fabio

About zram, I would suggest starting to use lz4 (it should be faster) rather than zstd, given you already have plenty of RAM. Then, you may want to consider upgrading to Debian testing/13, it has already less known bugs than 12 ( https://bugs.debian.org/release-critical/ ) and it can support building 0ad using its packages, other than natively having 0ad 0.27.0.

https://gitea.wildfiregames.com/0ad/0ad/issues/5036 and:

Alternatively, you may set up the game to add an ally to help you against the AI.

Alternatively you may upgrade to Debian testing (which will become Debian 13 soon), where you can find a27.

It won't be available as it requires a newer rust version not available there. You may consider upgrading to Debian testing, which will become stable Debian 13 this summer.

The PPA is for 24.04/noble and 24.10/oracular (25.04/plucky already has 0.27.0). It looks like you have 22.04/jammy for which I didn't package 0ad. (I would suggest to upgrade to 24.04 anyway)

Ubuntu PPA with 0ad 0.27.0 + updated Mesa drivers: https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers/ EDIT: the PPA has 0ad 0.27.0 for 24.04/noble and 24.10/oracular (25.04/plucky already has 0.27.0). Older releases are not supported in the PPA (consider upgrading ).

Ideally there should be a way to force enable it, so that the issue could be reproduced and fixed in mesa.

nouveau is the open source driver, which is usually enabled by default, unless you install proprietary closed source NVidia driver. If the 'OpenGL ARB' issue happens with both driver, it may be a 0ad problem. About the longitudinal "shadows" issue with rc2, it looks like a mesa/nouveau issue (that can eventually be fixed in the driver) so if you want to contribute I would suggest to report it here: https://gitlab.freedesktop.org/mesa/mesa/-/issues

What do you mean with the game did not start on the outdated 'OpenGL ARB'? If you run it from command line, do you get some error when using 'OpenGL ARB'?

This looks like a mesa/nouveau issue, I remember a similar bug with other graphics cards in the past. Please report it here: https://gitlab.freedesktop.org/mesa/mesa/-/issues

Indeed it is not in release because it was added after the release, but it is in updates, which is enabled anyway by default for bug fixes: https://launchpad.net/ubuntu/+source/0ad

If you want to upgrade to Ubuntu 24.10, there is the proper package (no need to install flatpak or snap which can have issues like this).

It Is being added to Ubuntu 24.10/oracular and hopefully also to 24.04/noble, you can follow updates here: https://bugs.launchpad.net/bugs/2071550

A better option, also listed on https://trac.wildfiregames.com/wiki/BuildInstructions#DebianUbuntu: On older Debian / Ubuntu versions you may have to replace libwxgtk3.2-dev with libwxgtk3.0-gtk3-dev.