You are not logged in.

#1 2020-06-27 10:39:35

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

I have a problem with lightdm after installing arch. For simplicity, I tried installing arch again and not installing anything extra. Now I have installed:

(via pacstrap):              base linux linux-firmware
(via pacman in chroot):      vim wpa_supplicant networkmanager
(via pacman in normal boot): ligthdm lightdm-gkt-greeter xfce4 xfce4-goodies

If I make only lightdm enabled (I tried restarting several times), lightdm will start. However, if you activate the NetworkManager and lightdm, then lightdm will not start.
And if I disable NetworkManager later, the situation will not change.

How can I solve this problem?

Logs:
After starting:

# systemctl
  UNIT                                                                                   LOAD   ACTIVE SUB       DESCRIPTION                                                               
  proc-sys-fs-binfmt_misc.automount                                                      loaded active waiting   Arbitrary Executable File Formats File System Automount Point             
  sys-devices-pci0000:00-0000:00:02.0-drm-card0-card0\x2deDP\x2d1-intel_backlight.device loaded active plugged   /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight
  sys-devices-pci0000:00-0000:00:14.0-usb1-1\x2d4-1\x2d4:1.0-bluetooth-hci0.device       loaded active plugged   /sys/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/bluetooth/hci0      
  sys-devices-pci0000:00-0000:00:14.0-usb1-1\x2d7-1\x2d7:1.0-tty-ttyACM0.device          loaded active plugged   Fingerprint Reader                                                        
  sys-devices-pci0000:00-0000:00:1c.0-0000:3b:00.0-net-wlp59s0.device                    loaded active plugged   QCA6174 802.11ac Wireless Network Adapter                                 
  sys-devices-pci0000:00-0000:00:1d.0-0000:3d:00.0-nvme-nvme0-nvme0n1-nvme0n1p1.device   loaded active plugged   KXG60ZNV512G NVMe TOSHIBA 512GB 1                                         
  sys-devices-pci0000:00-0000:00:1d.0-0000:3d:00.0-nvme-nvme0-nvme0n1-nvme0n1p2.device   loaded active plugged   KXG60ZNV512G NVMe TOSHIBA 512GB 2                                         
  sys-devices-pci0000:00-0000:00:1d.0-0000:3d:00.0-nvme-nvme0-nvme0n1.device             loaded active plugged   KXG60ZNV512G NVMe TOSHIBA 512GB                                           
  sys-devices-pci0000:00-0000:00:1f.3-sound-card0.device                                 loaded active plugged   Cannon Lake PCH cAVS                                                      
  sys-devices-platform-dell\x2dlaptop-leds-dell::kbd_backlight.device                    loaded active plugged   /sys/devices/platform/dell-laptop/leds/dell::kbd_backlight                
  sys-devices-platform-serial8250-tty-ttyS0.device                                       loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS0                                
  sys-devices-platform-serial8250-tty-ttyS1.device                                       loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS1                                
  sys-devices-platform-serial8250-tty-ttyS2.device                                       loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS2                                
  sys-devices-platform-serial8250-tty-ttyS3.device                                       loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS3                                
  sys-devices-virtual-misc-rfkill.device                                                 loaded active plugged   /sys/devices/virtual/misc/rfkill                                          
  sys-module-configfs.device                                                             loaded active plugged   /sys/module/configfs                                                      
  sys-subsystem-bluetooth-devices-hci0.device                                            loaded active plugged   /sys/subsystem/bluetooth/devices/hci0                                     
  sys-subsystem-net-devices-wlp59s0.device                                               loaded active plugged   QCA6174 802.11ac Wireless Network Adapter                                 
  -.mount                                                                                loaded active mounted   Root Mount                                                                
  boot-EFI.mount                                                                         loaded active mounted   /boot/EFI                                                                 
  dev-hugepages.mount                                                                    loaded active mounted   Huge Pages File System                                                    
  dev-mqueue.mount                                                                       loaded active mounted   POSIX Message Queue File System                                           
  run-user-0.mount                                                                       loaded active mounted   /run/user/0                                                               
  sys-kernel-config.mount                                                                loaded active mounted   Kernel Configuration File System                                          
  sys-kernel-debug.mount                                                                 loaded active mounted   Kernel Debug File System                                                  
  sys-kernel-tracing.mount                                                               loaded active mounted   Kernel Trace File System                                                  
  tmp.mount                                                                              loaded active mounted   Temporary Directory (/tmp)                                                
  systemd-ask-password-console.path                                                      loaded active waiting   Dispatch Password Requests to Console Directory Watch                     
  systemd-ask-password-wall.path                                                         loaded active waiting   Forward Password Requests to Wall Directory Watch                         
  init.scope                                                                             loaded active running   System and Service Manager                                                
  session-1.scope                                                                        loaded active running   Session 1 of user root                                                    
  dbus.service                                                                           loaded active running   D-Bus System Message Bus                                                  
  getty@tty2.service                                                                     loaded active running   Getty on tty2                                                             
  kmod-static-nodes.service                                                              loaded active exited    Create list of static device nodes for the current kernel                 
● lightdm.service                                                                        loaded failed failed    Light Display Manager                                                     
  NetworkManager.service                                                                 loaded active running   Network Manager                                                           
  systemd-backlight@backlight:intel_backlight.service                                    loaded active exited    Load/Save Screen Backlight Brightness of backlight:intel_backlight        
  systemd-backlight@leds:dell::kbd_backlight.service                                     loaded active exited    Load/Save Screen Backlight Brightness of leds:dell::kbd_backlight         
  systemd-journal-flush.service                                                          loaded active exited    Flush Journal to Persistent Storage                                       
  systemd-journald.service                                                               loaded active running   Journal Service                                                           
  systemd-logind.service                                                                 loaded active running   Login Service                                                             
  systemd-random-seed.service                                                            loaded active exited    Load/Save Random Seed                                                     
  systemd-remount-fs.service                                                             loaded active exited    Remount Root and Kernel File Systems                                      
