Here's the results of the logs for sddm:
ps -eaf | grep sddm
root 1497 1 0 17:59 ? 00:00:00 /usr/bin/sddm
root 1501 1497 0 17:59 tty1 00:00:00 /usr/libexec/Xorg -nolisten tcp -auth /var/run/sddm/{a1d9270c-38d2-4241-8d36-caf7228d5813} -background none -noreset -displayfd 16 -seat seat0 vt1
root 1640 1497 0 17:59 ? 00:00:00 /usr/libexec/sddm-helper --socket /tmp/sddm-autheb500c3c-e0c2-4f60-a477-8589baccf976 --id 2 --start /usr/bin/sddm-greeter --socket /tmp/sddm-:0-WzNaeg --theme /usr/share/sddm/themes/01-breeze-fedora --user sddm --greeter
sddm 1641 1 0 17:59 ? 00:00:00 /usr/lib/systemd/systemd --user
sddm 1643 1641 0 17:59 ? 00:00:00 (sd-pam)
sddm 1648 1641 0 17:59 ? 00:00:00 /usr/bin/pulseaudio --daemonize=no
sddm 1649 1640 1 17:59 ? 00:00:00 /usr/bin/sddm-greeter --socket /tmp/sddm-:0-WzNaeg --theme /usr/share/sddm/themes/01-breeze-fedora
sddm 1674 1641 0 17:59 ? 00:00:00 /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
sddm 1700 1648 0 17:59 ? 00:00:00 /usr/libexec/pulse/gconf-helper
sddm 1702 1641 0 17:59 ? 00:00:00 /usr/libexec/gconfd-2
testuser 1789 1740 0 18:00 tty2 00:00:00 grep --color=auto sddm
root 1501 1497 0 17:59 tty1 00:00:00 /usr/libexec/Xorg -nolisten tcp -auth /var/run/sddm/{a1d9270c-38d2-4241-8d36-caf7228d5813} -background none -noreset -displayfd 16 -seat seat0 vt1
root 1640 1497 0 17:59 ? 00:00:00 /usr/libexec/sddm-helper --socket /tmp/sddm-autheb500c3c-e0c2-4f60-a477-8589baccf976 --id 2 --start /usr/bin/sddm-greeter --socket /tmp/sddm-:0-WzNaeg --theme /usr/share/sddm/themes/01-breeze-fedora --user sddm --greeter
sddm 1641 1 0 17:59 ? 00:00:00 /usr/lib/systemd/systemd --user
sddm 1643 1641 0 17:59 ? 00:00:00 (sd-pam)
sddm 1648 1641 0 17:59 ? 00:00:00 /usr/bin/pulseaudio --daemonize=no
sddm 1649 1640 1 17:59 ? 00:00:00 /usr/bin/sddm-greeter --socket /tmp/sddm-:0-WzNaeg --theme /usr/share/sddm/themes/01-breeze-fedora
sddm 1674 1641 0 17:59 ? 00:00:00 /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
sddm 1700 1648 0 17:59 ? 00:00:00 /usr/libexec/pulse/gconf-helper
sddm 1702 1641 0 17:59 ? 00:00:00 /usr/libexec/gconfd-2
testuser 1789 1740 0 18:00 tty2 00:00:00 grep --color=auto sddm
journalctl -b 0 | grep sddm
Aug 18 17:59:36 testlaptop.test.domail audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=sddm comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail audit[1640]: USER_AUTH pid=1640 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:authentication grantors=pam_permit acct="sddm" exe="/usr/libexec/sddm-helper" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail audit[1640]: USER_ACCT pid=1640 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:accounting grantors=pam_permit acct="sddm" exe="/usr/libexec/sddm-helper" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail audit[1640]: CRED_ACQ pid=1640 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pam_permit acct="sddm" exe="/usr/libexec/sddm-helper" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail sddm-helper[1640]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Aug 18 17:59:38 testlaptop.test.domail systemd[1]: Created slice User Slice of sddm.
Aug 18 17:59:38 testlaptop.test.domail systemd-logind[1254]: New session c1 of user sddm.
Aug 18 17:59:38 testlaptop.test.domail systemd[1]: Started Session c1 of user sddm.
Aug 18 17:59:38 testlaptop.test.domail audit[1641]: USER_ACCT pid=1641 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='op=PAM:accounting grantors=pam_unix,pam_localuser acct="sddm" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail systemd[1641]: pam_unix(systemd-user:session): session opened for user sddm by (uid=0)
Aug 18 17:59:38 testlaptop.test.domail audit[1641]: USER_START pid=1641 uid=0 auid=995 ses=1 subj=system_u:system_r:init_t:s0 msg='op=PAM:session_open grantors=pam_selinux,pam_selinux,pam_loginuid,pam_keyinit,pam_limits,pam_systemd,pam_unix acct="sddm" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail audit[1640]: USER_START pid=1640 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:session_open grantors=pam_unix,pam_systemd acct="sddm" exe="/usr/libexec/sddm-helper" hostname=? addr=? terminal=:0 res=success'
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: Loading file:///usr/share/sddm/themes/01-breeze-fedora/Main.qml...
