Paradox Launcher not displaying [Linux]

[Chapien]

Note this happens with all of my PDX games, but I'm submitting this in CK3 as that is the game I collected logs from.

The paradox launcher seems to refuse to launch on my system. Judging from the logs, it launches, but then fails to display properly. I've attached the log from my most recent attempt to launch the game to this post. My system information is:
Operating System: Arch Linux
KDE Plasma Version: 6.3.3
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.2
Kernel Version: 6.13.7-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800X3D 8-Core Processor
Memory: 31.2 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 2060 SUPER

 

[AndrewT]

Note that the only supported distro is Ubuntu, but let's see if we can help you anyway here.


I know of two possible causes to this problem on Linux.

One is if you've used the Snap or Flatpack installs of Steam, which do not work well with our games. You need to use the native Linux client from Valve:
http://store.steampowered.com/about/
"Install Steam Now"

The other is an issue with Steam when you have Proton installed; Steam sometimes thinks you have the game on WIndows not Linux so installs the wrong version. If you see ck3.exe (ie the Windows executable) in your Steam folder for this game, that is the problem!
You can get past that as described here:
https://forum.paradoxplaza.com/foru...ork-linux-compatibility.1623688/post-29408827

All the best!

 

[Chapien]

Note that the only supported distro is Ubuntu, but let's see if we can help you anyway here.


I know of two possible causes to this problem on Linux.

One is if you've used the Snap or Flatpack installs of Steam, which do not work well with our games. You need to use the native Linux client from Valve:
http://store.steampowered.com/about/
"Install Steam Now"

The other is an issue with Steam when you have Proton installed; Steam sometimes thinks you have the game on WIndows not Linux so installs the wrong version. If you see ck3.exe (ie the Windows executable) in your Steam folder for this game, that is the problem!
You can get past that as described here:
https://forum.paradoxplaza.com/foru...ork-linux-compatibility.1623688/post-29408827

All the best!

Hey, thanks for the response. I am using the native version of Steam, and it seems the Linux version is correctly installed. It's interesting, because the problem is also on Age of Wonders 4, which is running through Proton and has the same problem.

If I install the paradox launcher without using Steam, it actually works just fine, but it seems the non-steam Paradox launcher cannot run steam versions of the game (unless I am misunderstanding the paradox launcher). Is there a way to make the paradox launcher work with steam games? Also, did you take a look at the logs I sent? It seems that the launcher does run, even going so far as to update my steam workshop mods -- it simply can't display for some reason:

2025-03-17T18:58:29.624Z (pid:13426) warn [container]: Main window did not initialize properly. Showing "unresponsive" dialog...
2025-03-17T18:58:29.680Z (pid:13426) warn [container]: Failed to display "unresponsive dialog": Cannot read properties of undefined (reading 'toLowerCase'), TypeError: Cannot read properties of undefined (reading 'toLowerCase')
at messageBox (node:electron/js2c/browser_init:2:25008)
at Object.showMessageBox (node:electron/js2c/browser_init:2:20346)
at ~/.paradoxlauncher/launcher-v2.2025.3/resources/app/dist/main/index.jsc:1:352946
at h (~/.paradoxlauncher/launcher-v2.2025.3/resources/app/dist/main/chunks/worker-commands-Cun2UEhs.jsc:1:4215)
at Generator.<anonymous> (~/.paradoxlauncher/launcher-v2.2025.3/resources/app/dist/main/chunks/worker-commands-Cun2UEhs.jsc:1:5585)
at Generator.next (~/.paradoxlauncher/launcher-v2.2025.3/resources/app/dist/main/chunks/worker-commands-Cun2UEhs.jsc:1:4648)
at t (~/.paradoxlauncher/launcher-v2.2025.3/resources/app/dist/main/index.jsc:1:888)
at c (~/.paradoxlauncher/launcher-v2.2025.3/resources/app/dist/main/index.jsc:1:1085)
at processTicksAndRejections (node:internal/process/task_queues:95:5)

 

[Chapien]

Addendum: running dowser through the terminal launches correctly (besides the "steam runtime not detected" error, that is). Only through steam does it not want to launch at all.

Could it be a Wayland compositor issue?

 

[Chapien]

Fixed it. I had --ozone-platform-hint=auto enabled as a system flag for all electron apps. Changing it to --ozone-platform-hint=x11for CK3 (and indeed all Paradox games) worked.