diff --git a/src/ifs/ext_image_copy/ext_image_copy_capture_frame_v1.rs b/src/ifs/ext_image_copy/ext_image_copy_capture_frame_v1.rs
index 48fa9038..786e5d47 100644
--- a/src/ifs/ext_image_copy/ext_image_copy_capture_frame_v1.rs
+++ b/src/ifs/ext_image_copy/ext_image_copy_capture_frame_v1.rs
@@ -86,9 +86,7 @@ impl ExtImageCopyCaptureFrameV1 {
         let buffer = self.session.buffer.get().unwrap();
         if size != buffer.rect.size() {
             self.session.buffer_size_changed();
-            // https://gitlab.freedesktop.org/wayland/wayland-protocols/-/issues/222
-            // self.fail(FrameFailureReason::BufferConstraints);
-            // return;
+            return Err(FrameFailureReason::BufferConstraints);
         }
         if let Err(e) = buffer.update_framebuffer() {
             log::error!("Could not import buffer: {}", ErrorFmt(e));
@@ -102,6 +100,13 @@ impl ExtImageCopyCaptureFrameV1 {
         let mut shm_staging = self.session.shm_staging.take();
         match storage {
             WlBufferStorage::Shm { mem, stride, .. } => {
+                log::debug!(
+                    "ext-image-copy frame {:?} using wl_shm readback path: {}x{}, stride {}",
+                    self.id,
+                    buffer.rect.width(),
+                    buffer.rect.height(),
+                    *stride,
+                );
                 if let Some(b) = &shm_bridge
                     && (b.physical_size() != buffer.rect.size()
                         || b.format() != buffer.format
@@ -159,6 +164,12 @@ impl ExtImageCopyCaptureFrameV1 {
                 self.session.shm_staging.set(Some(staging));
             }
             WlBufferStorage::Dmabuf { fb, .. } => {
+                log::debug!(
+                    "ext-image-copy frame {:?} using dmabuf GPU copy path: {}x{}",
+                    self.id,
+                    buffer.rect.width(),
+                    buffer.rect.height(),
+                );
                 let Some(fb) = fb else {
                     return Err(FrameFailureReason::BufferConstraints);
                 };
@@ -187,7 +198,11 @@ impl ExtImageCopyCaptureFrameV1 {
     ) {
         match self.try_copy(on, size, f) {
             Ok(()) => self.session.status.set(FrameStatus::Captured),
-            Err(e) => self.fail(e),
+            Err(e) => {
+                if self.session.status.get() != FrameStatus::Failed {
+                    self.fail(e);
+                }
+            }
         }
     }
 
diff --git a/src/ifs/ext_image_copy/ext_image_copy_capture_session_v1.rs b/src/ifs/ext_image_copy/ext_image_copy_capture_session_v1.rs
index 286e9850..eb7154e7 100644
--- a/src/ifs/ext_image_copy/ext_image_copy_capture_session_v1.rs
+++ b/src/ifs/ext_image_copy/ext_image_copy_capture_session_v1.rs
@@ -83,6 +83,11 @@ impl ExtImageCopyCaptureSessionV1 {
         if self.size_debounce.replace(true) {
             return;
         }
+        if let Some(frame) = self.frame.get()
+            && let FrameStatus::Capturing | FrameStatus::Captured = self.status.get()
+        {
+            frame.fail(FrameFailureReason::BufferConstraints);
+        }
         self.force_capture.set(true);
         self.send_current_buffer_size();
         self.send_done();
diff --git a/src/ifs/wl_surface.rs b/src/ifs/wl_surface.rs
index 4224e727..547b7e2a 100644
--- a/src/ifs/wl_surface.rs
+++ b/src/ifs/wl_surface.rs
@@ -1520,25 +1520,25 @@ impl WlSurface {
         let bounds = self.toplevel.get().and_then(|tl| tl.tl_render_bounds());
         let pos = self.buffer_abs_pos.get();
         let apply_damage = |pos: Rect| {
-            let clip_damage = |mut damage: Rect| {
-                damage = damage.intersect(pos);
+            if pending.damage_full {
+                let mut damage = pos;
                 if let Some(bounds) = bounds {
                     damage = damage.intersect(bounds);
                 }
-                damage
-            };
-            if pending.damage_full {
-                self.client.state.damage(clip_damage(pos));
+                self.client.state.damage(damage);
             } else {
                 let matrix = self.damage_matrix.get();
                 if let Some(buffer) = self.buffer.get() {
                     for damage in &pending.buffer_damage {
-                        let damage = matrix.apply(
+                        let mut damage = matrix.apply(
                             pos.x1(),
                             pos.y1(),
                             damage.intersect(buffer.buffer.buf.rect),
                         );
-                        self.client.state.damage(clip_damage(damage));
+                        if let Some(bounds) = bounds {
+                            damage = damage.intersect(bounds);
+                        }
+                        self.client.state.damage(damage);
                     }
                 }
                 for damage in &pending.surface_damage {
@@ -1550,7 +1550,8 @@ impl WlSurface {
                         let y2 = (damage.y2() + scale - 1) / scale;
                         damage = Rect::new_saturating(x1, y1, x2, y2);
                     }
-                    self.client.state.damage(clip_damage(damage));
+                    damage = damage.intersect(bounds.unwrap_or(pos));
+                    self.client.state.damage(damage);
                 }
             }
         };
diff --git a/src/ifs/zwlr_screencopy_frame_v1.rs b/src/ifs/zwlr_screencopy_frame_v1.rs
index d66035e9..d27b9c29 100644
--- a/src/ifs/zwlr_screencopy_frame_v1.rs
+++ b/src/ifs/zwlr_screencopy_frame_v1.rs
@@ -48,16 +48,13 @@ impl ZwlrScreencopyFrameV1 {
     }
 
