Hello everyone. I encountered a problem of external monitor with my laptop. I’m using a laptop with GTX1050 & nouveau driver, and the external monitor is connected to hdmi port of laptop, of which output should be provided by GTX1050. The external monitor works fine on login screen (I can move cursor to it), but after login it stops working.
xrandr --query says HDMI-1 disconnected and external monitor entered power saving mode.
Below’s a link to part of xorg.log, external screen seems to be correctly detected (time 46.173), why did this problem occur?