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mike.fly
n00b
Joined: 26 Nov 2015
Posts: 2
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 Posted: Thu Nov 26, 2015 7:30 am Post subject: [SOLVED] SDDM black screen |
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Hello, I have problem with sddm after update system. Sddm on vt7 create black screen with no blinking cursor on top-left corner. Startx working fine. If I run sddm as root from console, it gives
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/usr/bin/xauth: (stdin):1: bad "remove" command line
/usr/bin/xauth: (stdin):2: bad "add" command line
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If I run sddm via /etc/init.d/xdm, there is no error message.
I also cannot find any error in logs.
Last edited by mike.fly on Thu Dec 03, 2015 9:53 am; edited 1 time in total |
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arcticwolf
n00b
Joined: 05 Mar 2012
Posts: 2
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| Posted: Mon Nov 30, 2015 5:41 pm Post subject: |
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I had the same issue and the following directory did not exist
/var/lib/sddm
After creating this the problem went away.
John.
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Romanujan
n00b
Joined: 19 Jan 2005
Posts: 31
Location: Poland
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| Posted: Tue Dec 01, 2015 4:20 pm Post subject: |
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Similar issue here, but starting sddm from the console also results in black screen, and creating /var/lib/sddm directory did not help. However, by calling
journalctl -b | grep 'sddm'
I got:
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Dec 01 17:06:15 carillon sddm[555]: Initializing...
Dec 01 17:06:15 carillon sddm[555]: Starting...
Dec 01 17:06:15 carillon sddm[555]: Adding new display on vt 1 ...
Dec 01 17:06:15 carillon sddm[555]: Display server starting...
Dec 01 17:06:15 carillon sddm[555]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{d582b0b5-fb11-4755-a509-47f6893dbb91} -background none -noreset -displayfd 17 vt1
Dec 01 17:06:16 carillon sddm[555]: Running display setup script "/usr/share/sddm/scripts/Xsetup"
Dec 01 17:06:16 carillon sddm[555]: Display server started.
Dec 01 17:06:16 carillon sddm[555]: Socket server starting...
Dec 01 17:06:16 carillon sddm[555]: Socket server started.
Dec 01 17:06:16 carillon sddm[555]: Greeter starting...
Dec 01 17:06:16 carillon sddm[555]: Adding cookie to "/var/run/sddm/{d582b0b5-fb11-4755-a509-47f6893dbb91}"
Dec 01 17:06:16 carillon sddm-helper[571]: [PAM] Starting...
Dec 01 17:06:16 carillon sddm-helper[571]: [PAM] Authenticating...
Dec 01 17:06:16 carillon sddm-helper[571]: [PAM] returning.
Dec 01 17:06:16 carillon sddm-helper[571]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Dec 01 17:06:16 carillon systemd-logind[542]: New session c1 of user sddm.
Dec 01 17:06:16 carillon systemd[573]: pam_unix(systemd-user:session): session opened for user sddm by (uid=0)
Dec 01 17:06:16 carillon sddm[555]: Greeter session started successfully
Dec 01 17:06:16 carillon sddm-greeter[576]: Reading from "/usr/share/xsessions/kodi.desktop"
Dec 01 17:06:16 carillon sddm-greeter[576]: Reading from "/usr/share/xsessions/plasma-mediacenter.desktop"
Dec 01 17:06:16 carillon sddm-greeter[576]: Reading from "/usr/share/xsessions/plasma.desktop"
Dec 01 17:06:16 carillon sddm-greeter[576]: Reading from "/usr/share/xsessions/xbmc.desktop"
Dec 01 17:06:16 carillon sddm-greeter[576]: Reading from "/usr/share/xsessions/Xsession.desktop"
Dec 01 17:06:16 carillon sddm-greeter[576]: Connected to the daemon.
Dec 01 17:06:16 carillon sddm[555]: Message received from greeter: Connect
Dec 01 17:06:16 carillon sddm-greeter[576]: Adding view for "HDMI-0" QRect(0,0 1920x1080)
Dec 01 17:06:16 carillon sddm-greeter[576]: XmbTextListToTextProperty result code -2
Dec 01 17:06:16 carillon sddm-greeter[576]: Message received from daemon: Capabilities
Dec 01 17:06:16 carillon sddm-greeter[576]: Message received from daemon: HostName
Dec 01 17:06:16 carillon sddm-greeter[576]: Failed to create OpenGL context for format QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 24, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 8, samples -1, swapBehavior 2, swapInterval 1, profile 0)
Dec 01 17:06:16 carillon sddm-helper[571]: [PAM] Ended.
Dec 01 17:06:16 carillon sddm[555]: Auth: sddm-helper exited with 6
Dec 01 17:06:16 carillon sddm[555]: Greeter stopped.
