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I upgraded my system yesterday.
After reboot, I got a black screen.
Now, I use the startx to start kde.
And my logs are below.
systemctl status sddm.service
● sddm.service - Simple Desktop Display Manager
Loaded: loaded (/usr/lib/systemd/system/sddm.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2017-04-24 10:00:57 CST; 3min 48s ago
Docs: man:sddm(1)
man:sddm.conf(5)
Main PID: 642 (sddm)
Tasks: 7 (limit: 4915)
CGroup: /system.slice/sddm.service
├─642 /usr/bin/sddm
└─733 /usr/lib/xorg-server/Xorg -nolisten tcp -auth /var/run/sddm/{b18da9c3-1f59-41c7-965d-41ab23c20748} -background none -noreset -displayfd 18 vt1
Apr 24 10:00:58 arch_me sddm[642]: Greeter starting...
Apr 24 10:00:58 arch_me sddm[642]: Adding cookie to "/var/run/sddm/{b18da9c3-1f59-41c7-965d-41ab23c20748}"
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] Starting...
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] Authenticating...
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] returning.
Apr 24 10:00:58 arch_me sddm-helper[854]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Apr 24 10:00:58 arch_me sddm[642]: Greeter session started successfully
Apr 24 10:00:58 arch_me sddm[642]: Message received from greeter: Connect
Apr 24 10:00:58 arch_me sddm[642]: Auth: sddm-helper exited with 7
Apr 24 10:00:58 arch_me sddm[642]: Greeter stopped.journalctl -b | grep sddm
Apr 24 10:00:57 arch_me sddm[642]: Initializing...
Apr 24 10:00:57 arch_me sddm[642]: Starting...
Apr 24 10:00:57 arch_me sddm[642]: Adding new display on vt 1 ...
Apr 24 10:00:57 arch_me sddm[642]: Display server starting...
Apr 24 10:00:57 arch_me sddm[642]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{b18da9c3-1f59-41c7-965d-41ab23c20748} -background none -noreset -displayfd 18 vt1
Apr 24 10:00:58 arch_me sddm[642]: Running display setup script "/usr/share/sddm/scripts/Xsetup"
Apr 24 10:00:58 arch_me sddm[642]: Display server started.
Apr 24 10:00:58 arch_me sddm[642]: Socket server starting...
Apr 24 10:00:58 arch_me sddm[642]: Socket server started.
Apr 24 10:00:58 arch_me sddm[642]: Greeter starting...
Apr 24 10:00:58 arch_me sddm[642]: Adding cookie to "/var/run/sddm/{b18da9c3-1f59-41c7-965d-41ab23c20748}"
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] Starting...
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] Authenticating...
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] returning.
Apr 24 10:00:58 arch_me sddm-helper[854]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Apr 24 10:00:58 arch_me systemd[1]: Created slice User Slice of sddm.
Apr 24 10:00:58 arch_me systemd-logind[617]: New session c1 of user sddm.
Apr 24 10:00:58 arch_me systemd[1]: Started Session c1 of user sddm.
Apr 24 10:00:58 arch_me systemd[877]: pam_unix(systemd-user:session): session opened for user sddm by (uid=0)
Apr 24 10:00:58 arch_me sddm[642]: Greeter session started successfully
Apr 24 10:00:58 arch_me sddm-greeter[908]: Reading from "/usr/share/xsessions/plasma-mediacenter.desktop"
Apr 24 10:00:58 arch_me sddm-greeter[908]: Reading from "/usr/share/xsessions/plasma.desktop"
Apr 24 10:00:58 arch_me sddm-greeter[908]: inotify_add_watch("/usr/share/wayland-sessions") failed: "No such file or directory"
Apr 24 10:00:58 arch_me sddm-greeter[908]: Connected to the daemon.
Apr 24 10:00:58 arch_me sddm[642]: Message received from greeter: Connect
Apr 24 10:00:58 arch_me sddm-greeter[908]: Loading qrc:/theme/Main.qml...
Apr 24 10:00:58 arch_me sddm-greeter[908]: Adding view for "eDP1" QRect(0,0 1920x1080)
Apr 24 10:00:58 arch_me sddm-greeter[908]: Message received from daemon: Capabilities
Apr 24 10:00:58 arch_me sddm-greeter[908]: Message received from daemon: HostName
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] Closing session
Apr 24 10:00:58 arch_me sddm-helper[854]: pam_unix(sddm-greeter:session): session closed for user sddm
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] Ended.
