https://bugs.kde.org/show_bug.cgi?id=408561
Bug ID: 408561
Summary: Unable to switch user or log in as hidden user,
sddm-greeter crashes
Product: kscreenlocker
Version: unspecified
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: greeter
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
SUMMARY
Selecting "Diffrent user" or trying to switch user when logged in results in
black screen with pointer only.
STEPS TO REPRODUCE
1. Log in
2. Leave
3. Switch user
or
1. Select "Diffrent user" from from log in scerren
OBSERVED RESULT
sddm-greeter crash ...
black screen with pointer only
EXPECTED RESULT
Input fields etc..
SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.15
KDE Plasma Version: 5.15.5
KDE Frameworks Version: 5.59.0
Qt Version: 5.12.3
Kernel Version: 4.18.0-21-generic
OS Type: 64-bit
Processors: 12 × Intel® Core™ i7-3930K CPU @ 3.20GHz
Memory: 31,3 GiB of RAM
ADDITIONAL INFORMATION
Logs:
journalctl --system --since 2019-06-11 -u sddm -u systemd-logind
jun 11 12:27:32 Aurora-R4 systemd-logind[972]: Removed session 13.
jun 11 12:31:12 Aurora-R4 sddm[1051]: Adding new display on vt 2 ...
jun 11 12:31:12 Aurora-R4 sddm[1051]: Loading theme configuration from ""
jun 11 12:31:12 Aurora-R4 sddm[1051]: Display server starting...
jun 11 12:31:12 Aurora-R4 sddm[1051]: Running: /usr/bin/X -nolisten tcp -auth
/var/run/sddm/{25f402eb-0dbc-404e-a168-8b49c7e82053} -background none -noreset
-displayfd 18 -seat s
jun 11 12:31:13 Aurora-R4 sddm[1051]: Setting default cursor
jun 11 12:31:13 Aurora-R4 sddm[1051]: Running display setup script
"/usr/share/sddm/scripts/Xsetup"
jun 11 12:31:13 Aurora-R4 sddm[1051]: Display server started.
jun 11 12:31:13 Aurora-R4 sddm[1051]: Socket server starting...
jun 11 12:31:13 Aurora-R4 sddm[1051]: Socket server started.
jun 11 12:31:13 Aurora-R4 sddm[1051]: Loading theme configuration from
"/usr/share/sddm/themes/breeze/theme.conf"
jun 11 12:31:13 Aurora-R4 sddm[1051]: Greeter starting...
jun 11 12:31:13 Aurora-R4 sddm[1051]: Adding cookie to
"/var/run/sddm/{25f402eb-0dbc-404e-a168-8b49c7e82053}"
jun 11 12:31:13 Aurora-R4 sddm-helper[14216]: [PAM] Starting...
jun 11 12:31:13 Aurora-R4 sddm-helper[14216]: [PAM] Authenticating...
jun 11 12:31:13 Aurora-R4 sddm-helper[14216]: [PAM] returning.
jun 11 12:31:13 Aurora-R4 sddm-helper[14216]: pam_unix(sddm-greeter:session):
session opened for user sddm by (uid=0)
jun 11 12:31:13 Aurora-R4 systemd-logind[972]: New session 17 of user sddm.
jun 11 12:31:13 Aurora-R4 sddm[1051]: Greeter session started successfully
jun 11 12:31:13 Aurora-R4 sddm[1051]: Message received from greeter: Connect
jun 11 12:31:16 Aurora-R4 sddm[1051]: Auth: sddm-helper exited with 11
jun 11 12:31:16 Aurora-R4 sddm[1051]: Greeter stopped.
jun 11 12:31:16 Aurora-R4 systemd-logind[972]: Removed session 17.
dmesg
[10180.502022] perf: interrupt took too long (2504 > 2500), lowering
kernel.perf_event_max_sample_rate to 79750
[12852.676122] radeon_dp_aux_transfer_native: 158 callbacks suppressed
[12861.196030] radeon_dp_aux_transfer_native: 158 callbacks suppressed
[13080.860108] radeon_dp_aux_transfer_native: 158 callbacks suppressed
[13084.755857] show_signal_msg: 17 callbacks suppressed
[13084.755860] sddm-greeter[14230]: segfault at 4 ip 00007fd8f6e70f8b sp
00007ffe6ab50d30 error 4 in libQt5Qml.so.5.12.3[7fd8f6cb1000+480000]
[13084.755864] Code: c0 e9 65 fb ff ff 90 0f 1f 84 00 00 00 00 00 41 57 41 56
41 55 41 54 49 89 fc 55 53 48 89 f5 48 89 d3 48 83 ec 18 48 8b 45 08 <0f> bf 72
04 f6 40 20 0c 75 4b 83 fe ff 48 8b 78 60 74 42 48 85 ff
[13105.012094] radeon_dp_aux_transfer_native: 158 callbacks suppressed
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