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PopeRigby

Member

Registered: 2019-10-19

Posts: 110

[SOLVED] SDDM fails to start after GPU upgrade

I recently upgraded my GPU from a GTX 1060 6GB to a RX 5700 XT. After I installed the GPU, I rebooted and systemd hangs at

[  OK  ] Reached target Graphical Interface.

I checked the status of sddm.service, and it says this:

● sddm.service - Simple Desktop Display Manager
     Loaded: loaded (/usr/lib/systemd/system/sddm.service; enabled; vendor pres>
     Active: failed (Result: core-dump) since Wed 2020-03-11 19:33:29 PDT; 8min>
       Docs: man:sddm(1)
             man:sddm.conf(5)
    Process: 577 ExecStart=/usr/bin/sddm (code=dumped, signal=ABRT)
   Main PID: 577 (code=dumped, signal=ABRT)

Mar 11 19:33:29 snowy systemd[1]: sddm.service: Scheduled restart job, restart >
Mar 11 19:33:29 snowy systemd[1]: Stopped Simple Desktop Display Manager.
Mar 11 19:33:29 snowy systemd[1]: sddm.service: Start request repeated too quic>
Mar 11 19:33:29 snowy systemd[1]: sddm.service: Failed with result 'core-dump'.
Mar 11 19:33:29 snowy systemd[1]: Failed to start Simple Desktop Display Manager

I tried looking up all those errors, but that didn't turn anything useful up. So I decided to look in the systemd journal. That gave me this:

Mar 11 19:33:26 snowy systemd[1]: Started Simple Desktop Display Manager.
Mar 11 19:33:26 snowy sddm[529]: Initializing...
Mar 11 19:33:26 snowy sddm[529]: Starting...
Mar 11 19:33:26 snowy sddm[529]: Logind interface found
Mar 11 19:33:26 snowy sddm[529]: Adding new display on vt 1 ...
Mar 11 19:33:26 snowy sddm[529]: Loading theme configuration from ""
Mar 11 19:33:26 snowy sddm[529]: Display server starting...
Mar 11 19:33:26 snowy sddm[529]: Running: /usr/bin/X -nolisten tcp -auth /var/r>
Mar 11 19:33:26 snowy sddm[529]: Failed to read display number from pipe
Mar 11 19:33:26 snowy sddm[529]: Display server failed to start. Exiting
Mar 11 19:33:26 snowy systemd[1]: sddm.service: Main process exited, code=dumpe>
Mar 11 19:33:26 snowy systemd[1]: sddm.service: Failed with result 'core-dump'.
Mar 11 19:33:26 snowy systemd[1]: sddm.service: Scheduled restart job, restart >
Mar 11 19:33:26 snowy systemd[1]: Stopped Simple Desktop Display Manager.
Mar 11 19:33:26 snowy systemd[1]: Started Simple Desktop Display Manager.
Mar 11 19:33:26 snowy sddm[540]: Initializing...
Mar 11 19:33:26 snowy sddm[540]: Starting...
Mar 11 19:33:26 snowy sddm[540]: Logind interface found
Mar 11 19:33:26 snowy sddm[540]: Adding new display on vt 1 ...
Mar 11 19:33:26 snowy sddm[540]: Loading theme configuration from ""
Mar 11 19:33:26 snowy sddm[540]: Display server starting...
Mar 11 19:33:26 snowy sddm[540]: Running: /usr/bin/X -nolisten tcp -auth /var/r>
Mar 11 19:33:26 snowy sddm[540]: Failed to read display number from pipe
Mar 11 19:33:26 snowy sddm[540]: Display server failed to start. Exiting
Mar 11 19:33:27 snowy systemd[1]: sddm.service: Main process exited, code=dumpe>
Mar 11 19:33:27 snowy systemd[1]: sddm.service: Failed with result 'core-dump'.
Mar 11 19:33:27 snowy systemd[1]: sddm.service: Scheduled restart job, restart >
Mar 11 19:33:27 snowy systemd[1]: Stopped Simple Desktop Display Manager.
Mar 11 19:33:27 snowy systemd[1]: Started Simple Desktop Display Manager.
Mar 11 19:33:27 snowy sddm[553]: Initializing...
Mar 11 19:33:27 snowy sddm[553]: Starting...
Mar 11 19:33:27 snowy sddm[553]: Logind interface found
Mar 11 19:33:27 snowy sddm[553]: Adding new display on vt 1 ...
Mar 11 19:33:27 snowy sddm[553]: Loading theme configuration from ""
Mar 11 19:33:27 snowy sddm[553]: Display server starting...
Mar 11 19:33:27 snowy sddm[553]: Running: /usr/bin/X -nolisten tcp -auth /var/r>
Mar 11 19:33:27 snowy sddm[553]: Failed to read display number from pipe
Mar 11 19:33:27 snowy sddm[553]: Display server failed to start. Exiting
Mar 11 19:33:27 snowy systemd[1]: sddm.service: Main process exited, code=dumpe>
Mar 11 19:33:27 snowy systemd[1]: sddm.service: Failed with result 'core-dump'.
Mar 11 19:33:28 snowy systemd[1]: sddm.service: Scheduled restart job, restart >
Mar 11 19:33:28 snowy systemd[1]: Stopped Simple Desktop Display Manager.
Mar 11 19:33:28 snowy systemd[1]: Started Simple Desktop Display Manager.
Mar 11 19:33:28 snowy sddm[566]: Initializing...
Mar 11 19:33:28 snowy sddm[566]: Starting...
Mar 11 19:33:28 snowy sddm[566]: Logind interface found
Mar 11 19:33:28 snowy sddm[566]: Adding new display on vt 1 ...
Mar 11 19:33:28 snowy sddm[566]: Loading theme configuration from ""
Mar 11 19:33:28 snowy sddm[566]: Display server starting...
Mar 11 19:33:28 snowy sddm[566]: Running: /usr/bin/X -nolisten tcp -auth /var/r>
Mar 11 19:33:28 snowy sddm[566]: Failed to read display number from pipe
Mar 11 19:33:28 snowy sddm[566]: Display server failed to start. Exiting
Mar 11 19:33:28 snowy systemd[1]: sddm.service: Main process exited, code=dumpe>
Mar 11 19:33:28 snowy systemd[1]: sddm.service: Failed with result 'core-dump'.
Mar 11 19:33:28 snowy systemd[1]: sddm.service: Scheduled restart job, restart >
Mar 11 19:33:28 snowy systemd[1]: Stopped Simple Desktop Display Manager.
Mar 11 19:33:28 snowy systemd[1]: Started Simple Desktop Display Manager.
Mar 11 19:33:28 snowy sddm[577]: Initializing...
Mar 11 19:33:28 snowy sddm[577]: Starting...
Mar 11 19:33:28 snowy sddm[577]: Logind interface found
Mar 11 19:33:28 snowy sddm[577]: Adding new display on vt 1 ...
Mar 11 19:33:28 snowy sddm[577]: Loading theme configuration from ""
Mar 11 19:33:28 snowy sddm[577]: Display server starting...
Mar 11 19:33:28 snowy sddm[577]: Running: /usr/bin/X -nolisten tcp -auth /var/r>
Mar 11 19:33:29 snowy sddm[577]: Failed to read display number from pipe
Mar 11 19:33:29 snowy sddm[577]: Display server failed to start. Exiting
Mar 11 19:33:29 snowy systemd[1]: sddm.service: Main process exited, code=dumpe>
Mar 11 19:33:29 snowy systemd[1]: sddm.service: Failed with result 'core-dump'.
Mar 11 19:33:29 snowy systemd[1]: sddm.service: Scheduled restart job, restart >
Mar 11 19:33:29 snowy systemd[1]: Stopped Simple Desktop Display Manager.
Mar 11 19:33:29 snowy systemd[1]: sddm.service: Start request repeated too quic>
Mar 11 19:33:29 snowy systemd[1]: sddm.service: Failed with result 'core-dump'.
Mar 11 19:33:29 snowy systemd[1]: Failed to start Simple Desktop Display Manager

Last edited by PopeRigby (2020-03-12 17:55:35)

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"I even found myself driving by convenience stores... that weren't on the way home."

Ropid

Member

Registered: 2015-03-09

Posts: 1,069

Re: [SOLVED] SDDM fails to start after GPU upgrade

Clean out your Xorg config files in /etc/X11/ and /etc/X11/xorg.conf.d/ to go back to the default state of the system.

Take a look at the Xorg log file to see what it has logged.

PopeRigby

Member

Registered: 2019-10-19

Posts: 110

Re: [SOLVED] SDDM fails to start after GPU upgrade

That worked, thanks!

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"I even found myself driving by convenience stores... that weren't on the way home."