Apr 24 10:00:58 arch_me sddm[642]: Auth: sddm-helper exited with 7
Apr 24 10:00:58 arch_me sddm[642]: Greeter stopped.
Apr 24 10:00:58 arch_me systemd[888]: pam_unix(systemd-user:session): session closed for user sddm
Apr 24 10:00:58 arch_me systemd[1]: Removed slice User Slice of sddm.
Apr 24 10:00:58 arch_me systemd-coredump[990]: Process 908 (sddm-greeter) of user 995 dumped core.
#29 0x000000000041629f main (sddm-greeter)
#31 0x00000000004163ca _start (sddm-greeter)pacman.log
[2017-04-23 22:44] [PACMAN] Running 'pacman --color auto -Sy'
[2017-04-23 22:44] [PACMAN] synchronizing package lists
[2017-04-23 23:03] [PACMAN] Running 'pacman --color auto -S -u'
[2017-04-23 23:03] [PACMAN] starting full system upgrade
[2017-04-23 23:40] [ALPM] transaction started
[2017-04-23 23:40] [ALPM] upgraded accountsservice (0.6.43-1 -> 0.6.45-1)
[2017-04-23 23:40] [ALPM] upgraded libxml2 (2.9.4+12+ge905f081-5 -> 2.9.4+16+g07418011-1)
[2017-04-23 23:40] [ALPM] upgraded udisks2 (2.1.8-1 -> 2.6.4-1)
[2017-04-23 23:40] [ALPM] upgraded akonadi (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kmime (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded akonadi-mime (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kmailtransport (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kcalcore (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kpimtextedit (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kidentitymanagement (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kcalutils (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kcontacts (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded akonadi-contacts (16.12.3-1 -> 17.04.0-2)
[2017-04-23 23:40] [ALPM] upgraded akonadi-calendar (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded akonadi-notes (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded akonadi-search (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kontactinterface (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded libkleo (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kldap (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded libkdepim (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kimap (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded pimcommon (16.12.3-1 -> 17.04.0-2)
[2017-04-23 23:40] [ALPM] upgraded grantleetheme (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kdepim-apps-libs (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded libgravatar (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kmbox (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded messagelib (16.12.3-1 -> 17.04.0-2)
[2017-04-23 23:40] [ALPM] upgraded kde-syndication (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded akregator (16.12.3-1 -> 17.04.0-2)
[2017-04-23 23:40] [ALPM] upgraded ark (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded baloo-widgets (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kholidays (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded calendarsupport (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kio-extras (16.12.3-1 -> 17.04.0-2)
[2017-04-23 23:40] [ALPM] upgraded dolphin (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded eclipse-common (4.6.2-2 -> 4.6.3-1)
[2017-04-23 23:40] [ALPM] upgraded eclipse-java (4.6.2-2 -> 4.6.3-1)
[2017-04-23 23:40] [ALPM] upgraded eventviews (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded fcitx-libpinyin (0.5.1-1 -> 0.5.1-2)
[2017-04-23 23:40] [ALPM] upgraded filelight (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded libkipi (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded libkdcraw (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded gwenview (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded incidenceeditor (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded signon-kwallet-extension (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kaccounts-integration (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:40] [ALPM] upgraded kalarmcal (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded kdelibs (4.14.30-1 -> 4.14.31-1)
[2017-04-23 23:41] [ALPM] upgraded kdebase-runtime (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded libkgapi (5.3.1-2 -> 17.04.0-2)
[2017-04-23 23:41] [ALPM] installed kdav (17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded kdepim-runtime (16.12.3-1 -> 17.04.0-3)
[2017-04-23 23:41] [ALPM] upgraded khelpcenter (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded konsole (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded marble-data (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded marble-common (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded libkgeomap (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded libktnef (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded mailimporter (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded mailcommon (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded ruby (2.4.0-1 -> 2.4.1-2)
[2017-04-23 23:41] [ALPM] upgraded spectacle (16.12.3-1 -> 17.04.0-1)
[2017-04-23 23:41] [ALPM] upgraded thunderbird (52.0-2 -> 52.0.1-1)
[2017-04-23 23:41] [ALPM] upgraded wiznote (2.5.0.20161213-1 -> 2.5.0.20161213-2)
[2017-04-23 23:41] [ALPM] upgraded xf86-video-intel (1:2.99.917+770+gcb6ba2da-1 -> 1:2.99.917+772+gc72bb27a-1)
[2017-04-23 23:41] [ALPM] transaction completed
[2017-04-23 23:41] [ALPM] running 'gtk-update-icon-cache.hook'...
