I recently installed Centos 7 on a Dell PowerEdge R740 with a Nvidia GPU added to it.
After installation I was surprised to see that the iDRAC remote console capabilities was not working.
console com2 when doing ssh to the iDRAC even though there is a
Getting the serial interface working was just a matter of switching the port mapping in the iDRAC from
serialportaddrsel=serial1com1serial2com2 using the iDRAC gui or the command line tools (
But fixing the remote console in the GUI is another story.
After some dialogue with Dell I was able to confirm that this is the expected behavior as the remote console only shows what's on the integrated GPU and the OS only sends output to the Nvidia GPU.
The subject of ttys is a bit mystical with it being layer upon layer of abstractions emulating long dead hardware, but should it not be possible to have ttys presented on all GPUs in a system?
lspci | grep VGA lists both GPUs, so my interpretation is that the hardware allows linux to use both.