[Solved] Xorg black screen with archlinux-xdm

FeatherInk · 2019-02-23 18:59:38

Hi,

I've been struggling with this issue since this morning, I was innocently messing around with my username, so i've changed it, along with my group name, and my home folder name, then this bug appeared. I did a whole bunch of things trying to fix this almost causing my system to break but nothing worked.

I'm using archlinux-xdm as a DM, and it starts at tty2

Now when logging through arch-xdm, I consistently get a black screen with an instance of thunar, the weird part is that some of the programs I've binded to keys, like tilda or flameshot (for screenshots) still work in this situation. And that's how i got this screen :

Black Screen

=> While arch-xdm is enabled, switching to normal console like in my tty1 and logging in, loads the x server perfectly well.

Here is where it gets very strange, and that's why I can't figure how to debug this :

When disabling arch-xdm, and enabling any other DM, i get the black screen again, and more importantly, I don't even get the normal x server when logging through console directly.

Finally when booting on console, without any DM enabled, I get the black screen again.

This tells me that it has something to do with arch-xdm but I have no idea why and where it get stuck from the logs.

/var/log/Xorg.1.log

[    67.165] (WW) Failed to open protocol names file lib/xorg/protocol.txt
[    67.165] 
X.Org X Server 1.20.3
X Protocol Version 11, Revision 0
[    67.166] Build Operating System: Linux Arch Linux
[    67.166] Current Operating System: Linux ObsidianPhoenix 4.20.8-arch1-1-ARCH #1 SMP PREEMPT Wed Feb 13 00:06:58 UTC 2019 x86_64
[    67.166] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=d9b55692-47a8-4e8d-abdd-9e7070d1f8ed rw quiet
[    67.166] Build Date: 25 October 2018  04:42:32PM
[    67.166]  
[    67.166] Current version of pixman: 0.38.0
[    67.167] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[    67.167] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    67.168] (==) Log file: "/var/log/Xorg.1.log", Time: Sat Feb 23 13:35:59 2019
[    67.168] (==) Using config directory: "/etc/X11/xorg.conf.d"
[    67.168] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    67.168] (==) No Layout section.  Using the first Screen section.
[    67.168] (==) No screen section available. Using defaults.
[    67.168] (**) |-->Screen "Default Screen Section" (0)
[    67.168] (**) |   |-->Monitor "<default monitor>"
[    67.169] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[    67.169] (==) Automatically adding devices
[    67.169] (==) Automatically enabling devices
[    67.169] (==) Automatically adding GPU devices
[    67.169] (==) Automatically binding GPU devices
[    67.169] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    67.169] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[    67.169] 	Entry deleted from font path.
[    67.169] (==) FontPath set to:
	/usr/share/fonts/misc,
	/usr/share/fonts/TTF,
	/usr/share/fonts/OTF,
	/usr/share/fonts/100dpi,
	/usr/share/fonts/75dpi
[    67.169] (==) ModulePath set to "/usr/lib/xorg/modules"
[    67.169] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[    67.169] (II) Module ABI versions:
[    67.169] 	X.Org ANSI C Emulation: 0.4
[    67.169] 	X.Org Video Driver: 24.0
[    67.169] 	X.Org XInput driver : 24.1
[    67.169] 	X.Org Server Extension : 10.0
[    67.171] (++) using VT number 3

