[Nouveau] Blank screen after upgrade Fedora 34/XFCE -> Fedora 36/XFCE

[Klaus Ebbe Grue]

Hi Karol,


> > After upgrade from Fedora 34/XFCE to Fedora 36/XFCE, I experience a black screen instead of a login prompt, unless I make a file named /etc/X11/xorg.conf.d/90-monitor.conf which contains eg

> >
> >
> > Section "Monitor"
> >         Identifier "DP-1"
> >         Option "PreferredMode" "720x480"
> > EndSection
> >
> > Before the upgrade from Fedora 34 to 36, everything worked if the file looked like this:
> >
> > Section "Monitor"
> >         Identifier "DP-1"
> >         Modeline "3840x2160" 533.25 3840 3888 3920 4000 2160 2163 2168 2222 +hsync -vsync
> >         Option "PreferredMode" "3840x2160"
> > EndSection
> >
> > But that does not work on my Fedora 36.
> >

> did you try not using any custom Xorg config, because I don't see why you are even trying that?

Yes, I have tried not using any custom Xorg config. That gives me a blank screen under both Fedora 34 and Fedora 36.

Or, more precisely: My /etc/X11 contains no xorg.conf. My /etc/X11/xorg.conf.d only contains a file named 00-keyboard.conf which is written by systemd-localed(8). If I do not add an /etc/X11/xorg.conf.d/90-monitor.conf then I get a blank screen instead of a login screen.

My screen went blank first time at upgrade from 5.8.18-300.fc33.x86_64 to 5.9.9-200.fc33.x86_64, cf https://ask.fedoraproject.org/t/no-login-screen-after-upgrade/10618 . It was after that upgrade I added an /etc/X11/xorg.conf.d/90-monitor.conf. Now my screen has gone blank a second time at upgrade from Fedora 34 to 36, and I am a bit short of ideas what to do from here.

Cheers,
Klaus

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