Hi, Folks - My amd64 stable ('buster') system has this on the motherboard:
AMD Kaveri [Radeon R7 Graphics] In the "Psychedelic colors" thread we added this to the kernal commandline: radeon.cik_support=0 amdgpu.cik_support=1 ...which, in the long run, may not have been necessary, but it's still there. I plugged in an nvidia GeForce 210 card and essentially lost most functional video, resulting in either "no signal" or a message that meant "I can see a signal but somewhere/somehow, it's not supported", sent by the display, depending on which card I connected to the display via either VGA or DVI cable. What am I missing? What do I need to do in order to make use of the nvidia GeForce card?