After wm crash not able to login again (Hyprland)

[xVermillionx]

I have had this problem for a while, where if my wm crashes, in this case Hyprland, I am not able to login again.

/etc/lemurs/wayland/hyprland

#!/bin/sh
exec /usr/bin/Hyprland

I am not sure if it is a problem with Hyprland or in lemurs, and I also have not found signs of others with this problem.

What I do know is that in a tty I am able to restart Hyprland on a crash again.

[coastalwhite]

Heya! I think it crashing might be causing lemurs to think it never properly started.

Do you have a log (/var/log/lemurs.log) of that happening?

[Yohannnn]

I am also having this issue but its not only when it crashes its if I exit Hyprland at all I can't go back into it without rebooting. Also ik that Hyprland doesn't officially support display mangers so this could be a Hyprland bug but also I have heard that sddm works fine with Hyprland.
I have the lemurs.log file of this happening.
lemurs.log

[mxaddict]

Having the same issue, not when hyprland crashes, but when I logout via hyprctl dispatch exit which should close hyprland gracefully with exit status 0

/var/log/lemurs.client.log

terminate called after throwing an instance of 'std::runtime_error'
  what():  wlr_backend_autocreate() failed!

/var/log/lemurs.log

[2023-12-06T07:58:19Z INFO  lemurs] Main lemurs logger is running
[2023-12-06T07:58:19Z INFO  lemurs] Switching to tty 2
[2023-12-06T07:58:19Z INFO  lemurs] UI booted up
[2023-12-06T07:58:19Z WARN  lemurs::post_login] Failed to read from the X folder '/etc/lemurs/wms'
[2023-12-06T07:58:19Z INFO  lemurs::info_caching] Attempting to get a cached information from '/var/cache/lemurs'
[2023-12-06T07:58:19Z INFO  lemurs::info_caching] Read cache file and found environment 'Hyprland' and username 'mxaddict'
[2023-12-06T07:58:19Z INFO  lemurs::ui] Loading username 'mxaddict' from cache
[2023-12-06T07:58:19Z INFO  lemurs::ui] Loading environment 'Hyprland' from cache
[2023-12-06T07:58:23Z INFO  lemurs] Starting new session for 'mxaddict' in environment 'Wayland { script_path: "/etc/lemurs/wayland/Hyprland" }'
[2023-12-06T07:58:23Z INFO  lemurs::post_login::env_variables] Setting XDG Session Parameters
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'XDG_SESSION_CLASS' to 'user'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'XDG_SESSION_TYPE' to 'wayland'
[2023-12-06T07:58:23Z INFO  lemurs::post_login::env_variables] Clearing XDG preemptively to set later
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Preemptively removed environment variable 'XDG_SESSION_CLASS'
[2023-12-06T07:58:23Z INFO  lemurs::auth] Login attempt for 'mxaddict'
[2023-12-06T07:58:23Z INFO  lemurs::auth::pam] Started opening session
[2023-12-06T07:58:23Z INFO  lemurs::auth::pam] Gotten Authenticator
[2023-12-06T07:58:23Z INFO  lemurs::auth::pam] Got handler
[2023-12-06T07:58:23Z INFO  lemurs::auth::pam] Validated account
[2023-12-06T07:58:23Z INFO  lemurs::auth::pam] Opened session
[2023-12-06T07:58:23Z INFO  lemurs::ui] Setting cached information
[2023-12-06T07:58:23Z INFO  lemurs::info_caching] Attempting to set cache
[2023-12-06T07:58:23Z INFO  lemurs::info_caching] Successfully set username in cache file
[2023-12-06T07:58:23Z INFO  lemurs::post_login::env_variables] Setting XDG Seat Variables
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Skipped setting environment variable 'XDG_SEAT'. It was already set to 'seat0'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Skipped setting environment variable 'XDG_VTNR'. It was already set to '2'
[2023-12-06T07:58:23Z INFO  lemurs::post_login::env_variables] Setting XDG Session Variables
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Skipped setting environment variable 'XDG_RUNTIME_DIR'. It was already set to '/run/user/1000'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Skipped setting environment variable 'XDG_SESSION_ID'. It was already set to 'c2'
[2023-12-06T07:58:23Z INFO  lemurs::post_login::env_variables] Setting Basic Environment Variables
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Successfully changed working directory to /home/mxaddict!
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'HOME' to '/home/mxaddict'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'SHELL' to '/usr/bin/fish'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'USER' to 'mxaddict'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'LOGNAME' to 'mxaddict'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'PATH' to '/usr/local/sbin:/usr/local/bin:/usr/bin'
[2023-12-06T07:58:23Z INFO  lemurs::post_login::env_variables] Setting XDG Common Paths
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'XDG_CONFIG_HOME' to '/home/mxaddict/.config'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'XDG_CACHE_HOME' to '/home/mxaddict/.cache'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'XDG_DATA_HOME' to '/home/mxaddict/.local/share'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'XDG_STATE_HOME' to '/home/mxaddict/.local/state'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'XDG_DATA_DIRS' to '/usr/local/share:/usr/share'
