OK, it's an X config. It runs this script:
#!/bin/bash
# Choose an appropriate "Primary GPU" for Xorg
# This should normally be vc4 (not v3d) but when some
# other display is enabled on Pi5, it should match that.
IDENTIFIER=vc4
MATCHDRIVER=vc4
if raspi-config nonint is_pifive; then
if ls /dev/dri/by-path/ | grep -q '\(vec\|dsi\|dpi\)-card' ; then
IDENTIFIER=rp1
MATCHDRIVER='rp1-vec|rp1-dsi|rp1-dpi'
fi
fi
sed -e "s/XXX/${IDENTIFIER}/" << EOF | sed -e "s/YYY/${MATCHDRIVER}/" >
/etc/X11/xorg.conf.d/99-v3d.conf.tmp
Section "OutputClass"
Identifier "XXX"
MatchDriver "YYY"
Driver "modesetting"
Option "PrimaryGPU" "true"
EndSection
EOF
mv -f /etc/X11/xorg.conf.d/99-v3d.conf.tmp
/etc/X11/xorg.conf.d/99-v3d.conf
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/2044718
Title:
mantic on raspberry5: x and/or lightdm problems
Status in SDDM:
New
Status in linux-raspi package in Ubuntu:
Confirmed
Status in xorg-server package in Ubuntu:
Confirmed
Bug description:
running mantic on raspberry5, graphical sessions doesn't start unless on
gdm3; while performing installation, Ubuntu Budgie graphical session goes on
without problems but at reboot DE doesn't start.
Tried installing "classical" ubuntu and DE came on w/o problems; installed
budgie-desktop and lightdm side by side and budgie didn't start; installed sddm
with same results. Only gdm3 works
See attached logs collection
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https://bugs.launchpad.net/sddm/+bug/2044718/+subscriptions
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