Fresh Neon Install - Logout Failure

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1

Just reinstalled Neon before posting. Haven’t made any configurations or installed anything new.

When I start a Wayland session and try to log out, it hangs in an empty CLI. I cannot open another TTY, input is completely unresponsive except doing an Alt+PrtScr+REISUB reboot.

It might also be helpful to note that if the screen idles into what should be the lock screen, the screen is distorted until I interact with the computer again. Also if I press enter at the Grub screen to just boot up, it hangs, but if I press an arrow key first (but not too soon), then it’s fine.

I tried debugging and working around this myself, but gave up and reinstalled. I haven’t made any configurations.

System Info:

Operating System: KDE neon 6.0
KDE Plasma Version: 6.1.4
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.8.0-40-generic (64-bit)
Graphics Platform: Wayland
Processors: 20 × 12th Gen Intel® Core™ i7-12700K
Memory: 31.1 GiB of RAM
Graphics Processor: NV174
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7D91
System Version: 4.0

I should also note that I have an Nvidia Geforce 3060, using the default open source drivers as per recommendation in the documentation.

2

Nouveau (the open source driver) should be considered the “emergency” driver. It will get you started, but with Nvidia, you need the proprietary driver.

In Neon, you need to do the following:

  1. Add the i386 architecture in konsole:

sudo dpkg --add-architecture i386

  1. Install the graphics drivers PPA:

sudo add-apt-repository ppa:graphics-drivers/ppa

  1. Install the ubuntu drivers package:

sudo apt install ubuntu-drivers

  1. Install the graphical driver manager from Kubuntu:

sudo apt install software-properties-qt

  1. Open Software Properties QT from your menu, you should find it under “Settings”. It should prompt you for your password. Navigate to the “Additional Drivers” tab.

  2. Install one of the proprietary drivers listed. I personally cannot get any single driver to work well with both Wayland and X11. Its one or the other. After much testing, I recommend:

---- if you are going to use Wayland exclusively (games and graphics penalty due to XWayland), then I suggest 555 for best performance
---- if you are going to use X11 exclusively, (best for games/cuda) then I suggest 550 for best stability
---- do not use 560 if you see it listed. It is for 40xx cards.

  1. Reboot

  2. If you decide the driver you chose is not working well for you and you want to try another one, DO NOT simply install the other driver over the installed one. Switch back to Nouveau in the Additional Drivers tab, and reboot. Then purge the old drivers:

sudo apt purge nvidia*
sudo apt clean
sudo apt autoremove

then install the new driver.

  1. Should something go really bad with the Nvidia driver and you cannot get it boot correctly, then boot to the recovery console (hit esc right after post), boot into recovery mode, enable networking, then drop to the root shell. Do the purge command again, then manually install the driver:

sudo apt install nvidia-driver-55X

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3

I had to manually start software-properties-qt but thank you, this worked.

Logging out and in is painfully slow, but it doesn’t outright stop.

4

I suggest trying another driver. I use an AMD CPU and you use Intel, so there may be a driver that plays better than those that I suggested on your rig. Or better yet, switch to X11. Nvidia and Wayland are still problematic.

The other thing you may want to look at is the CPU scheduler (power profiles). With 12th gen and above, the whole P core E core thing can be a bit tricky.