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Set environment variable 'XDG_CONFIG_DIRS' to '/etc/xdg'
[2023-12-06T07:58:23Z INFO  lemurs::post_login] Starting Wayland session
[2023-12-06T07:58:23Z INFO  lemurs::auth::utmpx] Adding UTMPX record
[2023-12-06T07:58:23Z INFO  lemurs::auth::utmpx] Added UTMPX record
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Removing session environment variables
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Reverting to environment before session
[2023-12-06T07:58:23Z INFO  lemurs::env_container] Reverting to environment before session
[2023-12-06T07:58:23Z INFO  lemurs] Waiting for environment to terminate
[2023-12-06T07:58:23Z INFO  lemurs::post_login] Waiting for client to exit
[2023-12-06T07:58:33Z INFO  lemurs::post_login::wait_with_log] Joining with logging thread.
[2023-12-06T07:58:33Z INFO  lemurs::post_login] Client exited with exit code `signal: 11 (SIGSEGV) (core dumped)`
[2023-12-06T07:58:33Z INFO  lemurs] Environment terminated. Returning to Lemurs...
[2023-12-06T07:58:33Z INFO  lemurs::auth::utmpx] Removing UTMPX record
[2023-12-06T07:58:35Z INFO  lemurs] Starting new session for 'mxaddict' in environment 'Wayland { script_path: "/etc/lemurs/wayland/Hyprland" }'
[2023-12-06T07:58:35Z INFO  lemurs::post_login::env_variables] Setting XDG Session Parameters
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_SESSION_CLASS' to 'user'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_SESSION_TYPE' to 'wayland'
[2023-12-06T07:58:35Z INFO  lemurs::post_login::env_variables] Clearing XDG preemptively to set later
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Preemptively removed environment variable 'XDG_SESSION_CLASS'
[2023-12-06T07:58:35Z INFO  lemurs::auth] Login attempt for 'mxaddict'
[2023-12-06T07:58:35Z INFO  lemurs::auth::pam] Started opening session
[2023-12-06T07:58:35Z INFO  lemurs::auth::pam] Gotten Authenticator
[2023-12-06T07:58:35Z INFO  lemurs::auth::pam] Got handler
[2023-12-06T07:58:35Z INFO  lemurs::auth::pam] Validated account
[2023-12-06T07:58:35Z INFO  lemurs::auth::pam] Opened session
[2023-12-06T07:58:35Z INFO  lemurs::ui] Setting cached information
[2023-12-06T07:58:35Z INFO  lemurs::info_caching] Attempting to set cache
[2023-12-06T07:58:35Z INFO  lemurs::info_caching] Successfully set username in cache file
[2023-12-06T07:58:35Z INFO  lemurs::post_login::env_variables] Setting XDG Seat Variables
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_SEAT' to 'seat0'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_VTNR' to '2'
[2023-12-06T07:58:35Z INFO  lemurs::post_login::env_variables] Setting XDG Session Variables
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_RUNTIME_DIR' to '/run/user/1000'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_SESSION_ID' to '1'
[2023-12-06T07:58:35Z INFO  lemurs::post_login::env_variables] Setting Basic Environment Variables
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Successfully changed working directory to /home/mxaddict!
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'HOME' to '/home/mxaddict'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'SHELL' to '/usr/bin/fish'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'USER' to 'mxaddict'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'LOGNAME' to 'mxaddict'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'PATH' to '/usr/local/sbin:/usr/local/bin:/usr/bin'
[2023-12-06T07:58:35Z INFO  lemurs::post_login::env_variables] Setting XDG Common Paths
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_CONFIG_HOME' to '/home/mxaddict/.config'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_CACHE_HOME' to '/home/mxaddict/.cache'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_DATA_HOME' to '/home/mxaddict/.local/share'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_STATE_HOME' to '/home/mxaddict/.local/state'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_DATA_DIRS' to '/usr/local/share:/usr/share'
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Set environment variable 'XDG_CONFIG_DIRS' to '/etc/xdg'
[2023-12-06T07:58:35Z INFO  lemurs::post_login] Starting Wayland session
[2023-12-06T07:58:35Z INFO  lemurs::auth::utmpx] Adding UTMPX record
[2023-12-06T07:58:35Z INFO  lemurs::auth::utmpx] Added UTMPX record
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Removing session environment variables
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Reverting to environment before session
[2023-12-06T07:58:35Z INFO  lemurs::env_container] Reverting to environment before session
[2023-12-06T07:58:35Z INFO  lemurs] Waiting for environment to terminate
[2023-12-06T07:58:35Z INFO  lemurs::post_login] Waiting for client to exit
[2023-12-06T07:58:35Z INFO  lemurs::post_login::wait_with_log] Joining with logging thread.
[2023-12-06T07:58:35Z INFO  lemurs::post_login] Client exited with exit code `signal: 6 (SIGABRT) (core dumped)`
[2023-12-06T07:58:35Z INFO  lemurs] Environment terminated. Returning to Lemurs...
[2023-12-06T07:58:35Z INFO  lemurs::auth::utmpx] Removing UTMPX record