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"Failed to create OpenGL context for format QSurfaceFormat" - what can this mean? Also, switching opengl using eselect from nvidia (I now have nvidia-drivers-358.13, but downgrading to 355.11-r2 does not help) to x11 I can start the desktop (although it works really slow without the acceleration). |
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asturm
Developer
Joined: 05 Apr 2007
Posts: 8935
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| Posted: Tue Dec 01, 2015 7:59 pm Post subject: |
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| Add sddm user to the video group. |
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Romanujan
n00b
Joined: 19 Jan 2005
Posts: 31
Location: Poland
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| Posted: Tue Dec 01, 2015 8:22 pm Post subject: |
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| It worked - thank you! |
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soren.harward
n00b
Joined: 23 Jun 2003
Posts: 11
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| Posted: Tue Dec 01, 2015 10:26 pm Post subject: |
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| Romanujan wrote: | | It worked - thank you! |
I had the same problem, and fixed it by enabling the egl and gles2 USE flags, and running "emerge ... --changed-use". This is probably the better fix, because GLX is eventually going to be phased out of Plasma/KWin5 in favor of EGL/GLES2. |
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Romanujan
n00b
Joined: 19 Jan 2005
Posts: 31
Location: Poland
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| Posted: Wed Dec 02, 2015 8:00 pm Post subject: |
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| I have also tried this, but it didn't help me so I went back to old use flags. On the other side, I think I didn't have the directory mentioned here back then (I am not sure now). |
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mike.fly
n00b
Joined: 26 Nov 2015
Posts: 2
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| Posted: Thu Dec 03, 2015 9:52 am Post subject: |
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| I can confirm, that adding of sddm user to video group solved the issue for me. Thank you. |
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GenProm
Tux's lil' helper
Joined: 18 Aug 2011
Posts: 100
Location: Germany
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| Posted: Fri Dec 04, 2015 4:32 pm Post subject: |
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Hello fellow Forum users,
I have the same problem after upgrading to Xorg Server 1.17.4 and sddm to 0.13.0-r1
I have the folder in var. For now i did not try the use flags.
I have two users on my machine, root and myself, both are members of the video group.
However problem is still there.
Is there a hidden user sddm ? How can i find out about those or do i get on the wrong trek there??
Thanks
EDIT: After reading carefully, i got the solution, adding user sddm to video 
Thanks again
_________________
Thank you for your help.
Manuel |
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micbil
n00b
Joined: 10 Oct 2016
Posts: 1
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| Posted: Mon Oct 10, 2016 2:35 pm Post subject: |
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| arcticwolf wrote: | I had the same issue and the following directory did not exist
/var/lib/sddm
After creating this the problem went away.
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I had a similar problem out here using Ubuntu 16.04. This solution worked also for me . |
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depontius
Advocate
Joined: 05 May 2004
Posts: 3509
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| Posted: Fri Apr 28, 2017 8:44 pm Post subject: |
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This problem suddenly showed up for me a week or two back. I found this thread, nothing of which applied. Then I looked in /var/lib/sddm and found a file, "state.conf" that was owned by root. I changed the owner to "sddm", restarted xdm, and sddm worked.
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.sigs waste space and bandwidth |
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brendlefly62
Tux's lil' helper
Joined: 19 Dec 2009
Posts: 133
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| Posted: Thu Nov 02, 2017 11:59 am Post subject: |
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I had similar symptoms (with sddm) this week. The directory /var/lib/sddm already existed and contained a .conf file and four hidden directories. I ran | Code: | rm -r /var/lib/sddm/*
/etc/init.d/xdm start |
and it worked fine again afterward. (I suspect a setting in one of the hidden directories) |
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Decibels
Veteran
Joined: 16 Aug 2002
Posts: 1623
Location: U.S.A.
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| Posted: Sun Dec 22, 2019 10:22 pm Post subject: |
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Weird that this is still cropping up. Mine might be different problem. Checked and my sddm user is in the video group, and has been for long time. This has been happening to me once in a while these last few months. Reboot and comes up fine.
Saw the /var/lib/sddm/* problem in Xorg.0.log file since yakuake was functioning fine. But at this particular time the file was there. Wonder if it just isn't being created in time? More of a nuisance since reboot works, but still wish knew what was causing it.
Might try remerging sddm-kcm, sddm and xdm.
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Support bacteria – they’re the only culture some people have.”
– Steven Wright |
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hujuice
Guru
Joined: 16 Oct 2007
Posts: 336
Location: Rome, Italy
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| Posted: Thu Jan 14, 2021 8:16 am Post subject: |
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Same problem here, with some more details.
/var/lib/sddm was there, but /var/lib/sddm/state.conf was owned by root.
The solution has been:
| Code: | | chown sddm: /var/lib/sddm/state.conf |
Regards,
HUjuice
_________________
Who hasn't a spine, should have a method.
Chi non ha carattere, deve pur avere un metodo. |
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