feat: prefer highest refresh rate at native resolution

populate_modes() now selects the mode with the highest refresh rate at
the preferred (native) resolution instead of blindly using the EDID
PREFERRED flag. This ensures high-refresh panels (120 Hz, 144 Hz, …)
are used out-of-the-box, including in the greeter session.

Also fix libcosmic → libcosmic-yoda package reference.

Cargo.lock

@@ -1009,7 +1009,7 @@ dependencies = [
  "indexmap 2.13.0",
  "jiff",
  "keyframe",
- "libcosmic",
+ "libcosmic-yoda",
  "libdisplay-info",
  "libsystemd",
  "log-panics",
@@ -1115,7 +1115,7 @@ dependencies = [
 
 [[package]]
 name = "cosmic-randr-shell"
-version = "0.1.0"
+version = "1.3.0"
 dependencies = [
  "kdl",
  "slotmap",
@@ -3139,7 +3139,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
 
 [[package]]
-name = "libcosmic"
+name = "libcosmic-yoda"
 version = "0.1.0-yoda.2"
 dependencies = [
  "apply",

Cargo.toml

@@ -43,7 +43,7 @@ iced_tiny_skia = { path = "../libcosmic/iced/tiny_skia" }
 iced_graphics = { path = "../libcosmic/iced/graphics", features = ["geometry"] }
 indexmap = "2.13"
 keyframe = "1.1.1"
-cosmic = { package = "libcosmic", path = "../libcosmic", default-features = false, features = [
+cosmic = { package = "libcosmic-yoda", path = "../libcosmic", default-features = false, features = [
     "tokio",
     "wayland",
     "multi-window",

src/backend/kms/device.rs

@@ -1269,15 +1269,26 @@ fn populate_modes(
 ) -> Result<()> {
     let conn_info = drm.get_connector(conn, false)?;
     let max_bpc = drm_helpers::get_max_bpc(drm, conn)?.map(|(_val, range)| range.end.min(16));
-    let Some(mode) = conn_info
+    let preferred = conn_info
         .modes()
         .iter()
         .find(|mode| mode.mode_type().contains(ModeTypeFlags::PREFERRED))
         .copied()
-        .or(conn_info.modes().first().copied())
-    else {
+        .or(conn_info.modes().first().copied());
+    let Some(preferred) = preferred else {
         anyhow::bail!("No mode found");
     };
+    // Prefer the highest refresh rate at the native resolution so that
+    // high-refresh panels (120 Hz, 144 Hz, …) are used out-of-the-box
+    // without a pre-existing outputs.ron config.
+    let preferred_size = preferred.size();
+    let mode = conn_info
+        .modes()
+        .iter()
+        .filter(|m| m.size() == preferred_size)
+        .max_by_key(|m| drm_helpers::calculate_refresh_rate(**m))
+        .copied()
+        .unwrap_or(preferred);
 
     let refresh_rate = drm_helpers::calculate_refresh_rate(mode);
     let output_mode = OutputMode {