Dual monitor setup with Wayland not working

[Simon Colston]

Hi,

I am using Fedora Workstation 36 and have 2 monitors connected via HDMI to graphics on the motherboard (Intel) and a 
nvidia graphics card.

Everything works fine when I log in using Xorg.

However, if I log in using Wayland, the monitor connected to the motherboard stays blank.  The monitor is detected in 
Settings and appears to be 'working' i.e. if I move a window to the blank monitor I can click on it and it works as 
expected, it's just that nothing is displayed on that monitor.

Do you have any suggestions as to how I could make this setup work with Wayland?

Below is come information which I thought may be helpful.

$ uname -rsvp
Linux 5.17.12-300.fc36.x86_64 #1 SMP PREEMPT Mon May 30 16:56:53 UTC 2022 x86_64

$ lspci -k | grep -A 5 VGA
00:02.0 VGA compatible controller: Intel Corporation CoffeeLake-S GT2 [UHD Graphics 630] (rev 02)
         DeviceName: Onboard - Video
         Subsystem: ASUSTeK Computer Inc. Device 8694
         Kernel driver in use: i915
         Kernel modules: i915
00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller
--
01:00.0 VGA compatible controller: NVIDIA Corporation GP108 [GeForce GT 1030] (rev a1)
         Subsystem: eVga.com. Corp. Device 6336
         Kernel driver in use: nouveau
         Kernel modules: nouveau
01:00.1 Audio device: NVIDIA Corporation GP108 High Definition Audio Controller (rev a1)
         Subsystem: eVga.com. Corp. Device 6336

$ cat .config/monitors.xml
<monitors version="2">
   <configuration>
     <logicalmonitor>
       <x>0</x>
       <y>0</y>
       <scale>1</scale>
       <primary>yes</primary>
       <monitor>
         <monitorspec>
           <connector>HDMI-2</connector>
           <vendor>DEL</vendor>
           <product>DELL U2518D</product>
           <serial>3C4YP93RAEDL</serial>
         </monitorspec>
         <mode>
           <width>2560</width>
           <height>1440</height>
           <rate>59.950550079345703</rate>
         </mode>
       </monitor>
     </logicalmonitor>
     <logicalmonitor>
       <x>2560</x>
       <y>0</y>
       <scale>1</scale>
       <monitor>
         <monitorspec>
           <connector>HDMI-1-1</connector>
           <vendor>DEL</vendor>
           <product>DELL U2518D</product>
           <serial>3C4YP93LAYAL</serial>
         </monitorspec>
         <mode>
           <width>2560</width>
           <height>1440</height>
           <rate>59.950550079345703</rate>
         </mode>
       </monitor>
     </logicalmonitor>
   </configuration>
</monitors>

Thanks,

Simon