No Wayland on Bookworm Testing with Nvidia Optimus laptop

[jorgesgk]

I have an Optimus laptop (Xiaomi Mi Notebook Pro 2018 equipped with an i7 8th gen + Nvidia Gefore MX150). Everything works ok (well, not Cheese, but that's a whole different topic), but whenever I install the proprietary Nvidia drivers, the option to select the Gnome session is simply not there.

I managed to fix this by commenting out from

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/lib/udev/rules.d/61-gdm.rules

the following lines:

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# Check if suspend/resume services necessary for working wayland support is ava>
#TEST{0711}!="/usr/bin/nvidia-sleep.sh", GOTO="gdm_disable_wayland"
#TEST{0711}!="/usr/lib/systemd/system-sleep/nvidia", GOTO="gdm_disable_wayland"
#IMPORT{program}="/bin/sh -c \"sed -e 's/: /=/g' -e 's/\([^[:upper:]]\)\([[:upp>
#ENV{NVIDIA_PRESERVE_VIDEO_MEMORY_ALLOCATIONS}!="1", GOTO="gdm_disable_wayland"
#IMPORT{program}="/bin/sh -c 'echo NVIDIA_HIBERNATE=`systemctl is-enabled nvidi>
#ENV{NVIDIA_HIBERNATE}!="enabled", GOTO="gdm_disable_wayland"
#IMPORT{program}="/bin/sh -c 'echo NVIDIA_RESUME=`systemctl is-enabled nvidia-r>
#ENV{NVIDIA_RESUME}!="enabled", GOTO="gdm_disable_wayland"
#IMPORT{program}="/bin/sh -c 'echo NVIDIA_SUSPEND=`systemctl is-enabled nvidia->
#ENV{NVIDIA_SUSPEND}!="enabled", GOTO="gdm_disable_wayland"
#LABEL="gdm_nvidia_end"

and this one:

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# If this is a hybrid graphics laptop with vendor nvidia driver, disable wayland
#LABEL="gdm_hybrid_nvidia_laptop_check"
#TEST!="/run/udev/gdm-machine-is-laptop", GOTO="gdm_hybrid_nvidia_laptop_check_>
#TEST!="/run/udev/gdm-machine-has-hybrid-graphics", GOTO="gdm_hybrid_nvidia_lap>
#TEST!="/run/udev/gdm-machine-has-vendor-nvidia-driver", GOTO="gdm_hybrid_nvidi>
#GOTO="gdm_disable_wayland"
#LABEL="gdm_hybrid_nvidia_laptop_check_end"

An then, in

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/etc/default/grub adding GRUB_CMDLINE_LINUX="nvidia-drm.modeset=1"

And running

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sudo update-grub

I can't help but wonder why is this not documented? It's a legit question, this is not a procedure I ever had to do on Fedora, OpenSuse or Ubuntu and it takes aware from the easiness of Debian (with which I wanted to replace Fedora, to be honest, as I liked very much Debian's approach to stability still providing testing images, a rolling release and backports.

It is also my understanding that only setting

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nvidia-drm.modeset=1

would be enough, which clearly isn't the case. It is surprising to me because in the other distros were much easier to get working, and I had the understanding that Debian was rather eas(ier) than the others (except for, maybe, Ubuntu).

[@ttila]

I remember that you shoud edit the gdm3 config file to run a wayland session, make a search over the web.

Wayland Is a work in progress, i found after months of research the way to use Nvidia closed driver with wayland.

I think you will be able to run gnome wayland with your discrete Intel video card.

[sunrat]

Debian's approach to stability still providing testing images, a rolling release and backports.

Debian doesn't provide a rolling release, only Stable or development versions. Bookworm is Testing currently, a development version. If you have found a bug, you should check for bug reports and submit one if your issue is not reported already.

[jorgesgk]

Debian's approach to stability still providing testing images, a rolling release and backports.

Debian doesn't provide a rolling release, only Stable or development versions. Bookworm is Testing currently, a development version. If you have found a bug, you should check for bug reports and submit one if your issue is not reported already.

Sorry, I may have not been clear. By rolling I meant Sid, which is, of course, unstable (and rolling).

Regarding the bug thing, I agree, I must report the bugs I find (it's the price of using testing). However, the issue here is I'm not sure there's a bug. I read nowhere that I had to uncomment those lines, but neither did I read about the nomodeset flag in GRUB, and that seems pretty well known. I will happily report a bug if it's indeed a bug, but I'm not so sure of that. Hence my question. If a developers says "this shouldn't be like that", I'll gladly report the bug as I would love Debian to get better.

[jorgesgk]

I remember that you shoud edit the gdm3 config file to run a wayland session, make a search over the web.

Wayland Is a work in progress, i found after months of research the way to use Nvidia closed driver with wayland.

I think you will be able to run gnome wayland with your discrete Intel video card.

This is all I found. Thanks for your help nonetheless.

I, however, don't want to disable the Nvidia card as I appreciate the flexibility of having the Intel one for the usual stuff and the Nvidia for whatever may require higher performance.

[@ttila]

This is all I found. Thanks for your help nonetheless.

I, however, don't want to disable the Nvidia card as I appreciate the flexibility of having the Intel one for the usual stuff and the Nvidia for whatever may require higher performance.

enable

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WaylandEnable=true

in your /etc/gdm3/custom.conf, i cannot test it because i use SDDM instead of gdm3.

You needn't to disable anything, just run the DE waylandized with the intel card and, as you write, the nvidia card when you need power.

[jorgesgk]

Thanks @ttila, but if I do that, there lock screen will not show anything and stay deep black, with no way of changing anything or logging in at all...

It seems I need GDM to be in Xorg first before I switch to the Wayland Gnome session.

[@ttila]

You need to select the gnome session type (xorg/wayland) in the login screen, gdm can start amy session.

1- lnstall a Windows compositor, like Weston. Can you login in Weston??
2- Login in a xorg session and launch in a terminal Weston, It runs?

The drm option Is needed when you use a single Nvidia card or as a primary video card. Try to disable the option ".... drm=1" from grub, Just to test.

EDIT: do you install libnvidia-egl-gbm1 and libnvidia-allocator1 packages?

[jorgesgk]

Hi @ttila. I followed your steps and, I'm sorry for what I posted before. I took out the nomodeset and now the GDM does indeed work with

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WaylandEnable=true

However, I have no option for using Gnome Wayland.
I do have indeed the libnvidia-egl-gbm1 and libnvidia-allocator1 packages installed.

[@ttila]

So, haven't you an option to select xorg/wayland in the greeter?? It should be there:

https://wiki.debian.org/Wayland#GNOME_. ... .20.2B-.29

[jorgesgk]

Exactly! I only have Gnome and Gnome classic, and both are Xorg, but not Nvidia.

[Vsrq]

Created this account just to thank you. I run Debian Unstable and have been trying to get Wayland to work on my optimus laptop. I followed these exact steps, and it worked like a charm!