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject::installEventFilter(): Cannot filter events for objects in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject::installEventFilter(): Cannot filter events for objects in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: Cannot watch QRC-like path ":/icons/hicolor/index.theme"
Aug 18 17:59:39 testlaptop.test.domail dbus-daemon[1284]: [system] Activating via systemd: service name='org.freedesktop.UPower' unit='upower.service' requested by ':1.46' (uid=995 pid=1649 comm="/usr/bin/sddm-greeter --socket /tmp/sddm-:0-WzNaeg" label="system_u:system_r:xdm_t:s0-s0:c0.c1023")
Aug 18 17:59:38 testlaptop.test.domail audit[1640]: USER_AUTH pid=1640 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:authentication grantors=pam_permit acct="sddm" exe="/usr/libexec/sddm-helper" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail audit[1640]: USER_ACCT pid=1640 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:accounting grantors=pam_permit acct="sddm" exe="/usr/libexec/sddm-helper" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail audit[1640]: CRED_ACQ pid=1640 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pam_permit acct="sddm" exe="/usr/libexec/sddm-helper" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail sddm-helper[1640]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Aug 18 17:59:38 testlaptop.test.domail systemd[1]: Created slice User Slice of sddm.
Aug 18 17:59:38 testlaptop.test.domail systemd-logind[1254]: New session c1 of user sddm.
Aug 18 17:59:38 testlaptop.test.domail systemd[1]: Started Session c1 of user sddm.
Aug 18 17:59:38 testlaptop.test.domail audit[1641]: USER_ACCT pid=1641 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='op=PAM:accounting grantors=pam_unix,pam_localuser acct="sddm" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail systemd[1641]: pam_unix(systemd-user:session): session opened for user sddm by (uid=0)
Aug 18 17:59:38 testlaptop.test.domail audit[1641]: USER_START pid=1641 uid=0 auid=995 ses=1 subj=system_u:system_r:init_t:s0 msg='op=PAM:session_open grantors=pam_selinux,pam_selinux,pam_loginuid,pam_keyinit,pam_limits,pam_systemd,pam_unix acct="sddm" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 18 17:59:38 testlaptop.test.domail audit[1640]: USER_START pid=1640 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:session_open grantors=pam_unix,pam_systemd acct="sddm" exe="/usr/libexec/sddm-helper" hostname=? addr=? terminal=:0 res=success'
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: Loading file:///usr/share/sddm/themes/01-breeze-fedora/Main.qml...
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject::installEventFilter(): Cannot filter events for objects in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject: Cannot create children for a parent that is in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: QObject::installEventFilter(): Cannot filter events for objects in a different thread.
Aug 18 17:59:39 testlaptop.test.domail sddm-greeter[1649]: Cannot watch QRC-like path ":/icons/hicolor/index.theme"
Aug 18 17:59:39 testlaptop.test.domail dbus-daemon[1284]: [system] Activating via systemd: service name='org.freedesktop.UPower' unit='upower.service' requested by ':1.46' (uid=995 pid=1649 comm="/usr/bin/sddm-greeter --socket /tmp/sddm-:0-WzNaeg" label="system_u:system_r:xdm_t:s0-s0:c0.c1023")
Everything appears fine with the nVidia settings app and the System settings once KDE has loaded.
I'll try again with LightDM in a couple hours, my ravening horde is at the babygates!
Thomas
On Fri, Aug 17, 2018 at 7:43 PM Tim via users <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
Allegedly, on or about 15 August 2018, Thomas Letherby sent:
> I tried with LightDM, which gave the same black screen, with the
> following in /var/log/messages, not sure why it's trying to talk to
> PulseAudio?
I'm not sure what stage you're up to by then: Just getting the logon
screen, or have logged in?
If it's the login screen, it could be that they've designed it so that
it can make use of audio (e.g. spoken prompts for the blind), and the
sound system is started whether, or not, it's actually going to be
used. And I've seen logon screens which play a little tune as they pop
up (on other distros, where the sound actually was working at that
stage).
--
[tim@localhost ~]$ uname -rsvp
Linux 4.16.11-100.fc26.x86_64 #1 SMP Tue May 22 20:02:12 UTC 2018 x86_64
Boilerplate: All mail to my mailbox is automatically deleted.
There is no point trying to privately email me, I only get to see
the messages posted to the mailing list.
Windows tablets are more like suppositories.
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