  systemd-sysctl.service                                                                 loaded active exited    Apply Kernel Variables                                                    
  systemd-tmpfiles-setup-dev.service                                                     loaded active exited    Create Static Device Nodes in /dev                                        
  systemd-tmpfiles-setup.service                                                         loaded active exited    Create Volatile Files and Directories                                     
  systemd-udev-trigger.service                                                           loaded active exited    udev Coldplug all Devices                                                 
  systemd-udevd.service                                                                  loaded active running   udev Kernel Device Manager                                                
  systemd-update-utmp.service                                                            loaded active exited    Update UTMP about System Boot/Shutdown                                    
  systemd-user-sessions.service                                                          loaded active exited    Permit User Sessions                                                      
  user-runtime-dir@0.service                                                             loaded active exited    User Runtime Directory /run/user/0                                        
  user@0.service                                                                         loaded active running   User Manager for UID 0                                                    
  wpa_supplicant.service                                                                 loaded active running   WPA supplicant                                                            
  -.slice                                                                                loaded active active    Root Slice                                                                
  system-getty.slice                                                                     loaded active active    system-getty.slice                                                        
  system-modprobe.slice                                                                  loaded active active    system-modprobe.slice                                                     
  system-systemd\x2dbacklight.slice                                                      loaded active active    system-systemd\x2dbacklight.slice                                         
  system.slice                                                                           loaded active active    System Slice                                                              
  user-0.slice                                                                           loaded active active    User Slice of UID 0                                                       
  user.slice                                                                             loaded active active    User and Session Slice                                                    
  dbus.socket                                                                            loaded active running   D-Bus System Message Bus Socket                                           
  dm-event.socket                                                                        loaded active listening Device-mapper event daemon FIFOs                                          
  systemd-coredump.socket                                                                loaded active listening Process Core Dump Socket                                                  
  systemd-initctl.socket                                                                 loaded active listening initctl Compatibility Named Pipe                                          
  systemd-journald-audit.socket                                                          loaded active running   Journal Audit Socket                                                      
  systemd-journald-dev-log.socket                                                        loaded active running   Journal Socket (/dev/log)                                                 
  systemd-journald.socket                                                                loaded active running   Journal Socket                                                            
  systemd-rfkill.socket                                                                  loaded active listening Load/Save RF Kill Switch Status /dev/rfkill Watch                         
  systemd-udevd-control.socket                                                           loaded active running   udev Control Socket                                                       
  systemd-udevd-kernel.socket                                                            loaded active running   udev Kernel Socket                                                        
  basic.target                                                                           loaded active active    Basic System                                                              
  bluetooth.target                                                                       loaded active active    Bluetooth                                                                 
  cryptsetup.target                                                                      loaded active active    Local Encrypted Volumes                                                   
  getty.target                                                                           loaded active active    Login Prompts                                                             
  graphical.target                                                                       loaded active active    Graphical Interface                                                       
  local-fs-pre.target                                                                    loaded active active    Local File Systems (Pre)                                                  
  local-fs.target                                                                        loaded active active    Local File Systems                                                        
  multi-user.target                                                                      loaded active active    Multi-User System                                                         
  network.target                                                                         loaded active active    Network                                                                   
  paths.target                                                                           loaded active active    Paths                                                                     
  remote-fs.target                                                                       loaded active active    Remote File Systems                                                       
  slices.target                                                                          loaded active active    Slices                                                                    
  sockets.target                                                                         loaded active active    Sockets                                                                   
  sound.target                                                                           loaded active active    Sound Card                                                                
  swap.target                                                                            loaded active active    Swap                                                                      
  sysinit.target                                                                         loaded active active    System Initialization                                                     
  timers.target                                                                          loaded active active    Timers                                                                    
  man-db.timer                                                                           loaded active waiting   Daily man-db regeneration                                                 
  shadow.timer                                                                           loaded active waiting   Daily verification of password and group files                            
  systemd-tmpfiles-clean.timer                                                           loaded active waiting   Daily Cleanup of Temporary Directories                                    

