[Nouveau] [Bug 105903] New: Only mouse cursor visible on DP-1 connected monitor, no graphics (was working earlier - reverse PRIME)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105903

            Bug ID: 105903
           Summary: Only mouse cursor visible on DP-1 connected monitor,
                    no graphics (was working earlier - reverse PRIME)
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: benny at ammitzboell-consult.dk
        QA Contact: xorg-team at lists.x.org

Created attachment 138617
  --> https://bugs.freedesktop.org/attachment.cgi?id=138617&action=edit
dmesg kernel log

I use Gentoo and nouveau with reverse PRIME to get an external monitor working
with my laptop. This setup used to work, but no longer does.

This is the script I use to turn the external outputs on:

tux_xc1706 ~ # cat nouveau_on.sh 
#!/bin/bash
read intel nv <<<"$(xrandr --listproviders |  awk '/outputs:/{print $4}' | tr
'\n' ' ')"
xrandr --setprovideroutputsource $nv $intel
xrandr --output DP-1-1 --mode 1920x1080 --right-of eDP-1

The monitor also gets connected and I can move the mouse pointer there - but if
I move a window from my laptop screen to the external monitor, the window is
not visible on the external monitor - only the mouse pointer.

This is my xorg.conf:

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "modesetting"
    Inactive       "nouveau"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "nouveau"
    Driver         "nouveau"
    BusID          "PCI:1:0:0"
    Option         "DRI" "3"
EndSection

Section "Device"
    Identifier     "modesetting"
    Driver         "modesetting"
    BusID          "PCI:0:2:0"
EndSection

Section "Screen"
    Identifier     "nouveau"
    Device         "nouveau"
EndSection

Section "Screen"
    Identifier     "modesetting"
    Device         "modesetting"
    Monitor        "Monitor0"
EndSection

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