[    67.176] (II) systemd-logind: took control of session /org/freedesktop/login1/session/_33
[    67.178] (II) xfree86: Adding drm device (/dev/dri/card1)
[    67.180] (II) systemd-logind: got fd for /dev/dri/card1 226:1 fd 10 paused 0
[    67.181] (II) xfree86: Adding drm device (/dev/dri/card0)
[    67.183] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 11 paused 1
[    67.183] (EE) Error systemd-logind returned paused fd for drm node
[    67.183] (II) systemd-logind: releasing fd for 226:0
[    67.191] (--) PCI:*(0@0:2:0) 8086:191b:1025:1039 rev 6, Mem @ 0x92000000/16777216, 0xa0000000/268435456, I/O @ 0x00005000/64, BIOS @ 0x????????/131072
[    67.192] (--) PCI: (1@0:0:0) 10de:139b:1025:1039 rev 162, Mem @ 0x93000000/16777216, 0x50000000/268435456, 0x60000000/33554432, I/O @ 0x00004000/128
[    67.192] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[    67.192] (II) LoadModule: "glx"
[    67.192] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    67.196] (II) Module glx: vendor="X.Org Foundation"
[    67.196] 	compiled for 1.20.3, module version = 1.0.0
[    67.196] 	ABI class: X.Org Server Extension, version 10.0
[    67.196] (==) Matched nouveau as autoconfigured driver 0
[    67.196] (==) Matched nv as autoconfigured driver 1
[    67.196] (==) Matched intel as autoconfigured driver 2
[    67.196] (==) Matched modesetting as autoconfigured driver 3
[    67.196] (==) Matched fbdev as autoconfigured driver 4
[    67.196] (==) Matched vesa as autoconfigured driver 5
[    67.196] (==) Assigned the driver to the xf86ConfigLayout
[    67.196] (II) LoadModule: "nouveau"
[    67.197] (WW) Warning, couldn't open module nouveau
[    67.197] (EE) Failed to load module "nouveau" (module does not exist, 0)
[    67.197] (II) LoadModule: "nv"
[    67.197] (WW) Warning, couldn't open module nv
[    67.197] (EE) Failed to load module "nv" (module does not exist, 0)
[    67.197] (II) LoadModule: "intel"
[    67.197] (WW) Warning, couldn't open module intel
[    67.197] (EE) Failed to load module "intel" (module does not exist, 0)
[    67.197] (II) LoadModule: "modesetting"
[    67.197] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[    67.198] (II) Module modesetting: vendor="X.Org Foundation"
[    67.198] 	compiled for 1.20.3, module version = 1.20.3
[    67.199] 	Module class: X.Org Video Driver
[    67.199] 	ABI class: X.Org Video Driver, version 24.0
[    67.199] (II) LoadModule: "fbdev"
[    67.199] (WW) Warning, couldn't open module fbdev
[    67.199] (EE) Failed to load module "fbdev" (module does not exist, 0)
[    67.199] (II) LoadModule: "vesa"
[    67.199] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    67.199] (II) Module vesa: vendor="X.Org Foundation"
[    67.199] 	compiled for 1.20.0, module version = 2.4.0
[    67.199] 	Module class: X.Org Video Driver
[    67.199] 	ABI class: X.Org Video Driver, version 24.0
[    67.199] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    67.199] (II) VESA: driver for VESA chipsets: vesa
[    67.199] (WW) Falling back to old probe method for modesetting
[    67.200] (II) modeset(1): using default device
[    67.200] (II) modeset(G0): using drv /dev/dri/card1
[    67.200] (EE) Screen 0 deleted because of no matching config section.
[    67.200] (II) UnloadModule: "modesetting"
[    67.200] (EE) 
Fatal server error:
[    67.200] (EE) Cannot run in framebuffer mode. Please specify busIDs        for all framebuffer devices
[    67.200] (EE) 
[    67.200] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[    67.200] (EE) Please also check the log file at "/var/log/Xorg.1.log" for additional information.
[    67.200] (EE) 
[    67.220] (EE) Server terminated with error (1). Closing log file.

/var/log/xdm.log

xdm info (pid 526): Starting xdm 1.1.11
xdm info (pid 526): Starting X server on :0

X.Org X Server 1.20.3
X Protocol Version 11, Revision 0
Build Operating System: Linux Arch Linux
Current Operating System: Linux ObsidianPhoenix 4.20.11-arch2-1-ARCH #1 SMP PREEMPT Fri Feb 22 13:09:33 UTC 2019 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=d9b55692-47a8-4e8d-abdd-9e7070d1f8ed rw quiet
Build Date: 25 October 2018  04:42:32PM
 
Current version of pixman: 0.38.0
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Feb 23 19:24:57 2019
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Unsupported high keycode 372 for name <I372> ignored
>                   X11 cannot support keycodes above 255.
>                   This warning only shows for the first high keycode.
> Internal error:   Could not resolve keysym XF86MonBrightnessCycle
Errors from xkbcomp are not fatal to the X server
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Unsupported high keycode 372 for name <I372> ignored
>                   X11 cannot support keycodes above 255.
>                   This warning only shows for the first high keycode.
> Internal error:   Could not resolve keysym XF86MonBrightnessCycle
Errors from xkbcomp are not fatal to the X server
/usr/bin/xrdb:  "*background" on line 22 overrides entry on line 21
/usr/bin/xrdb: colon missing on line 46, ignoring line
Warning: Actions not found: abort-display, set-session-argument, finish-field
xdm info (pid 568): sourcing /etc/X11/xdm/archlinux/Xsetup
(II) AIGLX: Suspending AIGLX clients for VT switch

However I don't think these logs are any relevant because the xserver can still load as explained above.
So unless I can find arch xdm logs or something related I don't think i might solve this any sooner.

