Arch Linux

WaterKnight

Member

Registered: 2022-04-21

Posts: 1

GDM, Wayland and NVIDIA DRM can't start Gnome-Xorg session

Hi guys,

I started with nvidia Optimus, then moved to discrete nvidia only (updating bios) and everything was working correctly on X11.

I decided to try Wayland Gnome running using nvidia-drm drivers. I have the following configs

/etc/default/grub

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="Arch"
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3 quiet nvidia-drm.modeset=1"
GRUB_CMDLINE_LINUX=""

# Preload both GPT and MBR modules so that they are not missed
GRUB_PRELOAD_MODULES="part_gpt part_msdos"

# Uncomment to enable booting from LUKS encrypted devices
#GRUB_ENABLE_CRYPTODISK=y

# Set to 'countdown' or 'hidden' to change timeout behavior,
# press ESC key to display menu.
GRUB_TIMEOUT_STYLE=menu

# Uncomment to use basic console
GRUB_TERMINAL_INPUT=console

# Uncomment to disable graphical terminal
#GRUB_TERMINAL_OUTPUT=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=auto

# Uncomment to allow the kernel use the same resolution used by grub
GRUB_GFXPAYLOAD_LINUX=keep

# Uncomment if you want GRUB to pass to the Linux kernel the old parameter
# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx"
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY=true

/etc/mkinitcpio.conf

# MODULES
# The following modules are loaded before any boot hooks are
# run.  Advanced users may wish to specify all system modules
# in this array.  For instance:
#     MODULES=(piix ide_disk reiserfs)
MODULES=(nvidia nvidia_modeset nvidia_uvm nvidia_drm)

# BINARIES
# This setting includes any additional binaries a given user may
# wish into the CPIO image.  This is run last, so it may be used to
# override the actual binaries included by a given hook
# BINARIES are dependency parsed, so you may safely ignore libraries
BINARIES=()

# FILES
# This setting is similar to BINARIES above, however, files are added
# as-is and are not parsed in any way.  This is useful for config files.
FILES=()

 HOOKS
# This is the most important setting in this file.  The HOOKS control the
# modules and scripts added to the image, and what happens at boot time.
# Order is important, and it is recommended that you do not change the
# order in which HOOKS are added.  Run 'mkinitcpio -H <hook name>' for
# help on a given hook.
# 'base' is _required_ unless you know precisely what you are doing.
# 'udev' is _required_ in order to automatically load modules
# 'filesystems' is _required_ unless you specify your fs modules in MODULES
# Examples:
##   This setup specifies all modules in the MODULES setting above.
##   No raid, lvm2, or encrypted root is needed.
#    HOOKS=(base)
#
##   This setup will autodetect all modules for your system and should
##   work as a sane default
#    HOOKS=(base udev autodetect block filesystems)
#
##   This setup will generate a 'full' image which supports most systems.
##   No autodetection is done.
#    HOOKS=(base udev block filesystems)
#
##   This setup assembles a pata mdadm array with an encrypted root FS.
##   Note: See 'mkinitcpio -H mdadm' for more information on raid devices.
#    HOOKS=(base udev block mdadm encrypt filesystems)
#
##   This setup loads an lvm2 volume group on a usb device.
#    HOOKS=(base udev block lvm2 filesystems)
#
##   NOTE: If you have /usr on a separate partition, you MUST include the
#    usr, fsck and shutdown hooks.
#HOOKS=(base udev autodetect modconf block lvm2 ilesystems keyboard fsck)
HOOKS=(base udev block lvm2 filesystems)

 COMPRESSION
# Use this to compress the initramfs image. By default, zstd compression
# is used. Use 'cat' to create an uncompressed image.
#COMPRESSION="zstd"
#COMPRESSION="gzip"
#COMPRESSION="bzip2"
#COMPRESSION="lzma"
#COMPRESSION="xz"
#COMPRESSION="lzop"
#COMPRESSION="lz4"

# COMPRESSION_OPTIONS
# Additional options for the compressor
#COMPRESSION_OPTIONS=()

I don't know if hooks are properly configured but just to mention I am using lvm

I also needed to execute

ln -s /dev/null /etc/udev/rules.d/61-gdm.rules

to get GDM wayland working. GDM documentation mentions this if  you are using Gnome 42 and nvidia drivers 510 https://wiki.archlinux.org/title/GDM#Wa … DIA_driver

I can access Gnome Wayland, but as not all apps works properly (electron ones) I also want to be able to execute Gnome Xorg and Awesome.

But when I try to login to Xorg sessions I am not being able. I type password, blaack screen and back to login. The gdm log is: https://pastebin.com/sathi3jm

Last edited by WaterKnight (2022-04-21 19:34:48)

gca

Member

Registered: 2021-06-08

Posts: 63

Re: GDM, Wayland and NVIDIA DRM can't start Gnome-Xorg session

Use Xorg backend
The Wayland backend is used by default, and the Xorg backend is used only if the Wayland backend cannot be started. You may wish to use the Xorg backend instead if, for example:

GDM crashes
To use the Xorg backend by default, uncomment the following line in /etc/gdm/custom.conf:

#WaylandEnable=false

try to comment out as documentated in https://wiki.archlinux.org/title/GDM#Wa … DIA_driver

as an newbie i suggest to login in a tty and try execute startx (if still exists )