Arch Linux

Adradra

Member

From: Latvia

Registered: 2024-10-01

Posts: 2

after loading in i see a black screen with mouse that i can move

hey, im a really really new arch linux (4 days to be exact) everything was like a dream. i use plasma. but yesterday after turning on the laptop it loaded everything and only see a black screen with a mouse that i can move, i cant find a way to log in or do anything at all and am very stuck. any tips would help.

zebulon

Member

Registered: 2008-10-20

Posts: 372

Re: after loading in i see a black screen with mouse that i can move

Yes I have the same issue after upgrading the system today. Nothing to do with your 'newness', my system has worked for years without issues, and you are very unlucky.

Now I am using Plasma on Wayland, Nvidia card with Nvidia driver (nvidia-dkms). Problem happened after an update including kernel and nvidia-dkms and a few other packages. Plasma is black but mouse cursor is visible.
It is still possible to switch to terminals using ctrl+alt+F3/4/5... I have not yet found a solution, will investigate more today.

seth

Member

Registered: 2012-09-03

Posts: 58,456

Re: after loading in i see a black screen with mouse that i can move

https://bbs.archlinux.org/viewtopic.php?id=299450

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zebulon

Member

Registered: 2008-10-20

Posts: 372

Re: after loading in i see a black screen with mouse that i can move

Ok so firstly I'm able to start sddm and launch Plasma under X11. It is only failing under Wayland.
If you have auto login in place, then go to a console using ctrl+alt+F3 (or F3 etc.) then edit file /etc/sddm.conf.d/kde_settings.conf with sudo nano to disable auto login (comment out using # symbol). Then restart (or use systemctl isolate to change from multi-user to graphical target). You should see SDDM and be able to login under Plasma X11.

zebulon

Member

Registered: 2008-10-20

Posts: 372

Re: after loading in i see a black screen with mouse that i can move

Just saw this being reported in the Upgrade issues forum. Downgrading the kernel and Nvidia fixes it. You may want to run your session under X11 until a fix is found.

zebulon

Member

Registered: 2008-10-20

Posts: 372

Re: after loading in i see a black screen with mouse that i can move

https://bbs.archlinux.org/viewtopic.php?id=299450

Oh thanks Seth.

jeffm

Member

From: victoria, australia

Registered: 2019-04-06

Posts: 23

Re: after loading in i see a black screen with mouse that i can move

Just now I upgraded kernel to 6.11.1-arch1-1  and had the blank screen + mouse issue. I am running Plasma , wayland and nvidia-dkms 560.35.03-4

When I add to kernel string - 'nvidia_drm.fbdev=1' , it runs as normal.

If you run zcat /proc/config.gz |grep -i nvidia you will see :

CONFIG_NET_VENDOR_NVIDIA=y
CONFIG_I2C_NVIDIA_GPU=m
# NVidia media platform drivers
# CONFIG_FB_NVIDIA is not set
CONFIG_HID_NVIDIA_SHIELD=m
CONFIG_NVIDIA_SHIELD_FF=y
CONFIG_TYPEC_NVIDIA_ALTMODE=m
CONFIG_NVIDIA_WMI_EC_BACKLIGHT=m

ie, "CONFIG_FB_NVIDIA is not set" in arch .config

this might be part of the problem, due to changes in kernel and /or nvidia driver

at least it is a workaround.

jeffm

Member

From: victoria, australia

Registered: 2019-04-06

Posts: 23

Re: after loading in i see a black screen with mouse that i can move

I should have included this link which might add some background to this problem -

https://forums.developer.nvidia.com/t/d … ove/307920

Adradra

Member

From: Latvia

Registered: 2024-10-01

Posts: 2

Re: after loading in i see a black screen with mouse that i can move

I was in the settings and changed the sddm to elarun and it somehow fixed it...? i have no idea what happened but now everything works fine. thanks for the help anyways

Nikolai5

Member

From: North West, England, UK

Registered: 2024-01-27

Posts: 179

Re: after loading in i see a black screen with mouse that i can move

I was in the settings and changed the sddm to elarun and it somehow fixed it...? i have no idea what happened but now everything works fine. thanks for the help anyways

That's likely an issue with displaying QT SDDM themes then.

Check what qt packages you have installed and what the dependencies are for the theme you were using previously.

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Desktop: Ryzen 7 1800X | AMD 7800XT | KDE Plasma
MacbookPro-2012 | MATE

zebulon

Member

Registered: 2008-10-20

Posts: 372

Re: after loading in i see a black screen with mouse that i can move

For me the nvidia-dkms 560.35.03-5 package update fixed the Wayland + Plasma problem.