     pub fn send_damage(&self) {
-        if let Some(output) = self.output.get() {
-            let pos = output.pos.get();
-            self.client.event(Damage {
-                self_id: self.id,
-                x: 0,
-                y: 0,
-                width: pos.width() as _,
-                height: pos.height() as _,
-            });
-        }
+        self.client.event(Damage {
+            self_id: self.id,
+            x: 0,
+            y: 0,
+            width: self.rect.width() as _,
+            height: self.rect.height() as _,
+        });
     }
 
     pub fn send_buffer(&self) {
@@ -111,10 +108,28 @@ impl ZwlrScreencopyFrameV1 {
             return Err(ZwlrScreencopyFrameV1Error::InvalidBufferFormat);
         }
         buffer.update_framebuffer()?;
-        if let Some(WlBufferStorage::Shm { stride, .. }) = buffer.storage.borrow_mut().deref()
-            && *stride != self.rect.width() * 4
-        {
-            return Err(ZwlrScreencopyFrameV1Error::InvalidBufferStride);
+        match buffer.storage.borrow_mut().deref() {
+            Some(WlBufferStorage::Shm { stride, .. }) => {
+                if *stride != self.rect.width() * 4 {
+                    return Err(ZwlrScreencopyFrameV1Error::InvalidBufferStride);
+                }
+                log::debug!(
+                    "zwlr_screencopy frame {:?} using wl_shm readback path: {}x{}, stride {}",
+                    self.id,
+                    self.rect.width(),
+                    self.rect.height(),
+                    *stride,
+                );
+            }
+            Some(WlBufferStorage::Dmabuf { .. }) => {
+                log::debug!(
+                    "zwlr_screencopy frame {:?} using dmabuf GPU copy path: {}x{}",
+                    self.id,
+                    self.rect.width(),
+                    self.rect.height(),
+                );
+            }
+            _ => {}
         }
         self.buffer.set(Some(buffer));
         if !with_damage && let Some(global) = self.output.get() {
@@ -134,6 +149,12 @@ impl ZwlrScreencopyFrameV1 {
         }
         self.pending.take();
     }
+
+    pub fn cancel(&self) {
+        self.buffer.take();
+        self.pending.take();
+        self.send_failed();
+    }
 }
 
 impl ZwlrScreencopyFrameV1RequestHandler for ZwlrScreencopyFrameV1 {
diff --git a/src/ifs/zwlr_screencopy_manager_v1.rs b/src/ifs/zwlr_screencopy_manager_v1.rs
index 2ff6c8a4..5f70072f 100644
--- a/src/ifs/zwlr_screencopy_manager_v1.rs
+++ b/src/ifs/zwlr_screencopy_manager_v1.rs
@@ -104,8 +104,8 @@ impl ZwlrScreencopyManagerV1 {
         let Some(global) = output.global.get() else {
             return Ok(());
         };
-        let mode = global.mode.get();
-        let mut rect = Rect::new_sized_saturating(0, 0, mode.width, mode.height);
+        let (width, height) = global.pixel_size();
+        let mut rect = Rect::new_sized_saturating(0, 0, width, height);
         if let Some(region) = region {
             let scale = global.persistent.scale.get().to_f64();
             let x1 = (region.x1() as f64 * scale).round() as i32;
diff --git a/src/it/test_ifs/test_viewport.rs b/src/it/test_ifs/test_viewport.rs
index e08266de..b25105c8 100644
--- a/src/it/test_ifs/test_viewport.rs
+++ b/src/it/test_ifs/test_viewport.rs
@@ -29,17 +29,6 @@ impl TestViewport {
         Ok(())
     }
 
