GNU bug report logs - #70194
SDDM fails to start, black screen on 188d18fc47

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Richard Sent <richard <at> freakingpenguin.com>
To: bug-guix <at> gnu.org
Subject: SDDM fails to start, black screen on 188d18fc47
Date: Thu, 04 Apr 2024 09:19:00 -0400

Hi Guix!

After upgrading Guix from c9cd16c630 to 188d18fc47, SDDM fails to start
and drops me onto a black screen. I heard from another user on IRC who
seemingly has the same issue, so I think there's a bug here and it's not
a "me" issue.

From the log, it seems like it might something to do with sddm-helper
communicating with PAM. Normally a line like "[PAM] Conversation with 1
messages" is printed after "[PAM] Authenticating..."

My SDDM configuration:

--8<---------------cut here---------------start------------->8---
(service sddm-service-type
                (sddm-configuration
                 (theme "guix-simplyblack-sddm")
                 (themes-directory (file-append guix-simplyblack-sddm-theme "/share/sddm/themes"))))
--8<---------------cut here---------------end--------------->8---

An sddm.log entry when it fails to start:

--8<---------------cut here---------------start------------->8---
[23:28:42.129] (II) DAEMON: Initializing...
[23:28:42.143] (II) DAEMON: Starting...
[23:28:42.144] (II) DAEMON: Logind interface found
[23:28:42.144] (II) DAEMON: Adding new display...
[23:28:42.146] (II) DAEMON: Loaded empty theme configuration
[23:28:42.146] (II) DAEMON: Xauthority path: "/var/run/sddm/xauth_TflZQy"
[23:28:42.147] (II) DAEMON: Using VT 7
[23:28:42.147] (II) DAEMON: Display server starting...
[23:28:42.147] (II) DAEMON: Writing cookie to "/var/run/sddm/xauth_TflZQy"
[23:28:42.147] (II) DAEMON: Running: /gnu/store/c6dkx87an4c9qjny6yakxss9zm60wk7p-startx -nolisten tcp -dpi 240 -background none -seat seat0 vt7 -auth /var/run/sddm/xauth_TflZQy -noreset -displayfd 16
[23:28:42.719] (II) DAEMON: Setting default cursor
[23:28:42.728] (WW) DAEMON: Could not setup default cursor
[23:28:42.728] (II) DAEMON: Running display setup script  "/gnu/store/6ansmr2w8q5kppw4vi5bg9cgmf5h36s8-sddm-0.20.0/share/sddm/scripts/Xsetup"
[23:28:42.732] (II) DAEMON: Display server started.
[23:28:42.732] (II) DAEMON: Socket server starting...
[23:28:42.732] (II) DAEMON: Socket server started.
[23:28:42.735] (II) DAEMON: Loading theme configuration from "/gnu/store/vvdgqz68b7hjysyxvx4jgrfs9n8l161a-guix-simplyblack-sddm-theme-0.1/share/sddm/themes/guix-simplyblack-sddm/theme.conf"
[23:28:42.735] (II) DAEMON: Greeter starting...
[23:28:42.746] (II) HELPER: [PAM] Starting...
[23:28:42.746] (II) HELPER: [PAM] Authenticating...
[23:28:42.746] (II) HELPER: [PAM] returning.
[23:28:42.794] (II) HELPER: Writing cookie to "/tmp/xauth_FEgdza"
[23:28:42.794] (II) HELPER: Starting X11 session: "" "/gnu/store/6ansmr2w8q5kppw4vi5bg9cgmf5h36s8-sddm-0.20.0/bin/sddm-greeter --socket /tmp/sddm-:0-lSqpNm --theme /gnu/store/vvdgqz68b7hjysyxvx4jgrfs9n8l161a-guix-simplyblack-sddm-theme-0.1/share/sddm/themes/guix-simplyblack-sddm"
[23:28:42.796] (II) DAEMON: Greeter session started successfully
[23:28:45.920] (II) DAEMON: Message received from greeter: Connect
[23:28:47.626] (II) HELPER: [PAM] Closing session
[23:28:47.628] (II) HELPER: [PAM] Ended.
[23:28:47.639] (WW) DAEMON: Auth: sddm-helper exited with 11
[23:28:47.639] (II) DAEMON: Greeter stopped. SDDM::Auth::HelperExitStatus(11)
--8<---------------cut here---------------end--------------->8---

An sddm.log entry when it successfully runs:

