I wrote:
>Until FC39, I had only run Wayland on one of my machines, not even
>trying to bring it up on the others. Since I intensely dislike the
>graphic login, I found a way to start it from a virtual terminal like
>I normally start X11. Instead of "startx", I have a short script I call
>"startw" that contains only the single line, "/usr/bin/dbus-run-session
>/usr/bin/startplasma-wayland". (Yes, I run KDE.) This worked on FC38.
>
>Now on the same machine with FC39 (upgraded with system-upgrade) this
>no longer works. Instead, it produces 248 lines of output and then
>terminates. Reviewing those lines, it appears that it is complaining
>about, 'failed to open drm device at "/dev/dri/card0"' and 'No suitable
>DRM devices have been found'. I'm not sure what device that refers
>to but there seems to be some indication that it is my display. The
>display certainly works fine for the virtual terminal I use to run
>this script, and it also works fine for X11 if I run "startx".
>
>Ok, so as a fallback I tried a graphic login. This reaches a completely
>blank screen and goes no further. The machine is up as I can reach it
>with SSH but the display is useless. It responds to Ctrl-Alt-Delete
>but nothing else. I can't get it to switch to a different desktop. I
>noticed that SDDM defaults to Wayland so I changed "sddm.conf" to
>include "DisplayServer=x11". The allowed the graphic login to reach
>a login page but nothing I entered there was accepted even when I
>switched to specify starting an X11 session instead of Wayland.
>
>There are some online references to a problem with the /dev/dri/card0
>device but they are ancient and don't seem relevant.
>
>This machine is intended to run an application that only works on
>Wayland (Waydroid) so at this point I'm stimied. Any suggestions
>would be very helpful.
After much searching, checking alternate users, verifying permissions,
etc, I determined I was unlikely to find the problem. I took the coward's
way out and downgraded the machine to FC38. After that, the problem is
gone!
I'll leave it at FC38 for a while while watching for any online comments
that might provide a clue to a real solution.
--
Dave Close, Compata, Irvine CA +1 714 434 7359
dave@xxxxxxxxxxx dhclose@xxxxxxxxxxxxxxxxxx
"I am patient with stupidity but not with those
who are proud of it." -- Edith Sitwell
--
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