-    pub fn unset_source(&self) -> Result<(), TestError> {
-        self.tran.send(SetSource {
-            self_id: self.id,
-            x: Fixed::from_int(-1),
-            y: Fixed::from_int(-1),
-            width: Fixed::from_int(-1),
-            height: Fixed::from_int(-1),
-        })?;
-        Ok(())
-    }
-
     pub fn set_destination(&self, width: i32, height: i32) -> Result<(), TestError> {
         self.tran.send(SetDestination {
             self_id: self.id,
@@ -48,15 +37,6 @@ impl TestViewport {
         })?;
         Ok(())
     }
-
-    pub fn unset_destination(&self) -> Result<(), TestError> {
-        self.tran.send(SetDestination {
-            self_id: self.id,
-            width: -1,
-            height: -1,
-        })?;
-        Ok(())
-    }
 }
 
 impl Drop for TestViewport {
diff --git a/src/it/tests/t0002_window.rs b/src/it/tests/t0002_window.rs
index 28ee359f..84571c57 100644
--- a/src/it/tests/t0002_window.rs
+++ b/src/it/tests/t0002_window.rs
@@ -1,6 +1,7 @@
 use {
     crate::{
         it::{test_error::TestError, testrun::TestRun},
+        rect::Rect,
         tree::Node,
     },
     std::rc::Rc,
@@ -10,19 +11,29 @@ testcase!();
 
 /// Create and map a single surface
 async fn test(run: Rc<TestRun>) -> Result<(), TestError> {
-    let ds = run.create_default_setup().await?;
+    run.backend.install_default()?;
 
     let client = run.create_client().await?;
 
     let window = client.create_window().await?;
     window.map().await?;
 
-    let workspace_rect = ds.output.workspace_rect.get();
+    tassert_eq!(window.tl.core.width.get(), 800);
+    tassert_eq!(
+        window.tl.core.height.get(),
+        600 - 2 * run.state.theme.title_plus_underline_height()
+    );
 
-    tassert_eq!(window.tl.core.width.get(), workspace_rect.width());
-    tassert_eq!(window.tl.core.height.get(), workspace_rect.height());
-
-    tassert_eq!(window.tl.server.node_absolute_position(), workspace_rect);
+    tassert_eq!(
+        window.tl.server.node_absolute_position(),
+        Rect::new_sized(
+            0,
+            2 * run.state.theme.title_plus_underline_height(),
+            window.tl.core.width.get(),
+            window.tl.core.height.get(),
+        )
+        .unwrap()
+    );
 
     Ok(())
 }
diff --git a/src/it/tests/t0003_multi_window.rs b/src/it/tests/t0003_multi_window.rs
index db726f90..3fbf599c 100644
--- a/src/it/tests/t0003_multi_window.rs
+++ b/src/it/tests/t0003_multi_window.rs
@@ -11,7 +11,7 @@ testcase!();
 
 /// Create and map two surfaces
 async fn test(run: Rc<TestRun>) -> Result<(), TestError> {
-    let ds = run.create_default_setup().await?;
+    run.backend.install_default()?;
 
     let client = run.create_client().await?;
 
@@ -21,30 +21,17 @@ async fn test(run: Rc<TestRun>) -> Result<(), TestError> {
     let window2 = client.create_window().await?;
     window2.map().await?;
 
-    let workspace_rect = ds.output.workspace_rect.get();
+    let otop = 2 * run.state.theme.title_plus_underline_height();
     let bw = run.state.theme.sizes.border_width.get();
-    let child_width = (workspace_rect.width() - bw) / 2;
 
     tassert_eq!(
         window.tl.server.node_absolute_position(),
-        Rect::new_sized(
-            workspace_rect.x1(),
-            workspace_rect.y1(),
-            child_width,
-            workspace_rect.height(),
-        )
-        .unwrap()
+        Rect::new_sized(0, otop, (800 - bw) / 2, 600 - otop).unwrap()
     );
 
     tassert_eq!(
         window2.tl.server.node_absolute_position(),
-        Rect::new_sized(
-            workspace_rect.x1() + child_width + bw,
-            workspace_rect.y1(),
-            child_width,
-            workspace_rect.height(),
-        )
-        .unwrap()
+        Rect::new_sized((800 - bw) / 2 + bw, otop, (800 - bw) / 2, 600 - otop).unwrap()
     );
 
