Your message dated Fri, 26 Dec 2025 05:52:51 +0000
with message-id <[email protected]>
and subject line Bug#1123731: fixed in wesnoth-1.18 1:1.18.6-1
has caused the Debian Bug report #1123731,
regarding wesnoth-1.18: autopkgtest fails with sdl2-compat
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1123731: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1123731
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Source: wesnoth-1.18
Severity: normal
Tags: patch
User: [email protected]
Usertags: regression
After discussion with SDL upstream, I'm looking into what needs to
happen for Debian (and indirectly Ubuntu) to replace "classic" SDL2 with
sdl2-compat, following in the footsteps of other distros like Arch and
Fedora. sdl2-compat is a reimplementation of the SDL 2 API using SDL 3.
One issue that I've noticed is that the autopkgtest for wesnoth-1.18 has
regressed. This seems to be because "classic" SDL2 will automatically
use the `offscreen` video driver if neither X11 nor Wayland works, but
there was an upstream change in SDL3 to make the `offscreen` video
driver only work if explicitly requested, similar to the behaviour that
the `dummy` video driver already had. The result is that on a CI system
with no X11 display or Wayland compositor, this test fails to initialize
SDL video when SDL is really sdl2-compat.
The upstream change seems reasonable to me - by default, games should
only use video drivers that actually display some pixels to the user! -
but I've opened https://github.com/libsdl-org/sdl2-compat/issues/561 to
query whether sdl2-compat should be bug-for-bug compatible with
"classic" SDL2 on this point. So I think this is really an issue in
wesnoth-1.18, more than an issue in sdl2-compat.
A workaround that I have confirmed does work is to run the test with
SDL_VIDEODRIVER="offscreen" (or "dummy" or "offscreen,dummy"), so in the
short term please consider applying the attached patch.
The xauth and xvfb dependencies can probably also be dropped, although I
haven't verified that.
In the longer term, for consideration upstream:
wesnoth --nogui still calls SDL_InitSubSystem(SDL_INIT_VIDEO), even
though it has been asked not to have a GUI. Perhaps ideally it wouldn't?
(But perhaps there's some feature of the video subsystem that it is
relying on?)
Or perhaps wesnoth could call SDL_SetHint(SDL_HINT_VIDEODRIVER, "offscreen")
(or "dummy", or "offscreen,dummy") when invoked with --nogui or equivalent?
Thanks,
smcv
>From 2292879cf54cb8b9ef33f4fd0fd85f105faffebc Mon Sep 17 00:00:00 2001
From: Simon McVittie <[email protected]>
Date: Sat, 20 Dec 2025 16:17:18 +0000
Subject: [PATCH] d/tests/control.in: Explicitly use offscreen or dummy video
driver
In a CI environment we can't expect to have a working X11 display or
Wayland compositor unless we explicitly run one, which this test
does not. In "classic" SDL2 this was masked by the offscreen video
driver being enabled by default, but in SDL3 + sdl2-compat the offscreen
video driver is only used if it is specifically requested, with the
reasonable justification that video drivers that don't show any pixels
to the user are only rarely what is wanted.
Closes: #-1
---
debian/tests/control | 2 +-
debian/tests/control.in | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/debian/tests/control b/debian/tests/control
index 12a7dad6ad5..64879f04f16 100644
--- a/debian/tests/control
+++ b/debian/tests/control
@@ -1,6 +1,6 @@
# Inspired by upstream CI script utils/CI/play_test_executor.sh
# This runs wesnoth with a multiplayer AI-only matchup.
-Test-Command: /usr/games/wesnoth-1.18 -m --controller 1:ai --controller 2:ai --nogui
+Test-Command: SDL_VIDEODRIVER=offscreen,dummy /usr/games/wesnoth-1.18 -m --controller 1:ai --controller 2:ai --nogui
Depends:
wesnoth-1.18,
xauth,
diff --git a/debian/tests/control.in b/debian/tests/control.in
index 582ad1ce727..3929ef24c5f 100644
--- a/debian/tests/control.in
+++ b/debian/tests/control.in
@@ -1,6 +1,6 @@
# Inspired by upstream CI script utils/CI/play_test_executor.sh
# This runs wesnoth with a multiplayer AI-only matchup.
-Test-Command: /usr/games/wesnoth-BRANCH -m --controller 1:ai --controller 2:ai --nogui
+Test-Command: SDL_VIDEODRIVER=offscreen,dummy /usr/games/wesnoth-BRANCH -m --controller 1:ai --controller 2:ai --nogui
Depends:
wesnoth-BRANCH,
xauth,
--
2.51.0
--- End Message ---
--- Begin Message ---
Source: wesnoth-1.18
Source-Version: 1:1.18.6-1
Done: Vincent Cheng <[email protected]>
We believe that the bug you reported is fixed in the latest version of
wesnoth-1.18, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Vincent Cheng <[email protected]> (supplier of updated wesnoth-1.18 package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Thu, 25 Dec 2025 21:05:52 -0800
Source: wesnoth-1.18
Built-For-Profiles: noudeb
Architecture: source
Version: 1:1.18.6-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Games Team <[email protected]>
Changed-By: Vincent Cheng <[email protected]>
Closes: 1123731
Changes:
wesnoth-1.18 (1:1.18.6-1) unstable; urgency=medium
.
[ Vincent Cheng ]
* New upstream stable release.
* Bump Standards-Version to 4.7.3, no changes needed.
.
[ Simon McVittie ]
* d/tests/control.in: Explicitly use offscreen video driver
(Closes: #1123731)
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