4 files changed, 17 insertions, 10 deletions
diff --git a/src/backend/headless.rs b/src/backend/headless.rs
index 5b8c7428..3c96f731 100644
--- a/src/backend/headless.rs
+++ b/src/backend/headless.rs
@@ -13,6 +13,7 @@ use smithay::backend::renderer::gles::GlesRenderer;
 use smithay::output::{Mode, Output, PhysicalProperties, Subpixel};
 use smithay::reexports::wayland_protocols::wp::presentation_time::server::wp_presentation_feedback;
 use smithay::utils::Size;
+use smithay::wayland::presentation::Refresh;
 
 use super::{IpcOutputMap, OutputId, RenderResult};
 use crate::niri::{Niri, RedrawState};
@@ -102,7 +103,7 @@ impl Headless {
         let mut presentation_feedbacks = niri.take_presentation_feedbacks(output, &states);
         presentation_feedbacks.presented::<_, smithay::utils::Monotonic>(
             get_monotonic_time(),
-            std::time::Duration::ZERO,
+            Refresh::Unknown,
             0,
             wp_presentation_feedback::Kind::empty(),
         );
diff --git a/src/backend/tty.rs b/src/backend/tty.rs
index b5991d3f..f9b9d33c 100644
--- a/src/backend/tty.rs
+++ b/src/backend/tty.rs
@@ -50,6 +50,7 @@ use smithay::wayland::dmabuf::{DmabufFeedback, DmabufFeedbackBuilder, DmabufGlob
 use smithay::wayland::drm_lease::{
     DrmLease, DrmLeaseBuilder, DrmLeaseRequest, DrmLeaseState, LeaseRejected,
 };
+use smithay::wayland::presentation::Refresh;
 use smithay_drm_extras::drm_scanner::{DrmScanEvent, DrmScanner};
 use wayland_protocols::wp::linux_dmabuf::zv1::server::zwp_linux_dmabuf_feedback_v1::TrancheFlags;
 use wayland_protocols::wp::presentation_time::server::wp_presentation_feedback;
@@ -1233,10 +1234,17 @@ impl Tty {
         // Mark the last frame as submitted.
         match surface.compositor.frame_submitted() {
             Ok(Some((mut feedback, target_presentation_time))) => {
-                let refresh = output_state
-                    .frame_clock
-                    .refresh_interval()
-                    .unwrap_or(Duration::ZERO);
+                let refresh = match output_state.frame_clock.refresh_interval() {
+                    Some(refresh) => {
+                        if output_state.frame_clock.vrr() {
+                            Refresh::Variable(refresh)
+                        } else {
+                            Refresh::Fixed(refresh)
+                        }
+                    }
+                    None => Refresh::Unknown,
+                };
+
                 // FIXME: ideally should be monotonically increasing for a surface.
                 let seq = meta.sequence as u64;
                 let mut flags = wp_presentation_feedback::Kind::Vsync
diff --git a/src/backend/winit.rs b/src/backend/winit.rs
index 500215f7..3472ff3e 100644
--- a/src/backend/winit.rs
+++ b/src/backend/winit.rs
@@ -3,7 +3,6 @@ use std::collections::HashMap;
 use std::mem;
 use std::rc::Rc;
 use std::sync::{Arc, Mutex};
-use std::time::Duration;
 
 use niri_config::{Config, OutputName};
 use smithay::backend::allocator::dmabuf::Dmabuf;
@@ -16,6 +15,7 @@ use smithay::reexports::calloop::LoopHandle;
 use smithay::reexports::wayland_protocols::wp::presentation_time::server::wp_presentation_feedback;
 use smithay::reexports::winit::dpi::LogicalSize;
 use smithay::reexports::winit::window::Window;
+use smithay::wayland::presentation::Refresh;
 
 use super::{IpcOutputMap, OutputId, RenderResult};
 use crate::niri::{Niri, RedrawState, State};
@@ -216,11 +216,9 @@ impl Winit {
             self.backend.submit(Some(damage)).unwrap();
 
             let mut presentation_feedbacks = niri.take_presentation_feedbacks(output, &res.states);
-            let mode = output.current_mode().unwrap();
-            let refresh = Duration::from_secs_f64(1_000f64 / mode.refresh as f64);
             presentation_feedbacks.presented::<_, smithay::utils::Monotonic>(
                 get_monotonic_time(),
-                refresh,
+                Refresh::Unknown,
                 0,
                 wp_presentation_feedback::Kind::empty(),
             );
diff --git a/src/pw_utils.rs b/src/pw_utils.rs
index a68ba9fe..95b7e9c0 100644
--- a/src/pw_utils.rs
+++ b/src/pw_utils.rs
@@ -1027,7 +1027,7 @@ fn allocate_buffer(
             .create_buffer_object_with_modifiers2::<()>(w, h, fourcc, modifiers, flags)
             .context("error creating GBM buffer object")?;
 
-        let modifier = bo.modifier().unwrap();
+        let modifier = bo.modifier();
         let buffer = GbmBuffer::from_bo(bo, false);
         Ok((buffer, modifier))
     }