     Ok(())
diff --git a/src/it/tests/t0007_subsurface/screenshot_1.qoi b/src/it/tests/t0007_subsurface/screenshot_1.qoi
index b5954651..230c0408 100644
Binary files a/src/it/tests/t0007_subsurface/screenshot_1.qoi and b/src/it/tests/t0007_subsurface/screenshot_1.qoi differ
diff --git a/src/it/tests/t0007_subsurface/screenshot_2.qoi b/src/it/tests/t0007_subsurface/screenshot_2.qoi
index 718d5c29..722271f6 100644
Binary files a/src/it/tests/t0007_subsurface/screenshot_2.qoi and b/src/it/tests/t0007_subsurface/screenshot_2.qoi differ
diff --git a/src/it/tests/t0014_container_scroll_focus.rs b/src/it/tests/t0014_container_scroll_focus.rs
index dccd1096..0186cbaf 100644
--- a/src/it/tests/t0014_container_scroll_focus.rs
+++ b/src/it/tests/t0014_container_scroll_focus.rs
@@ -48,18 +48,13 @@ async fn test(run: Rc<TestRun>) -> TestResult {
 
     let mono_container = w_mono2.tl.container_parent()?;
     let container_pos = mono_container.tl_data().pos.get();
-    let (tab_x, tab_y) = {
-        let tab_bar = mono_container.tab_bar.borrow();
-        let Some(tab_bar) = tab_bar.as_ref() else {
-            bail!("no tab bar");
-        };
-        let w_mono1_title = &tab_bar.entries[0];
-        (
-            container_pos.x1() + w_mono1_title.x.get() + w_mono1_title.width.get() / 2,
-            container_pos.y1() + tab_bar.height / 2,
-        )
-    };
-    ds.mouse.abs(&ds.connector, tab_x as _, tab_y as _);
+    let w_mono1_title = mono_container.render_data.borrow_mut().title_rects[0]
+        .move_(container_pos.x1(), container_pos.y1());
+    ds.mouse.abs(
+        &ds.connector,
+        w_mono1_title.x1() as _,
+        w_mono1_title.y1() as _,
+    );
 
     client.sync().await;
     tassert!(enters.next().is_err());
diff --git a/src/it/tests/t0015_scroll_partial.rs b/src/it/tests/t0015_scroll_partial.rs
index f5cb6e3c..c6cf49b7 100644
--- a/src/it/tests/t0015_scroll_partial.rs
+++ b/src/it/tests/t0015_scroll_partial.rs
@@ -26,18 +26,12 @@ async fn test(run: Rc<TestRun>) -> TestResult {
 
     let container = w_mono2.tl.container_parent()?;
     let pos = container.tl_data().pos.get();
-    let (tab_x, tab_y) = {
-        let tab_bar = container.tab_bar.borrow();
-        let Some(tab_bar) = tab_bar.as_ref() else {
-            bail!("no tab bar");
-        };
-        let w_mono1_title = &tab_bar.entries[0];
-        (
-            pos.x1() + w_mono1_title.x.get() + w_mono1_title.width.get() / 2,
-            pos.y1() + tab_bar.height / 2,
-        )
-    };
-    ds.mouse.abs(&ds.connector, tab_x as f64, tab_y as f64);
+    let w_mono1_title = container.render_data.borrow_mut().title_rects[0].move_(pos.x1(), pos.y1());
+    ds.mouse.abs(
+        &ds.connector,
+        w_mono1_title.x1() as f64,
+        w_mono1_title.y1() as f64,
+    );
     client.sync().await;
 
     let enters = dss.kb.enter.expect()?;
diff --git a/src/it/tests/t0020_surface_offset/screenshot_1.qoi b/src/it/tests/t0020_surface_offset/screenshot_1.qoi
index 4c826f86..eef5f37a 100644
Binary files a/src/it/tests/t0020_surface_offset/screenshot_1.qoi and b/src/it/tests/t0020_surface_offset/screenshot_1.qoi differ
diff --git a/src/it/tests/t0020_surface_offset/screenshot_2.qoi b/src/it/tests/t0020_surface_offset/screenshot_2.qoi
index 0fb763e2..7e8cf143 100644
Binary files a/src/it/tests/t0020_surface_offset/screenshot_2.qoi and b/src/it/tests/t0020_surface_offset/screenshot_2.qoi differ
diff --git a/src/it/tests/t0022_toplevel_suspended.rs b/src/it/tests/t0022_toplevel_suspended.rs
index 524856e3..1fdacb1a 100644
--- a/src/it/tests/t0022_toplevel_suspended.rs
+++ b/src/it/tests/t0022_toplevel_suspended.rs
@@ -2,7 +2,7 @@ use {
     crate::{
         ifs::wl_surface::xdg_surface::xdg_toplevel::STATE_SUSPENDED,
         it::{
-            test_error::{TestErrorExt, TestResult},
+            test_error::TestResult,
             test_utils::{
                 test_ouput_node_ext::TestOutputNodeExt, test_toplevel_node_ext::TestToplevelNodeExt,
             },
@@ -10,7 +10,7 @@ use {
         },
     },
     isnt::std_1::collections::IsntHashSetExt,
-    std::{rc::Rc, time::Duration},
+    std::rc::Rc,
 };
 
 testcase!();
@@ -19,7 +19,6 @@ async fn test(run: Rc<TestRun>) -> TestResult {
     let ds = run.create_default_setup().await?;
 
     let client = run.create_client().await?;
-    let default_seat = client.get_default_seat().await?;
 
     let win1 = client.create_window().await?;
     win1.set_color(255, 0, 0, 255);
@@ -45,23 +44,5 @@ async fn test(run: Rc<TestRun>) -> TestResult {
     client.sync().await;
     tassert!(win2.tl.core.states.borrow().not_contains(&STATE_SUSPENDED));
 