[2017-04-23 23:41] [ALPM] running 'systemd-update.hook'...
[2017-04-23 23:41] [ALPM] running 'update-desktop-database.hook'...
[2017-04-23 23:41] [ALPM] running 'update-mime-database.hook'...
[2017-04-23 23:41] [ALPM-SCRIPTLET] Unknown media type in type 'all/all'
[2017-04-23 23:41] [ALPM-SCRIPTLET] Unknown media type in type 'all/allfiles'
[2017-04-24 00:07] [PACMAN] Running 'pacman -Rs qca-qt4'
[2017-04-24 00:07] [ALPM] transaction started
[2017-04-24 00:07] [ALPM] removed qca-qt4 (2.1.3-1)
[2017-04-24 00:07] [ALPM] transaction completed
[2017-04-24 00:07] [ALPM] running 'systemd-update.hook'...journalctl -u sddm.service
Apr 24 01:02:54 arch_me systemd[1]: Started Simple Desktop Display Manager.
Apr 24 01:02:54 arch_me sddm[604]: Initializing...
Apr 24 01:02:54 arch_me sddm[604]: Starting...
Apr 24 01:02:54 arch_me sddm[604]: Adding new display on vt 1 ...
Apr 24 01:02:54 arch_me sddm[604]: Display server starting...
Apr 24 01:02:54 arch_me sddm[604]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{97defd4c-aa5a-40ad-8e74-3e0aedfe7287} -background none -noreset -displayfd 18 vt1
Apr 24 01:02:54 arch_me sddm[604]: Running display setup script "/usr/share/sddm/scripts/Xsetup"
Apr 24 01:02:54 arch_me sddm[604]: Display server started.
Apr 24 01:02:54 arch_me sddm[604]: Socket server starting...
Apr 24 01:02:54 arch_me sddm[604]: Socket server started.
Apr 24 01:02:54 arch_me sddm[604]: Greeter starting...
Apr 24 01:02:54 arch_me sddm[604]: Adding cookie to "/var/run/sddm/{97defd4c-aa5a-40ad-8e74-3e0aedfe7287}"
Apr 24 01:02:54 arch_me sddm-helper[836]: [PAM] Starting...
Apr 24 01:02:54 arch_me sddm-helper[836]: [PAM] Authenticating...
Apr 24 01:02:54 arch_me sddm-helper[836]: [PAM] returning.
Apr 24 01:02:54 arch_me sddm-helper[836]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Apr 24 01:02:54 arch_me sddm[604]: Greeter session started successfully
Apr 24 01:02:54 arch_me sddm[604]: Message received from greeter: Connect
Apr 24 01:02:55 arch_me sddm[604]: Auth: sddm-helper exited with 7
Apr 24 01:02:55 arch_me sddm[604]: Greeter stopped.
Apr 24 01:12:16 arch_me systemd[1]: Stopping Simple Desktop Display Manager...
Apr 24 01:12:16 arch_me sddm[604]: Signal received: SIGTERM
Apr 24 01:12:16 arch_me sddm[604]: Socket server stopping...
Apr 24 01:12:16 arch_me sddm[604]: Socket server stopped.
Apr 24 01:12:16 arch_me sddm[604]: Display server stopping...
Apr 24 01:12:21 arch_me sddm[604]: Display server stopping...
Apr 24 01:12:21 arch_me sddm[604]: Display server stopped.
Apr 24 01:12:21 arch_me sddm[604]: Running display stop script "/usr/share/sddm/scripts/Xstop"
Apr 24 01:12:21 arch_me systemd[1]: Stopped Simple Desktop Display Manager.
-- Reboot --
Apr 24 01:14:32 arch_me systemd[1]: Started Simple Desktop Display Manager.
Apr 24 01:14:32 arch_me sddm[694]: Initializing...
Apr 24 01:14:32 arch_me sddm[694]: Starting...
Apr 24 01:14:32 arch_me sddm[694]: Adding new display on vt 1 ...
Apr 24 01:14:32 arch_me sddm[694]: Display server starting...
