diff --git a/src/ifs/wl_drm.rs b/src/ifs/wl_drm.rs
index cd23f39f..16185832 100644
--- a/src/ifs/wl_drm.rs
+++ b/src/ifs/wl_drm.rs
@@ -121,7 +121,7 @@ impl WlDrm {
         };
         let formats = ctx.formats();
         let format = match formats.get(&req.format) {
-            Some(f) => *f,
+            Some(f) => f.format,
             None => return Err(CreatePrimeBufferError::InvalidFormat(req.format)),
         };
         let mut dmabuf = DmaBuf {
diff --git a/src/ifs/wl_surface/xwindow.rs b/src/ifs/wl_surface/xwindow.rs
index 1f8af5ad..0f05b6fd 100644
--- a/src/ifs/wl_surface/xwindow.rs
+++ b/src/ifs/wl_surface/xwindow.rs
@@ -11,8 +11,9 @@ use {
         render::Renderer,
         state::State,
         tree::{
-            FindTreeResult, FoundNode, Node, NodeId, NodeVisitor, SizedNode, SizedToplevelNode,
-            ToplevelData, ToplevelNode, WorkspaceNode,
+            FindTreeResult, FoundNode, FullscreenData, Node, NodeId, NodeVisitor,
+            SizedFullscreenNode, SizedNode, SizedToplevelNode, ToplevelData, ToplevelNode,
+            WorkspaceNode,
         },
         utils::{
             clonecell::CloneCell, copyhashmap::CopyHashMap, linkedlist::LinkedNode,
@@ -31,7 +32,6 @@ use {
     },
     thiserror::Error,
 };
-use crate::tree::{FullscreenData, SizedFullscreenNode};
 
 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
 pub enum XInputModel {
@@ -508,10 +508,15 @@ impl SizedToplevelNode for Xwindow {
     fn set_fullscreen(self: &Rc<Self>, fullscreen: bool) {
         if fullscreen {
             if let Some(ws) = self.workspace.get() {
-                self.fullscreen_data.set_fullscreen(&self.data.state, self.clone(), &ws.output.get());
+                self.fullscreen_data.set_fullscreen(
+                    &self.data.state,
+                    self.clone(),
+                    &ws.output.get(),
+                );
             }
         } else {
-            self.fullscreen_data.unset_fullscreen(&self.data.state, self.clone());
+            self.fullscreen_data
+                .unset_fullscreen(&self.data.state, self.clone());
         }
     }
 
@@ -538,7 +543,12 @@ impl SizedFullscreenNode for Xwindow {
     }
 
     fn title(&self) -> String {
-        self.data.info.title.borrow_mut().clone().unwrap_or_default()
+        self.data
+            .info
+            .title
+            .borrow_mut()
+            .clone()
+            .unwrap_or_default()
     }
 }
 
diff --git a/src/ifs/zwp_linux_buffer_params_v1.rs b/src/ifs/zwp_linux_buffer_params_v1.rs
index 38c73a7f..51f3c7ea 100644
--- a/src/ifs/zwp_linux_buffer_params_v1.rs
+++ b/src/ifs/zwp_linux_buffer_params_v1.rs
@@ -11,7 +11,6 @@ use {
         },
         video::{
             dmabuf::{DmaBuf, DmaBufPlane},
-            INVALID_MODIFIER,
         },
         wire::{zwp_linux_buffer_params_v1::*, WlBufferId, ZwpLinuxBufferParamsV1Id},
     },
@@ -37,6 +36,7 @@ pub struct ZwpLinuxBufferParamsV1 {
     pub parent: Rc<ZwpLinuxDmabufV1>,
     planes: RefCell<AHashMap<u32, Add>>,
     used: Cell<bool>,
+    modifier: Cell<Option<u64>>,
     pub tracker: Tracker<Self>,
 }
 