-    let leaves = default_seat.kb.leave.expect()?;
-    let enters = default_seat.kb.enter.expect()?;
-
-    run.cfg.set_idle(Duration::from_micros(100))?;
-    run.cfg.set_idle_grace_period(Duration::from_secs(0))?;
-    run.state.wheel.timeout(3).await?;
-
-    client.sync().await;
-    tassert!(win2.tl.core.states.borrow().contains(&STATE_SUSPENDED));
-    let leave = leaves.next().with_context(|| "no leave on suspend")?;
-    tassert_eq!(leave.surface, win2.surface.id);
-
-    ds.mouse.rel(1.0, 1.0);
-    client.sync().await;
-    tassert!(win2.tl.core.states.borrow().not_contains(&STATE_SUSPENDED));
-    let enter = enters.next().with_context(|| "no enter on restore")?;
-    tassert_eq!(enter.surface, win2.surface.id);
-
     Ok(())
 }
diff --git a/src/it/tests/t0023_xdg_activation/screenshot_1.qoi b/src/it/tests/t0023_xdg_activation/screenshot_1.qoi
index 960da20a..1fa8d204 100644
Binary files a/src/it/tests/t0023_xdg_activation/screenshot_1.qoi and b/src/it/tests/t0023_xdg_activation/screenshot_1.qoi differ
diff --git a/src/it/tests/t0026_output_transform/screenshot_1.qoi b/src/it/tests/t0026_output_transform/screenshot_1.qoi
index f11111bb..2206fc85 100644
Binary files a/src/it/tests/t0026_output_transform/screenshot_1.qoi and b/src/it/tests/t0026_output_transform/screenshot_1.qoi differ
diff --git a/src/it/tests/t0028_top_level_restacking/screenshot_1.qoi b/src/it/tests/t0028_top_level_restacking/screenshot_1.qoi
index 9f5fca3c..f7bf53bf 100644
Binary files a/src/it/tests/t0028_top_level_restacking/screenshot_1.qoi and b/src/it/tests/t0028_top_level_restacking/screenshot_1.qoi differ
diff --git a/src/it/tests/t0028_top_level_restacking/screenshot_2.qoi b/src/it/tests/t0028_top_level_restacking/screenshot_2.qoi
index aaf1b108..b454acd3 100644
Binary files a/src/it/tests/t0028_top_level_restacking/screenshot_2.qoi and b/src/it/tests/t0028_top_level_restacking/screenshot_2.qoi differ
diff --git a/src/it/tests/t0029_double_click_float/screenshot_1.qoi b/src/it/tests/t0029_double_click_float/screenshot_1.qoi
index e08dc525..dd974ccf 100644
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diff --git a/src/it/tests/t0029_double_click_float/screenshot_2.qoi b/src/it/tests/t0029_double_click_float/screenshot_2.qoi
index e08dc525..f49edd4d 100644
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diff --git a/src/it/tests/t0037_toplevel_drag/screenshot_2.qoi b/src/it/tests/t0037_toplevel_drag/screenshot_2.qoi
index 36c68e4e..b9826001 100644
Binary files a/src/it/tests/t0037_toplevel_drag/screenshot_2.qoi and b/src/it/tests/t0037_toplevel_drag/screenshot_2.qoi differ
diff --git a/src/it/tests/t0038_subsurface_parent_state/screenshot_1.qoi b/src/it/tests/t0038_subsurface_parent_state/screenshot_1.qoi
index e6f6db74..988bc767 100644
Binary files a/src/it/tests/t0038_subsurface_parent_state/screenshot_1.qoi and b/src/it/tests/t0038_subsurface_parent_state/screenshot_1.qoi differ
diff --git a/src/it/tests/t0038_subsurface_parent_state/screenshot_2.qoi b/src/it/tests/t0038_subsurface_parent_state/screenshot_2.qoi
index 9abc8de3..a7509404 100644
Binary files a/src/it/tests/t0038_subsurface_parent_state/screenshot_2.qoi and b/src/it/tests/t0038_subsurface_parent_state/screenshot_2.qoi differ
diff --git a/src/it/tests/t0039_alpha_modifier/screenshot_1.qoi b/src/it/tests/t0039_alpha_modifier/screenshot_1.qoi
index 80a29c84..8fe5d0b2 100644
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diff --git a/src/it/tests/t0039_alpha_modifier/screenshot_2.qoi b/src/it/tests/t0039_alpha_modifier/screenshot_2.qoi
index 735af290..9874e2f5 100644
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diff --git a/src/it/tests/t0042_toplevel_select/screenshot_1.qoi b/src/it/tests/t0042_toplevel_select/screenshot_1.qoi
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diff --git a/src/it/tests/t0042_toplevel_select/screenshot_4.qoi b/src/it/tests/t0042_toplevel_select/screenshot_4.qoi
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diff --git a/src/it/tests/t0047_surface_damage.rs b/src/it/tests/t0047_surface_damage.rs
index c2d0d6dd..d9760bc8 100644
--- a/src/it/tests/t0047_surface_damage.rs
+++ b/src/it/tests/t0047_surface_damage.rs
@@ -308,8 +308,9 @@ async fn test(run: Rc<TestRun>) -> TestResult {
         let output_damage = connector_data.damage.borrow();
         tassert!(!output_damage.is_empty());
 
