I have a ThinkPad W520 laptop with an nVidia optimus display. I recently upgraded my linux system to linux-4.2.5 and nvidia-358 and now I cannot get the internal display to be available for X11. Before that, I was able to use by my internal screen and an external DVI display simultaneously with the following setup:I startup via lightdm. My display_setup.sh script is:#!/bin/shxrandr --setprovideroutputsource modesetting NVIDIA-0xrandr --autoMy /etc/X11/xorg.conf.d/20-nvidia.conf is:Section ServerLayout    Identifier layout    Screen 0 nvidia    Inactive intelEndSectionSection Device    Identifier nvidia    Driver nvidia    BusID PCI:1:0:0EndSectionSection Screen    Identifier nvidia    Device nvidia    Option AllowEmptyInitialConfigurationEndSectionSection Device    Identifier intel    Driver modesetting    Option AccelMethod noneEndSectionSection Screen    Identifier intel    Device intelEndSectionMy /var/log/Xorg.0.log shows:[  1399.370] (--) NVIDIA(GPU-0): DFP-0: disconnected[  1399.370] (--) NVIDIA(GPU-0): DFP-0: Internal LVDS[  1399.370] (--) NVIDIA(GPU-0): DFP-0: 330.0 MHz maximum pixel clockDoes that mean there is something wrong with my intel driver?Any suggestions for further debugging?
intel driver on nvidia optimus laptop not recognizing internal display
xorg;nvidia;intel;multi monitor;intel graphics