On Tue, 25 Feb 2025 12:07:11 GMT, Alexander Zvegintsev <azveg...@openjdk.org> wrote:
> Wayland clients are by design not allowed to change the resolution in Wayland. > XRandR in Xwayland is just an emulation, it doesn't actually change the > desktop resolution. This emulation is per window/x11 client, so different > clients can have different emulated resolutions at the same time. > > Any request to get the current display mode from the system will always > return the original screen resolution, even if we are in emulated resolution. > So with this fix, we store the last display mode set so that we can react > correctly to the displayChanged event later. > > --- > > There are two system side fixes related to this issue, which causes missing > ConfigureNotify events to be emitted when an emulated resolution change > occurs: > > 1. https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/731 - emits > when the resolution changes to an emulated one > 2. https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/890 - emits > when the resolution changes to a native one > > The second one is only available in GnomeShell 43+ (e.g. Ubuntu 22.10+), so > one of the tests is excluded for versions below that. > > --- > > Testing looks good (manual + automated). This pull request has now been integrated. Changeset: 29de20db Author: Alexander Zvegintsev <azveg...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/29de20dbc22e0b68698a1b9cb1241ae5861a6b9a Stats: 88 lines in 4 files changed: 84 ins; 1 del; 3 mod 8280991: [XWayland] No displayChanged event after setDisplayMode call Reviewed-by: honkar, prr ------------- PR: https://git.openjdk.org/jdk/pull/23774