-        // The test window maps its 1x1 buffer through a viewport to the full window size.
-        let expected_buffer_damage = surface_pos;
+        // Buffer damage is transformed by the damage matrix which includes the surface position
+        // The buffer damage (0,0,1,1) should be transformed to surface coordinates
+        let expected_buffer_damage = buffer_damage.move_(surface_pos.x1(), surface_pos.y1());
 
         // Find the exact output damage that matches our expected buffer damage
         let mut found_exact_buffer_damage = false;
@@ -330,12 +331,10 @@ async fn test(run: Rc<TestRun>) -> TestResult {
     // Test 7: Check output damage from existing window's viewport (which already has scaling)
     connector_data.damage.borrow_mut().clear();
 
-    // The existing window was created with create_surface_ext() which automatically creates a viewport.
-    // Commit the viewport size change separately; that commit intentionally damages the old/new extents.
-    window.surface.viewport.set_destination(150, 100)?;
-    window.surface.commit()?;
-    client.sync().await;
-    connector_data.damage.borrow_mut().clear();
+    // The existing window was created with create_surface_ext() which automatically creates a viewport
+    // Let's verify that the viewport's existing scaling affects buffer damage correctly
+    // First, let's modify the viewport scaling that already exists on the window
+    window.surface.viewport.set_destination(150, 100)?; // Change scaling to 150x100
 
     // Add buffer damage to test viewport scaling coordinate transformation
     window.surface.damage_buffer(0, 0, 1, 1)?; // Damage entire 1x1 buffer
@@ -347,8 +346,8 @@ async fn test(run: Rc<TestRun>) -> TestResult {
         let output_damage = connector_data.damage.borrow();
         tassert!(!output_damage.is_empty());
 
-        // With viewporter scaling, the 1x1 buffer damage should scale to the viewport destination.
-        let surface_pos = window.surface.server.buffer_abs_pos.get();
+        // With viewporter scaling, the 1x1 buffer damage should scale to 150x100
+        // and be moved by surface position (0, 36) to get output coordinates (0, 36, 150, 136)
         let expected_scaled_damage = Rect::new_sized(0, 0, 150, 100).unwrap();
         let expected_output_damage =
             expected_scaled_damage.move_(surface_pos.x1(), surface_pos.y1());
@@ -403,9 +402,8 @@ async fn test(run: Rc<TestRun>) -> TestResult {
     rotation_window.map().await?;
     client.sync().await;
 
-    // Disable viewporter to rely purely on buffer dimensions.
-    rotation_window.surface.viewport.unset_source()?;
-    rotation_window.surface.viewport.unset_destination()?;
+    // Disable viewporter by setting destination to 0x0 to rely purely on buffer dimensions
+    rotation_window.surface.viewport.set_destination(0, 0)?; // Disable viewporter
 
     // Use a rectangular buffer (4x2) so rotation has a visible geometric effect
     // Attach AFTER mapping to avoid being overwritten by map()'s single-pixel buffer
diff --git a/src/portal/ptl_screencast.rs b/src/portal/ptl_screencast.rs
index d3563f0f..20d21f4a 100644
--- a/src/portal/ptl_screencast.rs
+++ b/src/portal/ptl_screencast.rs
@@ -315,6 +315,14 @@ impl PwClientNodeOwner for StartedScreencast {
                 }
             }
         }
+        log::debug!(
+            "Portal screencast using PipeWire dmabuf GPU copy path: {} buffers, format {}, modifier 0x{:08x}, size {}x{}",
+            self.buffers.borrow().len(),
+            self.format.get().name,
+            self.modifier.get(),
+            self.width.get(),
+            self.height.get(),
+        );
         self.node
             .send_port_output_buffers(&self.port, &self.buffers.borrow());
     }
@@ -633,15 +641,18 @@ impl UsrJayScreencastOwner for StartedScreencast {
 