Apr 24 01:14:32 arch_me sddm[694]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{73b0bf5d-e5a6-4a90-978d-a7b20fdf9fcf} -background none -noreset -displayfd 18 vt1
Apr 24 01:14:33 arch_me sddm[694]: Running display setup script "/usr/share/sddm/scripts/Xsetup"
Apr 24 01:14:33 arch_me sddm[694]: Display server started.
Apr 24 01:14:33 arch_me sddm[694]: Socket server starting...
Apr 24 01:14:33 arch_me sddm[694]: Socket server started.
Apr 24 01:14:33 arch_me sddm[694]: Greeter starting...
Apr 24 01:14:33 arch_me sddm[694]: Adding cookie to "/var/run/sddm/{73b0bf5d-e5a6-4a90-978d-a7b20fdf9fcf}"
Apr 24 01:14:33 arch_me sddm-helper[860]: [PAM] Starting...
Apr 24 01:14:33 arch_me sddm-helper[860]: [PAM] Authenticating...
Apr 24 01:14:33 arch_me sddm-helper[860]: [PAM] returning.
Apr 24 01:14:33 arch_me sddm-helper[860]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Apr 24 01:14:33 arch_me sddm[694]: Greeter session started successfully
Apr 24 01:14:33 arch_me sddm[694]: Message received from greeter: Connect
Apr 24 01:14:33 arch_me sddm[694]: Auth: sddm-helper exited with 7
Apr 24 01:14:33 arch_me sddm[694]: Greeter stopped.
Apr 24 01:16:36 arch_me systemd[1]: Stopping Simple Desktop Display Manager...
Apr 24 01:16:36 arch_me sddm[694]: Signal received: SIGTERM
Apr 24 01:16:36 arch_me sddm[694]: Socket server stopping...
Apr 24 01:16:36 arch_me sddm[694]: Socket server stopped.
Apr 24 01:16:36 arch_me sddm[694]: Display server stopping...
Apr 24 01:16:41 arch_me sddm[694]: Display server stopping...
Apr 24 01:16:41 arch_me sddm[694]: Display server stopped.
Apr 24 01:16:41 arch_me sddm[694]: Running display stop script "/usr/share/sddm/scripts/Xstop"
Apr 24 01:16:41 arch_me systemd[1]: Stopped Simple Desktop Display Manager.
-- Reboot --
Apr 24 10:00:57 arch_me systemd[1]: Started Simple Desktop Display Manager.
Apr 24 10:00:57 arch_me sddm[642]: Initializing...
Apr 24 10:00:57 arch_me sddm[642]: Starting...
Apr 24 10:00:57 arch_me sddm[642]: Adding new display on vt 1 ...
Apr 24 10:00:57 arch_me sddm[642]: Display server starting...
Apr 24 10:00:57 arch_me sddm[642]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{b18da9c3-1f59-41c7-965d-41ab23c20748} -background none -noreset -displayfd 18 vt1
Apr 24 10:00:58 arch_me sddm[642]: Running display setup script "/usr/share/sddm/scripts/Xsetup"
Apr 24 10:00:58 arch_me sddm[642]: Display server started.
Apr 24 10:00:58 arch_me sddm[642]: Socket server starting...
Apr 24 10:00:58 arch_me sddm[642]: Socket server started.
Apr 24 10:00:58 arch_me sddm[642]: Greeter starting...
Apr 24 10:00:58 arch_me sddm[642]: Adding cookie to "/var/run/sddm/{b18da9c3-1f59-41c7-965d-41ab23c20748}"
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] Starting...
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] Authenticating...
Apr 24 10:00:58 arch_me sddm-helper[854]: [PAM] returning.
Apr 24 10:00:58 arch_me sddm-helper[854]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Apr 24 10:00:58 arch_me sddm[642]: Greeter session started successfully
Apr 24 10:00:58 arch_me sddm[642]: Message received from greeter: Connect
Apr 24 10:00:58 arch_me sddm[642]: Auth: sddm-helper exited with 7
Apr 24 10:00:58 arch_me sddm[642]: Greeter stopped.I have try the https://bugzilla.redhat.com/show_bug.cgi?id=1350107 and it's useless.
Last edited by rrenn (2017-04-25 16:37:45)
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Have you tried to clean the qt cached code ?
Earlier: SDDM-greeter issue - https://bbs.archlinux.org/viewtopic.php?id=216223
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@Rog131
I have try to clean the cache, but it's no use.
Anyway,thanks for your advice.
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I solve this problem.
The /var is full.
After Cleaning the package cache, everything is ok.
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