@@ -47,6 +47,7 @@ impl ZwpLinuxBufferParamsV1 {
             parent: parent.clone(),
             planes: RefCell::new(Default::default()),
             used: Cell::new(false),
+            modifier: Cell::new(None),
             tracker: Default::default(),
         }
     }
@@ -71,8 +72,9 @@ impl ZwpLinuxBufferParamsV1 {
     fn add(self: &Rc<Self>, parser: MsgParser<'_, '_>) -> Result<(), AddError> {
         let req: Add = self.parent.client.parse(&**self, parser)?;
         let modifier = ((req.modifier_hi as u64) << 32) | req.modifier_lo as u64;
-        if modifier != INVALID_MODIFIER {
-            return Err(AddError::InvalidModifier(modifier));
+        match self.modifier.get() {
+            Some(m) if m != modifier => return Err(AddError::MixedModifiers(modifier, m)),
+            _ => self.modifier.set(Some(modifier)),
         }
         let plane = req.plane_idx;
         if plane > MAX_PLANE {
@@ -98,14 +100,21 @@ impl ZwpLinuxBufferParamsV1 {
         };
         let formats = ctx.formats();
         let format = match formats.get(&format) {
-            Some(f) => *f,
+            Some(f) => f,
             None => return Err(DoCreateError::InvalidFormat(format)),
         };
+        let modifier = match self.modifier.get() {
+            Some(m) => m,
+            _ => return Err(DoCreateError::NoPlanes),
+        };
+        if !format.modifiers.contains_key(&modifier) {
+            return Err(DoCreateError::InvalidModifier(modifier));
+        }
         let mut dmabuf = DmaBuf {
             width,
             height,
-            format,
-            modifier: INVALID_MODIFIER,
+            format: format.format,
+            modifier,
             planes: vec![],
         };
         let mut planes: Vec<_> = self.planes.borrow_mut().drain().map(|v| v.1).collect();
@@ -128,7 +137,7 @@ impl ZwpLinuxBufferParamsV1 {
         let buffer = Rc::new(WlBuffer::new_dmabuf(
             buffer_id,
             &self.parent.client,
-            format,
+            format.format,
             &img,
         ));
         track!(self.parent.client, buffer);
@@ -223,8 +232,8 @@ pub enum AddError {
     MaxPlane,
     #[error(transparent)]
     ClientError(Box<ClientError>),
-    #[error("The modifier {0} is not supported")]
-    InvalidModifier(u64),
+    #[error("Tried to add a plane with modifier {0} that differs from a previous modifier {1}")]
+    MixedModifiers(u64, u64),
     #[error("The plane {0} was already set")]
     AlreadySet(u32),
 }
@@ -239,6 +248,10 @@ pub enum DoCreateError {
     NoRenderContext,
     #[error("The format {0} is not supported")]
     InvalidFormat(u32),
+    #[error("No planes were added")]
+    NoPlanes,
+    #[error("The modifier {0} is not supported")]
+    InvalidModifier(u64),
     #[error("Plane {0} was not set")]
     MissingPlane(usize),
     #[error("Could not import the buffer")]
diff --git a/src/ifs/zwp_linux_dmabuf_v1.rs b/src/ifs/zwp_linux_dmabuf_v1.rs
index b35684b3..ffaf142c 100644
--- a/src/ifs/zwp_linux_dmabuf_v1.rs
+++ b/src/ifs/zwp_linux_dmabuf_v1.rs
@@ -6,7 +6,6 @@ use {
         leaks::Tracker,
         object::Object,
         utils::buffd::{MsgParser, MsgParserError},
-        video::INVALID_MODIFIER,
         wire::{zwp_linux_dmabuf_v1::*, ZwpLinuxDmabufV1Id},
     },
     std::rc::Rc,
@@ -39,9 +38,11 @@ impl ZwpLinuxDmabufV1Global {
         if let Some(ctx) = client.state.render_ctx.get() {
             let formats = ctx.formats();
             for format in formats.values() {
-                obj.send_format(format.drm);
+                obj.send_format(format.format.drm);
                 if version >= MODIFIERS_SINCE_VERSION {
-                    obj.send_modifier(format.drm, INVALID_MODIFIER);
+                    for modifier in format.modifiers.values() {
+                        obj.send_modifier(format.format.drm, modifier.modifier);
+                    }
                 }
             }
         }
diff --git a/src/render.rs b/src/render.rs
index 58df24e4..2514c651 100644
--- a/src/render.rs
+++ b/src/render.rs
@@ -80,6 +80,8 @@ pub enum RenderError {
     SurfacelessContext,
     #[error("`eglQueryDmaBufFormatsEXT` failed")]
     QueryDmaBufFormats,
+    #[error("`eglQueryDmaBufModifiersEXT` failed")]
+    QueryDmaBufModifiers,
     #[error(transparent)]
     DrmError(#[from] DrmError),
     #[error("The GLES driver does not support the XRGB8888 format")]
diff --git a/src/render/egl/display.rs b/src/render/egl/display.rs
index a09e0bea..16079cc4 100644
--- a/src/render/egl/display.rs
+++ b/src/render/egl/display.rs
@@ -26,16 +26,28 @@ use {
             sys::{eglInitialize, EGL_PLATFORM_GBM_KHR},
             RenderError,
         },
-        video::{dmabuf::DmaBuf, drm::Drm, gbm::GbmDevice, INVALID_MODIFIER},
+        video::{dmabuf::DmaBuf, drm::Drm, gbm::GbmDevice, INVALID_MODIFIER, LINEAR_MODIFIER},
     },
-    ahash::AHashMap,
+    ahash::{AHashMap},
     std::{ptr, rc::Rc},
 };
 
+#[derive(Debug)]
+pub struct EglFormat {
+    pub format: &'static Format,
+    pub modifiers: AHashMap<u64, EglModifier>,
+}
+
+#[derive(Debug)]
+pub struct EglModifier {
+    pub modifier: u64,
+    pub external_only: bool,
+}
+
 #[derive(Debug)]
 pub struct EglDisplay {
     pub exts: DisplayExt,
-    pub formats: Rc<AHashMap<u32, &'static Format>>,
+    pub formats: Rc<AHashMap<u32, EglFormat>>,
     pub gbm: Rc<GbmDevice>,
     pub dpy: EGLDisplay,
 }
@@ -201,7 +213,7 @@ impl Drop for EglDisplay {
     }
 }
 