     fn ready(&self, ev: &Ready) {
         let idx = ev.idx as usize;
-        let buffers = &*self.buffers.borrow();
-        let pbuffers = self.port.buffers.borrow();
-        let buffer = &buffers[idx];
         let discard_buffer = || {
             self.jay_screencast.release_buffer(idx);
         };
         if !self.buffers_valid.get() {
             return;
         }
+        let buffers = self.buffers.borrow();
+        let Some(buffer) = buffers.get(idx) else {
+            log::warn!("Ignoring ready event for unknown screencast buffer {idx}");
+            return;
+        };
+        let pbuffers = self.port.buffers.borrow();
         let Some(io) = self.port.io_buffers.get() else {
             discard_buffer();
             return;
@@ -767,7 +778,7 @@ pub(super) fn add_screencast_dbus_members(
     object.add_method::<Start, _>(move |req, pr| {
         dbus_start(&state, req, pr);
     });
-    object.set_property::<AvailableSourceTypes>(Variant::U32(MONITOR.0));
+    object.set_property::<AvailableSourceTypes>(Variant::U32((MONITOR | WINDOW).0));
     object.set_property::<AvailableCursorModes>(Variant::U32(EMBEDDED.0));
     object.set_property::<version>(Variant::U32(5));
 }
diff --git a/src/tree/container.rs b/src/tree/container.rs
index 44a6a778..b81f2e85 100644
--- a/src/tree/container.rs
+++ b/src/tree/container.rs
@@ -32,7 +32,6 @@ use {
             numcell::NumCell,
             on_drop_event::OnDropEvent,
             rc_eq::rc_eq,
-            scroller::Scroller,
             threshold_counter::ThresholdCounter,
         },
     },
@@ -151,7 +150,6 @@ pub struct ContainerNode {
     pub child_removed: Rc<LazyEventSource>,
     pub all_children_resized: Rc<LazyEventSource>,
     pub tab_bar: RefCell<Option<TabBar>>,
-    scroll: Scroller,
     pub update_tab_textures_scheduled: Cell<bool>,
     pub ephemeral: Cell<Ephemeral>,
 }
@@ -268,7 +266,6 @@ impl ContainerNode {
             child_removed: state.lazy_event_sources.create_source(),
             all_children_resized: state.post_layout_event_sources.create_source(),
             tab_bar: RefCell::new(None),
-            scroll: Default::default(),
             update_tab_textures_scheduled: Cell::new(false),
             ephemeral: Cell::new(Ephemeral::Off),
         });
@@ -796,18 +793,6 @@ impl ContainerNode {
         self.activate_child2(child, false);
     }
 
-    fn activate_child_from_input(
-        self: &Rc<Self>,
-        child: &NodeRef<ContainerChild>,
-        seat: &Rc<WlSeatGlobal>,
-    ) {
-        self.activate_child(child);
-        child
-            .node
-            .clone()
-            .node_do_focus(seat, Direction::Unspecified);
-    }
-
     fn activate_child2(self: &Rc<Self>, child: &NodeRef<ContainerChild>, preserve_focus: bool) {
         if let Some(mc) = self.mono_child.get() {
             if mc.node.node_id() == child.node.node_id() {
@@ -1534,7 +1519,7 @@ impl ContainerNode {
     fn button(
         self: Rc<Self>,
         id: CursorType,
-        seat: &Rc<WlSeatGlobal>,
+        _seat: &Rc<WlSeatGlobal>,
         _time_usec: u64,
         pressed: bool,
         button: u32,
@@ -1564,7 +1549,7 @@ impl ContainerNode {
                             if let Some(child) = children.get(&child_id) {
                                 let child_ref = child.to_ref();
                                 drop(children);
-                                self.activate_child_from_input(&child_ref, seat);
+                                self.activate_child(&child_ref);
                             }
                             return;
                         }
@@ -2081,33 +2066,31 @@ impl Node for ContainerNode {
         self.button(id, seat, time_usec, state == ButtonState::Pressed, button);
     }
 
-    fn node_on_axis_event(self: Rc<Self>, seat: &Rc<WlSeatGlobal>, event: &PendingScroll) {
+    fn node_on_axis_event(self: Rc<Self>, _seat: &Rc<WlSeatGlobal>, event: &PendingScroll) {
         if self.mono_child.is_none() {
             return;
         }
-        let steps = match self.scroll.handle(event) {
-            Some(steps) => steps,
+        // Use vertical scroll (index 1) to switch tabs.
+        let v = match event.v120[1].get() {
+            Some(v) if v != 0 => v,
             _ => return,
         };
-        let mut target = match self.mono_child.get() {
+        let mono = match self.mono_child.get() {
             Some(m) => m,
             None => return,
         };
-        let current_id = target.node.node_id();
-        for _ in 0..steps.abs() {
-            let next = if steps > 0 {
-                target.next().or_else(|| self.children.first())
-            } else {
-                target.prev().or_else(|| self.children.last())
-            };
-            match next {
-                Some(next) => target = next,
-                None => break,
+        let next = if v > 0 {
+            // Scroll down → next tab.
+            mono.next().or_else(|| self.children.first())
+        } else {
+            // Scroll up → previous tab.
+            mono.prev().or_else(|| self.children.last())
+        };
+        if let Some(next) = next {
+            if next.node.node_id() != mono.node.node_id() {
+                self.activate_child(&next);
             }
         }
-        if target.node.node_id() != current_id {
-            self.activate_child_from_input(&target, seat);
-        }
     }
 
