Hello,
i use nvidia driver 410.78 instaled by repository ppa:graphics-drivers/ppa on my ubuntu 18.04.1 fresh install, everything works fine. Few days a go, i don’t know exactly what happend (maybe system updates, i make nothing with system) driver is broken. It is mean external monitor does not work. Does not detect HDMI output.
$ xrandr | grep ’ connected’
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
All output xrandr
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
DP-1-1 disconnected (normal left inverted right x axis y axis)
HDMI-1-1 disconnected (normal left inverted right x axis y axis)
DP-1-2 disconnected (normal left inverted right x axis y axis)
HDMI-1-2 disconnected (normal left inverted right x axis y axis)
DP-1-3 disconnected (normal left inverted right x axis y axis)
HDMI-1-3 disconnected (normal left inverted right x axis y axis)
Here is missing “HDMI-1-4”
I uninstall nvidia driver and default nouveau use Intel HD Graphics 630 (Kaby Lake GT2) and external monitor works fine.
$ xrandr | grep ’ connected’
eDP-1 connected 1920x1080+0+2160 (normal left inverted right x axis y axis) 344mm x 194mm
HDMI-1-4 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 600mm x 340mm
I use nvidia-config and it makes nothing.
GPU: GP106M [GeForce GTX 1060 Mobile]
OS: Ubuntu 18.04
Monitor: 4K LG 27UD69, HDMI cable 2.0
Log report generated by
sudo nvidia-bug-report.sh --safe-mode --extra-system-data
sudo nvidia-bug-report.sh
nvidia-bug-report-safe-mode-and-extra-data.log.gz (90.4 KB)
nvidia-bug-report.log.gz (1.03 MB)