--8<---------------cut here---------------start------------->8---
[23:30:57.842] (II) DAEMON: Initializing...
[23:30:57.846] (II) DAEMON: Starting...
[23:30:57.846] (II) DAEMON: No session manager found
[23:30:57.846] (II) DAEMON: Adding new display...
[23:30:57.847] (II) DAEMON: Loaded empty theme configuration
[23:30:57.848] (II) DAEMON: Xauthority path: "/var/run/sddm/xauth_WsJLVn"
[23:30:57.848] (II) DAEMON: Using VT 7
[23:30:57.848] (II) DAEMON: Display server starting...
[23:30:57.848] (II) DAEMON: Writing cookie to "/var/run/sddm/xauth_WsJLVn"
[23:30:57.848] (II) DAEMON: Running: /gnu/store/ybrjbiwpbs440d784p2bmsk7apaybbhy-startx -nolisten tcp -dpi 240 -background none -seat seat0 vt7 -auth /var/run/sddm/xauth_WsJLVn -noreset -displayfd 16
[23:30:58.429] (II) DAEMON: Setting default cursor
[23:30:58.439] (WW) DAEMON: Could not setup default cursor
[23:30:58.439] (II) DAEMON: Running display setup script  "/gnu/store/n0msvb8vfd3q3f9349kpq8305c4mx67x-sddm-0.20.0/share/sddm/scripts/Xsetup"
[23:30:58.442] (II) DAEMON: Display server started.
[23:30:58.442] (II) DAEMON: Socket server starting...
[23:30:58.442] (II) DAEMON: Socket server started.
[23:30:58.445] (II) DAEMON: Loading theme configuration from "/gnu/store/vvdgqz68b7hjysyxvx4jgrfs9n8l161a-guix-simplyblack-sddm-theme-0.1/share/sddm/themes/guix-simplyblack-sddm/theme.conf"
[23:30:58.445] (II) DAEMON: Greeter starting...
[23:30:58.456] (II) HELPER: [PAM] Starting...
[23:30:58.456] (II) HELPER: [PAM] Authenticating...
[23:30:58.456] (II) HELPER: [PAM] returning.
[23:30:58.489] (II) HELPER: Writing cookie to "/tmp/xauth_PUcYpV"
[23:30:58.489] (II) HELPER: Starting X11 session: "" "/gnu/store/n0msvb8vfd3q3f9349kpq8305c4mx67x-sddm-0.20.0/bin/sddm-greeter --socket /tmp/sddm-:0-cMaMMt --theme /gnu/store/vvdgqz68b7hjysyxvx4jgrfs9n8l161a-guix-simplyblack-sddm-theme-0.1/share/sddm/themes/guix-simplyblack-sddm"
[23:30:58.491] (II) DAEMON: Greeter session started successfully
[23:31:01.616] (II) DAEMON: Message received from greeter: Connect
[23:31:05.982] (II) DAEMON: Message received from greeter: Login
[23:31:05.982] (II) DAEMON: Reading from "/run/current-system/profile/share/xsessions/stumpwm.desktop"
[23:31:05.982] (II) DAEMON: Session "/run/current-system/profile/share/xsessions/stumpwm.desktop" selected, command: "/gnu/store/fvm9ibhr11bqj09dx5wwha5260hgw2p3-stumpwm-22.11/bin/stumpwm" for VT 7
[23:31:05.991] (II) HELPER: [PAM] Starting...
[23:31:05.991] (II) HELPER: [PAM] Authenticating...
[23:31:05.991] (II) HELPER: [PAM] Preparing to converse...
[23:31:05.991] (II) HELPER: [PAM] Conversation with 1 messages
[23:31:05.996] (II) HELPER: [PAM] returning.
[23:31:05.996] (II) DAEMON: Authentication for user  "richard"  successful
[23:31:06.028] (II) HELPER: Writing cookie to "/tmp/xauth_qHpzQg"
[23:31:06.028] (II) HELPER: Starting X11 session: "" "/gnu/store/by9l6s04vi7g7q8nd3ycvaz2p9373y0h-xinitrc \"/gnu/store/fvm9ibhr11bqj09dx5wwha5260hgw2p3-stumpwm-22.11/bin/stumpwm\""
[23:31:06.030] (II) DAEMON: Session started true
[23:31:06.044] (II) HELPER: [PAM] Closing session
[23:31:06.045] (II) HELPER: [PAM] Ended.
[23:31:06.047] (II) DAEMON: Auth: sddm-helper exited successfully
[23:31:06.047] (II) DAEMON: Greeter stopped. SDDM::Auth::HELPER_SUCCESS
--8<---------------cut here---------------end--------------->8---

-- 
Take it easy,
Richard Sent
Making my computer weirder one commit at a time.

Message #8 received at 70194 <at> debbugs.gnu.org (full text, mbox):

From: Richard Sent <richard <at> freakingpenguin.com>
To: 70194 <at> debbugs.gnu.org
Subject: Re: bug#70194: SDDM fails to start, black screen on 188d18fc47
Date: Thu, 11 Apr 2024 15:46:40 -0400

After updating to 4e7337536ba41e888a601c92fada8a4adca9d2c6, the issue
seems to have been resolved. I'll leave this open in case anyone else
who experienced the issue earlier is still dealing with it.

-- 
Take it easy,
Richard Sent
Making my computer weirder one commit at a time.

Message #11 received at 70194 <at> debbugs.gnu.org (full text, mbox):

From: Jonathan Brielmaier <jonathan.brielmaier <at> web.de>
To: 70194 <at> debbugs.gnu.org
Subject: SDDM fails to start, black screen on 188d18fc47
Date: Sat, 13 Apr 2024 12:49:10 +0200

I ran into this issue on my newly installed laptop (Guix System).

Even after reconfiguring to 15a523ea213065c275e4852673cbb27c72c0ad87
(current master as of today), the screen stayed black and SDDM didn't start.

My sddm configuration:
```
(service sddm-service-type
  (sddm-configuration
    (display-server "wayland")))
```

So in the end I switched back to GDM which works :)

~Jonathan

Message #14 received at 70194 <at> debbugs.gnu.org (full text, mbox):

From: tumashu <tumashu <at> 163.com>
To: 70194 <at> debbugs.gnu.org
Subject: SDDM fails to start, black screen on 188d18fc47
Date: Fri, 19 Apr 2024 18:42:50 +0800 (CST)

[Message part 1 (text/plain, inline)]

remove this line



(display-server "wayland")



after update to sddm 0.20, sddm add it support, but sddm-service-type do not support at the moment,


 recent days i try to fix, but face vt problem, no progress






--
发自我的网易邮箱手机智能版

[Message part 2 (text/html, inline)]

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