As I mentioned on your post on Reddit [0], SDL2's video mode hooks are no-ops, which explains why SDL isn't changing the resolution. You could change SDL's code to use a different fullscreen mode. I am still struggling why you need to change the resolution with a modeset.
[0] https://www.reddit.com/r/wayland/comments/3mkhlf/weston_outputs_monitor_preferred_resolution/ On Thu, Oct 1, 2015 at 8:12 AM, Robert Folland <robert.foll...@me.com> wrote: > >> On 01 Oct 2015, at 17:08, Giulio Camuffo <giuliocamu...@gmail.com> wrote: >> >> 2015-10-01 18:03 GMT+03:00 Robert Folland <robert.foll...@me.com>: >>> On 01 Oct 2015, at 16:47, Giulio Camuffo <giuliocamu...@gmail.com> wrote: >>>> >>>> 2015-10-01 16:40 GMT+03:00 Robert Folland <robert.foll...@me.com>: >>>>> Hi, >>>>> >>>>> I need to display video in different resolutions (the resolution of the >>>>> recording), but with weston/wayland I always end up with the resolution >>>>> preferred by the monitor (1920x1080 in my current setup). >>>>> >>>>> SDL2 thinks it is producing e.g. 1280x720, but that is not the real >>>>> output to screen. This is probably due to weston scaling this to >>>>> 1920x1080 for the monitor, intstead of doing a mode switching, which is >>>>> what I require for my application. >>>> >>>> Why do you need a mode switch? Unless you're using a CRT the monitor >>>> will scale the image up internally, and usually weston can do it >>>> better. >>>> Anyway, I assume SDL uses wl_shell, not xdg_shell, and >>>> wl_shell_surface.set_fullscreen accepts several modes, and one of them >>>> asks the compositor to perform a mode switch. Note that it *asks* to, >>>> there is no way to force it, and that's by design. >>>> >>> >>> I’ve set up a box to be an input source to other equipment. So it is >>> providing input to another box instead of e.g cameras, playing out >>> uncompressed video. >>> So, it will not be displaying to monitors directly, but to a camera input >>> on another box. And that camera input is accepting a range of resolutions. >>> >>> When I check the resolution actually asked for from within SDL it says it >>> is producing my wanted resolution, but is is not actually apparing on the >>> output. So I suspect it is not able to force it to weston. >>> >>> The monitor/camera input receiving the signal is providing a list of >>> resolutions in its EDID data, and I guess one is preferred as a native >>> resolution. But as long as there are more entries in that EDID list, would >>> it not be a good idea to allow these to be “forced” through weston? >> >> It's not a good idea to let clients force modes, but it seems like you >> just want weston to always use that resolution, am i right? If so you >> can tell it to do so by setting the correct resolution in weston.ini. >> Check "man weston.ini" for details. >> > > Not really, this is a tool where users can change resolutions (actually > change video sequences) on the fly. But, it may work to restart weston on > every change, I can try that… thanks! > > -Robert > > > _______________________________________________ > wayland-devel mailing list > wayland-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/wayland-devel > -- Jasper _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/wayland-devel
