GZDoom Flatpak can't find IWADs

[Hyderomastgroningem]

Hi all I have recently moved to Linux (Zorin OS 17, Ubuntu 22.04 LTS base) and have installed GZDoom through Flatpak. I have my IWADs that worked with GZDoom on Windows but the app is unable to find them when I open it. I put them in both the suggested folder (see attached image) and a separate folder under my home directory, then edited gzdoom.ini to point to that folder and Flatseal to give it access to my home directory. Still it seems unable to find either of my IWAD collections.

 

If anyone is using the Flatpak version of GZDoom let me know how yours is set up so I can try copying it... not sure what is wrong here!

[Shepardus]

Hmm, I don't see anything obviously wrong with that. Would you mind sharing your gzdoom.ini under "[IWADSearch.Directories]" (taking care not to confuse it with "[FileSearch.Directories]" or "[SoundfontSearch.Directories]"), and also your Flatpak filesystem permissions? Here's how I have mine set up:

gzdoom.ini

[IWADSearch.Directories]
Path=.
Path=$DOOMWADDIR
Path=$HOME/.config/gzdoom
Path=$HOME/.local/share/games/doom
Path=/usr/local/share/doom
Path=/usr/local/share/games/doom
Path=/usr/share/doom
Path=/usr/share/games/doom
Path=$HOME/Doom/share/iwad

(The last line is the only one I added.)

 

Flatpak permissions (output from "flatpak info --show-permissions org.zdoom.GZDoom")

filesystems=/tmp;~/Doom/share:ro;~/.local/share/soundfonts:ro;~/Desktop:ro;

(I gave access to specific directories rather than the whole home directory, and :ro means read-only.)

[RataUnderground]

Weird. I just tried (Linux Mint) and putting the iwad in said folder, the game starts without problem.
Maybe by downloading Flatseal and activating these permissions?

[Hyderomastgroningem]

Here is how mine is set up:

[Shepardus]

Paths on Linux are case-sensitive, so make sure you're consistent with the capitalization of WADs/WADS.

[Hyderomastgroningem]

Sharp catch, thank you very much! Unfortunately now it is throwing a different error!

This file is also in both ~/My Games/Doom WADs/ and ~/.var/app/org.zdoom.GZDoom/.config/gzdoom/, and in the flatpak install directory under /var/ as well.

[Shepardus]

Undo your change to the DOOMWADDIR environment variable in Flatseal, the default value for the Flatpak is DOOMWADDIR=/app/share/games/doom and I think that's how GZDoom finds gzdoom.pk3 (via the Path=$DOOMWADDIR in the FileSearch.Directories config).

Edited June 18, 2024 by Shepardus

[Hyderomastgroningem]

That seems to have worked, but now it is complaining it can't find a font. This font is installed on my system under /usr/share/fonts/ but I have no idea where the 'widgets' folder it is looking for would be. There isn't a folder with that name anywhere within the flatpak or my home folder. Could something be wrong with the install? This is fresh from Flathub, version 4.12.2, and it is my second time trying to install it.

Edited June 18, 2024 by Hyderomastgroningem

[Shepardus]

widgets/noto/notosans-regular.ttf is within gzdoom.pk3, so I have no idea why it wouldn't be able to find that file if it's able to find gzdoom.pk3...

[Hyderomastgroningem]

Thanks for the hint, it turns out the gzdoom.pk3 I copied into ~/.var/app/org.zdoom.GZDoom/.config/gzdoom/ was the one from my old GZDoom install and not the one that came with the flatpak. All solved now :)