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.

90 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.
# systemctl status lightdm
● lightdm.service - Light Display Manager
     Loaded: loaded (/usr/lib/systemd/system/lightdm.service; enabled; vendor preset: disabled)
     Active: failed (Result: exit-code) since Sat 2020-06-27 13:10:34 MSK; 56s ago
       Docs: man:lightdm(1)
    Process: 458 ExecStart=/usr/bin/lightdm (code=exited, status=1/FAILURE)
   Main PID: 458 (code=exited, status=1/FAILURE)

Jun 27 13:10:34 dellXPS systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 5.
Jun 27 13:10:34 dellXPS systemd[1]: Stopped Light Display Manager.
Jun 27 13:10:34 dellXPS systemd[1]: lightdm.service: Start request repeated too quickly.
Jun 27 13:10:34 dellXPS systemd[1]: lightdm.service: Failed with result 'exit-code'.
Jun 27 13:10:34 dellXPS systemd[1]: Failed to start Light Display Manager.

and if I run

# systemctl restart lightdm

lightdm will start, and the next result of the previous command:

# systemctl status lightdm
● lightdm.service - Light Display Manager
     Loaded: loaded (/usr/lib/systemd/system/lightdm.service; enabled; vendor preset: disabled)
     Active: active (running) since Sat 2020-06-27 13:11:36 MSK; 14s ago
       Docs: man:lightdm(1)
   Main PID: 551 (lightdm)
      Tasks: 14 (limit: 18745)
     Memory: 105.9M
     CGroup: /system.slice/lightdm.service
             ├─551 /usr/bin/lightdm
             ├─557 /usr/lib/Xorg :0 -seat seat0 -auth /run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
             └─598 lightdm --session-child 14 21

Jun 27 13:11:36 dellXPS systemd[1]: Starting Light Display Manager...
Jun 27 13:11:36 dellXPS systemd[1]: Started Light Display Manager.
Jun 27 13:11:36 dellXPS lightdm[551]: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
Jun 27 13:11:37 dellXPS lightdm[569]: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
Jun 27 13:11:37 dellXPS lightdm[569]: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0)

Last edited by ismagilov_aa (2020-07-02 08:51:52)

Offline

#2 2020-06-27 12:37:26

Awebb
Member
Registered: 2010-05-06
Posts: 5,479

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

1. Remember the existence of journalctl.
2. Try a different greater to rule that out.

Offline

#3 2020-06-27 12:52:21

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Awebb wrote:

2. Try a different greater to rule that out.

You mean to try another display manager?

Offline

#4 2020-06-27 13:56:47

Awebb
Member
Registered: 2010-05-06
Posts: 5,479

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Sorry for the typo. I mean a different lightdm greeter.

Offline

#5 2020-06-27 14:37:06

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Awebb wrote:

Sorry for the typo. I mean a different lightdm greeter.

Could you share a link to any article describing this process?

Offline

#6 2020-06-27 14:39:48

Awebb
Member
Registered: 2010-05-06
Posts: 5,479

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

You've installed lightdm-gkt-greeter. Check the lightdm wiki article here on the arch wiki and try another greeter to rule out the gtk greeter. I haven't used lightdm in a while, but every time I did, some greeter acted up.

Offline

#7 2020-06-27 16:35:29

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Awebb wrote:

You've installed lightdm-gkt-greeter. Check the lightdm wiki article here on the arch wiki and try another greeter to rule out the gtk greeter. I haven't used lightdm in a while, but every time I did, some greeter acted up.

