** Description changed: [ Impact ] There are a number of gtk4 tests (build-time, and again at autopkgtest time) that are failing on s390x *only* when run in the combination of an updated mesa package (25.0.7-0ubuntu0.24.04.1) in Noble. The problem seems to be in the GtkWidgetPaintable widget, which isn't triggering the "invalidate-contents" signal. This signal should be triggered every time the canvas has been repainted, and it is used in the tests to know when it is safe to capture the rendered picture and compare it with the expected results. Setting `GSK_RENDERER=cairo` uses pure software rendering, and makes this work again. s390x is not a desktop platform, there are no desktop images for it, and gtk4 is not seeded in that architecture. While it would be best to fully understand what is making these tests fail, it's best to use this workaround for now in that architecture only, so that users in other architectures can benefit from the mesa and gtk4 updates. - This bug affects not only GTK4 build, but also Gnome Control Center - build. + This bug affects not only the GTK4 package, but also any GTK4 app with + build tests or autopkgtests, such as Gnome Control Center: + https://launchpad.net/ubuntu/+source/gnome-control- + center/1:46.7-0ubuntu0.24.04.3 [ Test Plan ] The failure manifests itself in the build-time tests, which are again repeated at autopkgtest time. Therefore, the test plan consists of: - no build failure in any platform, and specifically s390x - no autopkgtest failure in any platform, and specifically s390x Specifically, we also don't want any change in the number of tests run in non-s390x architectures. amd64 and arm64: x11: Ok: 655 Expected Fail: 0 Fail: 0 Unexpected Pass: 0 Skipped: 13 Timeout: 0 wayland: Ok: 657 Expected Fail: 0 Fail: 0 Unexpected Pass: 0 Skipped: 11 Timeout: 0 armhf: x11: Ok: 578 Expected Fail: 0 Fail: 0 Unexpected Pass: 0 Skipped: 2 Timeout: 0 wayland: Ok: 569 Expected Fail: 0 Fail: 0 Unexpected Pass: 0 Skipped: 11 Timeout: 0 i386: x11: Ok: 576 Expected Fail: 0 Fail: 0 Unexpected Pass: 0 Skipped: 2 Timeout: 0 wayland: Ok: 567 Expected Fail: 0 Fail: 0 Unexpected Pass: 0 Skipped: 11 Timeout: 0 ppc64el: x11: Ok: 655 Expected Fail: 0 Fail: 0 Unexpected Pass: 0 Skipped: 13 Timeout: 0 wayland: Ok: 657 Expected Fail: 0 Fail: 0 Unexpected Pass: 0 Skipped: 11 Timeout: 0 riscv64: Build time tests are not run: dh: command-omitted: The call to "debian/rules override_dh_auto_test" was omitted due to "DEB_BUILD_OPTIONS=nocheck" s390x should have no tests with a timeout result in proposed. [ Where problems could occur ] The available patch forces Cairo as the renderer in s390x, affecting all GTK4 applications. The renderer has limited capabilities vs the other OpenGL or Vulkan renderers, which may affect the look of some GTK4 applications. However, s390x is not a primary desktop architecture and the alternative would be non-working applications since Mesa is misbehaving in s390x.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2122598 Title: Gtk4 deb package doesn't build in s390x architecture To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk4/+bug/2122598/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