[mxaddict]

As you can see from the /var/log/lemurs.log first launch of Hyprland works fine, but once you've logged out or killed hyprland, second login attempt will cause hyprland to crash repeatedly.

[coastalwhite]

To be honest, this might very well be linked to #184. I think we should solve that and assess if this bug still exists.

[mxaddict]

To be honest, this might very well be linked to #184. I think we should solve that and assess if this bug still exists.

Yes, the symptoms for both issues are similar.

[sungyoonc]

I think there is something going wrong with lemurs and systemd-logind. When I tried using seatd, I was able to logout and login again.

~/.cache/hyprland/hyprlandCrashReport[PID].txt

[libseat] [libseat/backend/logind.c:642] Could not check if session was active: No such device or address
[libseat] [libseat/libseat.c:79] No backend was able to open a seat
[backend/session/session.c:84] Unable to create seat: Function not implemented
[backend/session/session.c:249] Failed to load session backend
[backend/backend.c:80] Failed to start a session
[backend/backend.c:358] Failed to start a DRM session
[CRITICAL] m_sWLRBackend was NULL!
[CRITICAL] Critical error thrown: wlr_backend_autocreate() failed!

[coastalwhite]

All interactions with systemd-logind are currently handled via pam-logind, this is not perfect sadly.

As is stated in documentation of systemd you ideally want to subscribe to the dbus interface of logind. This is something we don't do. I don't think this matters in the single seat case though.

[Samxamnom]

I think there is something going wrong with lemurs and systemd-logind. When I tried using seatd, I was able to logout and login again.

~/.cache/hyprland/hyprlandCrashReport[PID].txt

[libseat] [libseat/backend/logind.c:642] Could not check if session was active: No such device or address
[libseat] [libseat/libseat.c:79] No backend was able to open a seat
[backend/session/session.c:84] Unable to create seat: Function not implemented
[backend/session/session.c:249] Failed to load session backend
[backend/backend.c:80] Failed to start a session
[backend/backend.c:358] Failed to start a DRM session
[CRITICAL] m_sWLRBackend was NULL!
[CRITICAL] Critical error thrown: wlr_backend_autocreate() failed!

I get a kind of similar error everytime i try to start Hyprland using lemurs.
My Error:

[LOG] Disabling stdout logs! Check the log for further logs.
[wlr] [libseat] [libseat/backend/logind.c:642] Could not check if session was active: No such device or address
[wlr] [libseat] [common/terminal.c:162] Could not open target tty: Permission denied
[wlr] [libseat] [seatd/seat.c:61] Could not open tty0 to update VT: Permission denied
[wlr] [libseat] [common/terminal.c:162] Could not open target tty: Permission denied
[wlr] [libseat] [seatd/seat.c:72] Could not open terminal for VT 0: Permission denied
[wlr] [libseat] [seatd/seat.c:461] Could not open VT for client
[wlr] [libseat] [common/terminal.c:162] Could not open target tty: Permission denied
[wlr] [libseat] [seatd/seat.c:86] Could not open terminal to clean up VT 0: Permission denied
[wlr] [backend/backend.c:107] Timeout waiting session to become active
[wlr] [backend/backend.c:366] Failed to start a DRM session
[CRITICAL] m_sWLRBackend was NULL!
[CRITICAL] Critical error thrown: wlr_backend_autocreate() failed!
[CRITICAL] Hyprland has crashed :( Consult the crash report at /home/samxamnam/.cache/hyprland/hyprlandCrashReport3746.txt for more information.
[wlr] [libseat] [common/terminal.c:162] Could not open target tty: Permission denied
[wlr] [libseat] [seatd/seat.c:86] Could not open terminal to clean up VT 0: Permission denied

Is there any way to get around this?

[SpudGunMcGee]

Hey guys, also having this issue. what is funny is that if i test using Lemurs with Hyprland in a virtual machine, it works as intended. The only thing that I think could be different here is the graphics drivers?

[cassop]

same here with v 0.3.2

[fucksophie]

same here!

[sagarreddypatil]

+1