I do not understand what happened. I installed another greeter, it started, but when I tried to log in, there was some problem and after rebooting it did not boot. I commented out the line back in the /etc/lightdm/lightdm.conf file (see the instructions from the wiki archa) and lightdm-gtk-greeter worked. I tried to restart several times and everything worked. True, if earlier systemd displayed a series of information and hung forever, now it is like this for a second, that is, lightdm starts, but not instantly. I think this is not scary.

But it looks very strange ... Maybe this is not always.
Maybe you know what happened and why it was fixed?

Offline

#8 2020-06-27 16:43:02

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

The previous message was erroneous. lightdm started to run, but as it turned out, not always and not always fast. Of 10 launches, only 3 started lightdm and then after 5 seconds.

Offline

#9 2020-06-27 23:11:45

Awebb
Member
Registered: 2010-05-06
Posts: 5,479

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Have you familiarized with journalctl yet?

Offline

#10 2020-06-28 11:41:02

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

There are a lot of things. The first thing that caught my eye. Maybe it's not at all.

Error getting user list from org.freedesctop.Accounts. ..... The name org.freedesctop.Accounts was not provided bu any .service files

Last edited by ismagilov_aa (2020-06-28 11:48:44)

Offline

#11 2020-06-28 12:50:24

seth
Member
Registered: 2012-09-03
Posts: 15,323

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

That's meaningless. Post the journal.
Also afaik lightdm itself still logs to /var/log/lightdm, so have a look there as well.

Also post the output of "hostnamectl"

Offline

#12 2020-06-30 12:43:15

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

# hostnamectl
   Static hostname: dellXPS
         Icon name: computer-laptop
           Chassis: laptop
        Machine ID: 6230794c9d2f41f6a199c5e7d06920d1
           Boot ID: f5dd2251446a4c9b8afb24519f179665
  Operating System: Arch Linux
            Kernel: Linux 5.7.6-arch1-1
      Architecture: x86-64
# cat /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.30.0, UID=0 PID=464
[+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Registered seat module local
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ‘gio-vfs’
[+0.00s] DEBUG: Monitoring logind for seats
[+0.00s] DEBUG: New seat added from logind: seat0
[+0.00s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.00s] DEBUG: Seat seat0: Starting
[+0.00s] DEBUG: Seat seat0: Creating greeter session
[+0.00s] DEBUG: Seat seat0: Creating display server of type x
[+0.00s] DEBUG: posix_spawn avoided (fd close requested) 
[+0.00s] DEBUG: Could not run plymouth --ping: Failed to execute child process “plymouth” (No such file or directory)
[+0.00s] DEBUG: Using VT 7
[+0.00s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.00s] DEBUG: XServer 0: Logging to /var/log/lightdm/x-0.log
[+0.00s] DEBUG: XServer 0: Writing X server authority to /run/lightdm/root/:0
[+0.00s] DEBUG: XServer 0: Launching X Server
[+0.00s] DEBUG: Launching process 470: /usr/bin/X :0 -seat seat0 -auth /run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.00s] DEBUG: XServer 0: Waiting for ready signal from X server :0
[+0.00s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.01s] WARNING: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
[+0.01s] DEBUG: Loading user config from /etc/lightdm/users.conf
[+0.01s] DEBUG: User ismagilov added
[+0.45s] DEBUG: Process 470 exited with return value 1
[+0.45s] DEBUG: XServer 0: X server stopped
[+0.45s] DEBUG: Releasing VT 7
[+0.45s] DEBUG: XServer 0: Removing X server authority /run/lightdm/root/:0
[+0.45s] DEBUG: Seat seat0: Display server stopped
[+0.45s] DEBUG: Seat seat0: Stopping session
[+0.45s] DEBUG: Seat seat0: Session stopped
[+0.45s] DEBUG: Seat seat0: Stopping display server, no sessions require it
[+0.45s] DEBUG: Seat seat0: Stopping; greeter display server failed to start
[+0.45s] DEBUG: Seat seat0: Stopping
[+0.45s] DEBUG: Seat seat0: Stopped
[+0.45s] DEBUG: Required seat has stopped
[+0.45s] DEBUG: Stopping display manager
[+0.45s] DEBUG: Display manager stopped
[+0.45s] DEBUG: Stopping daemon
[+0.45s] DEBUG: Exiting with return value 1

journalctl very big.. (Posts cannot be longer than 1,048,576 bytes.)
maybe I can post only grep journalctl output?

