00:1c.4/0000:05:00.0/0000:06:03.0/0000:08:00.0/0000:09:03.0/0000:0a:00.0 == modalias : pci:v000010DEd00001C03sv00003842sd00006163bc03sc00i00 vendor : NVIDIA Corporation driver : xserver-xorg-video-nouveau - distro free builtin driver : nvidia-367 - third-party free driver : nvidia-370 - third-party free recommended == /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 == modalias : pci:v000010DEd00000FE4sv00001028sd000005B0bc03sc00i00 model : GK107M [GeForce GT 750M] vendor : NVIDIA Corporation driver : nvidia-340 - third-party free driver : xserver-xorg-video-nouveau - distro free builtin driver : nvidia-364 - third-party free driver : nvidia-358 - third-party free driver : nvidia-361 - third-party free == cpu-microcode.py == driver : intel-microcode - distro non-free Now my question is: * How can I switch to the egpu? With `prime-select` I can only switch between nvidia and intel, where choosing nvidia will activate the built-in not the external nvidia gpu. And in `nvidia-settings` I can only see the built-in GT750M, but not the external GTX1060. Am I missing something? Could this be related to having two different nvidia gpus? I am running out of ideas..