- Kubuntu 16.04
- GeForce GTX 460
- 390.25 drivers
- HP ZR24i display, plugged in through DVI
- SONY KDL40W600B 40" TV, plugged in through HDMI
I have the monitor set to primary in the display settings. This wasn't happening last year, and it suddenly is now. I haven't installed or changed anything that I am aware of that is relevant. I just updated the driver yesterday to see if it would fix it, but it doesn't.
What happens is that when I unplug the HDMI cable from the TV so that I can plug something else into it, the primary display (the monitor) goes black. I can ctrl-alt-F1 into a terminal, but when I do ctrl-alt-F7 to go back to the desktop, the screen is just black again.
It was not doing this last year. Yesterday is the first time I tried unplugging it again (irrelevantly, to plug in a console), and this happened. when I tried to do startx from the terminal, I saw a line that said something along the lines of "NVIDIA: wrong # of displays in RAID". The thing is, I don't remember setting any such thing up or agreeing to do it automatically.
I don't see anything relevant in nvidia-settings for this. I need to be able to unplug the TV without losing the primary display. This used to work perfectly fine and I don't know what happened.
(The TV does have multiple HDMI ports, but only one fits the graphics card and console both, the others are a different, more square-ish shape).