EDIT :
Also just in case, here are some of the arch-xdm config files i've slightly modified this morning. Nothing fancy i've only changed the hex color code to black.

/etc/X11/xdm/archlinux/xdm-config

DisplayManager.authDir:		/var/lib/xdm
DisplayManager.errorLogFile:	/var/log/xdm.log
DisplayManager.pidFile:		/var/run/xdm.pid
DisplayManager.keyFile:		/etc/X11/xdm/xdm-keys
DisplayManager.servers:		/etc/X11/xdm/Xservers
DisplayManager.accessFile:	/etc/X11/xdm/Xaccess
DisplayManager.willing:		su nobody -s /bin/sh -c /etc/X11/xdm/Xwilling

DisplayManager*authorize:	true

DisplayManager._0.setup:	/etc/X11/xdm/archlinux/Xsetup
DisplayManager._0.startup:	/etc/X11/xdm/archlinux/Xstartup
DisplayManager._0.reset:	/etc/X11/xdm/TakeConsole

DisplayManager*chooser:		/usr/lib/X11/xdm/chooser
DisplayManager*resources:	/etc/X11/xdm/archlinux/Xresources
DisplayManager*session:		/etc/X11/xdm/Xsession
DisplayManager*authComplain:	true
DisplayManager*startup:		/etc/X11/xdm/archlinux/Xstartup
DisplayManager*reset:		/etc/X11/xdm/Xreset
DisplayManager*loginmoveInterval:	10

DisplayManager.requestPort:	0

/etc/X11/xdm/archlinux/Xsetup

#!/bin/sh

## the root window should have this color
xsetroot -solid "#000000" -cursor_name left_ptr

## these are all optional
/etc/X11/xdm/archlinux/buttons -geometry -0-0 &
xclock -geometry +0-0 &
# xconsole -daemon -geometry 640x200-0+0

/etc/X11/xdm/archlinux/Xstartup

#!/bin/sh

# Get rid of all clients started by Xsetup
xwininfo -root -children | grep '  0x' | cut -d' ' -f6 | xargs -n1 xkill -id

# Register a login (derived from GiveConsole as follows:)
exec /usr/bin/sessreg  -a -w /var/log/wtmp -u /var/run/utmp 	-x /etc/X11/xdm/Xservers -l $DISPLAY -h "" $USER

If you have any idea, please share it with me, i'm starting to run out.

Last edited by FeatherInk (2019-02-24 19:25:42)

seth · 2019-02-23 21:04:09

Your regular session (xfce?) is probably broken and probably because its config contains fixed name paths for your $HOME
=> i'd try to symlink-restore that.
xdm and startx (assuming that's "booting on console, without any DM enabled, I get the black screen again"?) use ~/.xinitrc, other DMs rather don't.
=> post your ~/.xinitrc

Since you've a dual GPU setup (optimus?) - is "other DM" GDM? I'd say it started wayland and you tried to run an xorg session from there and that falls flat.

FeatherInk · 2019-02-24 10:11:27

Thank you sir for your quick reply, this helped me set on the right path.

I finally figured the reason of the problem was related to my xfce4 "saved state" session, and it all makes sens because it was storing values under the previous username path, since it has been changed it couldn't resolve it anymore. Which variables exactly, this I don't know, although out of curiosity, I'd like to know which file exactly store those saved states.

Solution : Settings > Session and Startup > Session > Clear saved sessions

seth · 2019-02-24 12:36:44

Cool.
Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

Arch Linux

#1 2019-02-23 18:59:38

[Solved] Xorg black screen with archlinux-xdm

#2 2019-02-23 21:04:09

Re: [Solved] Xorg black screen with archlinux-xdm

#3 2019-02-24 10:11:27

Re: [Solved] Xorg black screen with archlinux-xdm

#4 2019-02-24 12:36:44

Re: [Solved] Xorg black screen with archlinux-xdm

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