Offline

#13 2020-06-30 12:52:21

2ManyDogs
Forum Moderator
Registered: 2012-01-15
Posts: 3,189

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

ismagilov_aa wrote:

journalctl very big.. (Posts cannot be longer than 1,048,576 bytes.)
maybe I can post only grep journalctl output?

Use a pastebin client. See the tip box at the top of the topic: https://wiki.archlinux.org/index.php/Li … in_clients

Offline

#14 2020-06-30 13:01:37

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Offline

#15 2020-06-30 13:20:11

loqs
Member
Registered: 2014-03-06
Posts: 10,968

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Is there something different with each of the nine boots contained in the journal you posted?

Offline

#16 2020-06-30 13:29:24

seth
Member
Registered: 2012-09-03
Posts: 15,323

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

The last 8 have "lightdm.service: Failed with result 'exit-code'." the first one doesn't.
(Network manager is up before lightdm in the good one too, though)

Edit

[+0.00s] DEBUG: Launching process 470: /usr/bin/X :0 -seat seat0 -auth /run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
…
[+0.45s] DEBUG: Process 470 exited with return value 1

It's because the X11 server crashes.
=> Cause a failing boot, reboot, but only into the multi-user.target (see link in signature) and post the xorg logs (see other link ;-)

Last edited by seth (2020-06-30 13:31:29)

Offline

#17 2020-06-30 13:31:30

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Oh. I didn’t know that journalctl stores all starts. It makes sense to watch only the most recent launch. The first few were without graphical interfaces. Here is only the most recent launch.

https://pastebin.com/k1dB66w1

Offline

#18 2020-06-30 13:33:40

seth
Member
Registered: 2012-09-03
Posts: 15,323

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Also this is a system with hybrid graphics and nouveau - how did you configure it?
https://wiki.archlinux.org/index.php/Optimus

Offline

#19 2020-06-30 13:40:51

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

seth wrote:

Cause a failing boot, reboot, but only into the multi-user.target (see link in signature) and post the xorg logs (see other link ;-)

If I understood correctly, then I had to start, see what the problem was, call systemctl set-default, restart the computer and show the file /var/log/Xorg.0.log
https://pastebin.com/d3rADzgE

Offline

#20 2020-06-30 13:51:08

seth
Member
Registered: 2012-09-03
Posts: 15,323

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

[     3.973] (II) VESA: driver for VESA chipsets: vesa
[     3.973] (EE) open /dev/dri/card0: No such file or directory
[     3.973] (WW) Falling back to old probe method for modesetting
[     3.974] (EE) open /dev/dri/card0: No such file or directory
[     3.974] (II) modeset(G0): using drv /dev/dri/card1
[     3.974] (EE) Screen 0 deleted because of no matching config section.
…
[     4.338] (EE) Screen(s) found, but none have a usable configuration.
[     4.338] (EE) 
Fatal server error:
[     4.338] (EE) no screens found(EE) 
[     4.338] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[     4.338] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[     4.338] (EE) 
[     4.338] (EE) Server terminated with error (1). Closing log file.
seth wrote:

Also this is a system with hybrid graphics and nouveau - how did you configure it?
https://wiki.archlinux.org/index.php/Optimus

Offline

#21 2020-06-30 14:00:46

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

If I disable NetworkManager log look like
https://pastebin.com/eDWRA7xr

I did not configure this system in any way. Although it is recommended to prescribe nouveau.modeset=0 for my computer. But I did nothing except installing the system (following the instructions from the wiki) and installing a couple of packages.

Offline

#22 2020-06-30 14:03:33

seth
Member
Registered: 2012-09-03
Posts: 15,323

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Then see the link I posted and configure it. That's not optional.
The difference is the availability of the nvidia chip when X11 starts, resp. which chip gets selected as main one.

Offline

#23 2020-07-01 20:29:33

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

I add

 nouveau.modeset=0 

to grub; install

 pacman -S xf86-video-intel 

and now everything works (also added bbswitch to save energy). Thanks!!!

Offline

#24 2020-07-02 07:48:06

ismagilov_aa
Member
Registered: 2020-06-27
Posts: 13

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

How to mark topic as SOLVED?

Offline

#25 2020-07-02 08:14:31

Awebb
Member
Registered: 2010-05-06
Posts: 5,479

Re: SOLVED lightdm doesn't launch at startup if NetworkManager is enabled

Edit the first post and prepend [SOLVED] to the thread title.

Offline

Board footer

Powered by FluxBB