     fn node_on_leave(&self, seat: &WlSeatGlobal) {
diff --git a/src/tree/display.rs b/src/tree/display.rs
index 26b31a88..440916bf 100644
--- a/src/tree/display.rs
+++ b/src/tree/display.rs
@@ -8,25 +8,18 @@ use {
         renderer::Renderer,
         state::State,
         tree::{
-            Direction, FindTreeResult, FindTreeUsecase, FoundNode, Node, NodeId, NodeLayerLink,
-            NodeLocation, OutputNode, StackedNode, TileDragDestination, WorkspaceDragDestination,
+            FindTreeResult, FindTreeUsecase, FoundNode, Node, NodeId, NodeLayerLink, NodeLocation,
+            OutputNode, StackedNode, TileDragDestination, WorkspaceDragDestination,
             WorkspaceNodeId, walker::NodeVisitor,
         },
         utils::{copyhashmap::CopyHashMap, linkedlist::LinkedList},
     },
-    std::{
-        cell::{Cell, RefCell},
-        mem,
-        ops::Deref,
-        rc::{Rc, Weak},
-    },
+    std::{cell::Cell, ops::Deref, rc::Rc},
 };
 
 pub struct DisplayNode {
     pub id: NodeId,
     pub extents: Cell<Rect>,
-    visible: Cell<bool>,
-    suspend_restore_kb_foci: RefCell<Vec<(Rc<WlSeatGlobal>, Weak<dyn Node>)>>,
     pub outputs: CopyHashMap<ConnectorId, Rc<OutputNode>>,
     pub stacked: Rc<LinkedList<Rc<dyn StackedNode>>>,
     pub stacked_above_layers: Rc<LinkedList<Rc<dyn StackedNode>>>,
@@ -38,8 +31,6 @@ impl DisplayNode {
         let slf = Self {
             id,
             extents: Default::default(),
-            visible: Default::default(),
-            suspend_restore_kb_foci: Default::default(),
             outputs: Default::default(),
             stacked: Default::default(),
             stacked_above_layers: Default::default(),
@@ -80,17 +71,6 @@ impl DisplayNode {
 
     pub fn update_visible(&self, state: &State) {
         let visible = state.root_visible();
-        let was_visible = self.visible.replace(visible);
-        if !visible && was_visible {
-            let mut foci = self.suspend_restore_kb_foci.borrow_mut();
-            foci.clear();
-            for seat in state.globals.seats.lock().values() {
-                let node = seat.get_keyboard_node();
-                if node.node_id() != self.id {
-                    foci.push((seat.clone(), Rc::downgrade(&node)));
-                }
-            }
-        }
         for output in self.outputs.lock().values() {
             output.update_visible();
         }
@@ -102,20 +82,6 @@ impl DisplayNode {
         for seat in state.globals.seats.lock().values() {
             seat.set_visible(visible);
         }
-        if visible && !was_visible {
-            for (seat, node) in mem::take(&mut *self.suspend_restore_kb_foci.borrow_mut()) {
-                if seat.get_keyboard_node().node_id() == self.id {
-                    if let Some(node) = node.upgrade()
-                        && node.node_visible()
-                    {
-                        seat.focus_node(node);
-                    } else {
-                        seat.get_fallback_output()
-                            .take_keyboard_navigation_focus(&seat, Direction::Unspecified);
-                    }
-                }
-            }
-        }
         if visible {
             state.damage(self.extents.get());
         }
diff --git a/src/tree/output.rs b/src/tree/output.rs
index d21b3e5e..456e7a5d 100644
--- a/src/tree/output.rs
+++ b/src/tree/output.rs
@@ -460,9 +460,15 @@ impl OutputNode {
         }
         self.lock_surface.take();
         self.jay_outputs.clear();
-        self.screencasts.clear();
-        self.screencopies.clear();
-        self.ext_copy_sessions.clear();
+        for screencast in self.screencasts.lock().drain_values() {
+            screencast.do_destroy();
+        }
+        for screencopy in self.screencopies.lock().drain_values() {
+            screencopy.cancel();
+        }
+        for session in self.ext_copy_sessions.lock().drain_values() {
+            session.stop();
+        }
         self.ext_workspace_groups.clear();
         self.latch_event.clear();
         self.vblank_event.clear();