-unsafe fn query_formats(dpy: EGLDisplay) -> Result<AHashMap<u32, &'static Format>, RenderError> {
+unsafe fn query_formats(dpy: EGLDisplay) -> Result<AHashMap<u32, EglFormat>, RenderError> {
     let mut vec = vec![];
     let mut num = 0;
     let res = PROCS.eglQueryDmaBufFormatsEXT(dpy, num, ptr::null_mut(), &mut num);
@@ -218,8 +230,73 @@ unsafe fn query_formats(dpy: EGLDisplay) -> Result<AHashMap<u32, &'static Format
     let formats = formats();
     for fmt in vec {
         if let Some(format) = formats.get(&(fmt as u32)) {
-            res.insert(format.drm, *format);
+            res.insert(format.drm, EglFormat {
+                format: *format,
+                modifiers: query_modifiers(dpy, fmt)?,
+            });
         }
     }
     Ok(res)
 }
+
+unsafe fn query_modifiers(
+    dpy: EGLDisplay,
+    format: EGLint,
+) -> Result<AHashMap<u64, EglModifier>, RenderError> {
+    let mut mods = vec![];
+    let mut ext_only = vec![];
+    let mut num = 0;
+    let res = PROCS.eglQueryDmaBufModifiersEXT(
+        dpy,
+        format,
+        num,
+        ptr::null_mut(),
+        ptr::null_mut(),
+        &mut num,
+    );
+    if res != EGL_TRUE {
+        return Err(RenderError::QueryDmaBufModifiers);
+    }
+    mods.reserve_exact(num as usize);
+    ext_only.reserve_exact(num as usize);
+    let res = PROCS.eglQueryDmaBufModifiersEXT(
+        dpy,
+        format,
+        num,
+        mods.as_mut_ptr(),
+        ext_only.as_mut_ptr(),
+        &mut num,
+    );
+    if res != EGL_TRUE {
+        return Err(RenderError::QueryDmaBufModifiers);
+    }
+    mods.set_len(num as usize);
+    ext_only.set_len(num as usize);
+    let mut res = AHashMap::new();
+    res.insert(
+        INVALID_MODIFIER,
+        EglModifier {
+            modifier: INVALID_MODIFIER,
+            external_only: false,
+        },
+    );
+    if mods.is_empty() {
+        res.insert(
+            LINEAR_MODIFIER,
+            EglModifier {
+                modifier: LINEAR_MODIFIER,
+                external_only: false,
+            },
+        );
+    }
+    for (modifier, ext_only) in mods.iter().copied().zip(ext_only.iter().copied()) {
+        res.insert(
+            modifier as _,
+            EglModifier {
+                modifier: modifier as _,
+                external_only: ext_only == EGL_TRUE,
+            },
+        );
+    }
+    Ok(res)
+}
diff --git a/src/render/renderer/context.rs b/src/render/renderer/context.rs
index d9cdc360..56b98562 100644
--- a/src/render/renderer/context.rs
+++ b/src/render/renderer/context.rs
@@ -24,6 +24,7 @@ use {
     },
     uapi::ustr,
 };
+use crate::render::egl::display::EglFormat;
 
 pub(super) struct TexProg {
     pub(super) prog: GlProgram,
@@ -116,7 +117,7 @@ impl RenderContext {
         self.render_node.clone()
     }
 
-    pub fn formats(&self) -> Rc<AHashMap<u32, &'static Format>> {
+    pub fn formats(&self) -> Rc<AHashMap<u32, EglFormat>> {
         self.ctx.dpy.formats.clone()
     }
 
diff --git a/src/xwayland/xwm.rs b/src/xwayland/xwm.rs
index e887d405..3b705004 100644
--- a/src/xwayland/xwm.rs
+++ b/src/xwayland/xwm.rs
@@ -7,7 +7,7 @@ use {
         },
         rect::Rect,
         state::State,
-        tree::{Node, SizedNode},
+        tree::{Node, SizedNode, ToplevelNode},
         utils::{bitflags::BitflagsExt, errorfmt::ErrorFmt, linkedlist::LinkedList},
         wire::WlSurfaceId,
         wire_xcon::{
@@ -47,7 +47,6 @@ use {
     },
     uapi::OwnedFd,
 };
-use crate::tree::{ToplevelNode};
 
 atoms! {
     Atoms;
@@ -369,7 +368,9 @@ impl Wm {
             XWaylandEvent::Activate(window) => self.activate_window(Some(&window)).await,
             XWaylandEvent::ActivateRoot => self.activate_window(None).await,
             XWaylandEvent::Close(window) => self.close_window(&window).await,
-            XWaylandEvent::SetFullscreen(window, fullscreen) => self.set_fullscreen(&window, fullscreen).await,
+            XWaylandEvent::SetFullscreen(window, fullscreen) => {
+                self.set_fullscreen(&window, fullscreen).await
+            }
         }
     }