[Nouveau] [Bug 94832] Reverse Prime corruption with nouveau using radeon outputs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94832

--- Comment #7 from Christoph Haag <haagch at frickel.club> ---
Created attachment 122737
  --> https://bugs.freedesktop.org/attachment.cgi?id=122737&action=edit
journal from running reverse prime from radeon

This may be a different problem, but when I try it the other way around by
adding /etc/X11/xorg.conf.d/20-radeon.conf with

Section "Device"
    Identifier     "Device0"
    Driver         "radeon"
    BusID          "PCI:2:0:0"
EndSection
Section "Device"
    Identifier     "Device1"
    Driver         "nouveau"
    BusID          "PCI:0:0:d"
EndSection

then X starts on my radeon gpu. Then I can do
xrandr --setprovideroutputsource radeon nouveau
and then
xrandr --output VGA-1-2 --auto --output DVI-0 --right-of VGA-1-2 --mode
1280x1024
then I get pretty gruesome messages in dmesg.

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