diff --git a/boot/yboot/src/main.rs b/boot/yboot/src/main.rs
index de24c6c6..5324aed2 100644
--- a/boot/yboot/src/main.rs
+++ b/boot/yboot/src/main.rs
@@ -16,7 +16,7 @@ use log::{debug, error, info};
 use uefi::{
     prelude::*,
     proto::{
-        console::gop::{GraphicsOutput, PixelFormat},
+        console::gop::{self, GraphicsOutput, PixelFormat},
         device_path::DevicePath,
         loaded_image::LoadedImage,
         media::{file::Directory, fs::SimpleFileSystem},
@@ -32,23 +32,31 @@ use yboot_proto::{
     LoadProtocolV1, LOADER_MAGIC,
 };
 
-use crate::{mem::MemoryDescriptorExt, protocol_ext::GraphicsOutputExt};
+use crate::mem::MemoryDescriptorExt;
+
+fn mode_score(mode: &gop::Mode) -> usize {
+    let (w, h) = mode.info().resolution();
+    let mut size_score = w * h;
+    if w > 1920 || h > 1080 {
+        // Don't pick too large sizes
+        size_score = 0;
+    }
+    size_score
+}
 
 fn setup_framebuffer(bs: &BootServices, fb: &mut FramebufferOption) -> Result<(), Error> {
     let gop_handle = bs.get_handle_for_protocol::<GraphicsOutput>()?;
     let mut gop = bs.open_protocol_exclusive::<GraphicsOutput>(gop_handle)?;
 
-    // Find the requested mode
-    let mode = gop.match_mode(fb.req_width, fb.req_height).ok_or_else(|| {
-        error!(
-            "Requested mode is not supported: {}x{}",
-            fb.req_width, fb.req_height
-        );
+    let mode = gop.modes().max_by_key(mode_score).ok_or_else(|| {
+        error!("No mode found");
         Error::new(Status::INVALID_PARAMETER, ())
     })?;
 
     gop.set_mode(&mode)?;
 
+    let (res_width, res_height) = mode.info().resolution();
+
     let mut result = gop.frame_buffer();
 
     let format = match mode.info().pixel_format() {
@@ -57,8 +65,8 @@ fn setup_framebuffer(bs: &BootServices, fb: &mut FramebufferOption) -> Result<()
         _ => 0,
     };
 
-    fb.res_width = fb.req_width;
-    fb.res_height = fb.req_height;
+    fb.res_width = res_width as _;
+    fb.res_height = res_height as _;
     fb.res_address = result.as_mut_ptr() as _;
     fb.res_stride = mode.info().stride() as u64 * 4;
     fb.res_size = result.size() as _;
diff --git a/kernel/arch/aarch64/src/lib.rs b/kernel/arch/aarch64/src/lib.rs
index fc8d4e45..beeea550 100644
--- a/kernel/arch/aarch64/src/lib.rs
+++ b/kernel/arch/aarch64/src/lib.rs
@@ -1,5 +1,5 @@
 #![no_std]
-#![feature(naked_functions, decl_macro)]
+#![feature(decl_macro)]
 #![allow(clippy::new_without_default)]
 
 extern crate alloc;
@@ -40,11 +40,9 @@ impl CpuData for PerCpuData {}
 static IPI_QUEUES: OneTimeInit<Vec<IpiQueue<ArchitectureImpl>>> = OneTimeInit::new();
 pub static CPU_COUNT: AtomicUsize = AtomicUsize::new(1);
 
-#[naked]
+#[unsafe(naked)]
 extern "C" fn idle_task(_: usize) -> ! {
-    unsafe {
-        core::arch::naked_asm!("1: nop; b 1b");
-    }
+    core::arch::naked_asm!("1: nop; b 1b");
 }
 
 impl ArchitectureImpl {
diff --git a/kernel/arch/riscv64/src/lib.rs b/kernel/arch/riscv64/src/lib.rs
index 5b7c919d..1f3bbcdd 100644
--- a/kernel/arch/riscv64/src/lib.rs
+++ b/kernel/arch/riscv64/src/lib.rs
@@ -1,4 +1,4 @@
-#![feature(decl_macro, naked_functions)]
+#![feature(decl_macro)]
 #![no_std]
 
 extern crate alloc;
@@ -60,11 +60,9 @@ impl CpuData for PerCpuData {
     }
 }
 
-#[naked]
+#[unsafe(naked)]
 extern "C" fn idle_task(_: usize) -> ! {
-    unsafe {
-        core::arch::naked_asm!("1: nop; j 1b");
-    }
+    core::arch::naked_asm!("1: nop; j 1b");
 }
 
 impl ArchitectureImpl {
diff --git a/kernel/arch/x86_64/src/lib.rs b/kernel/arch/x86_64/src/lib.rs
index baee22a6..c98e2441 100644
--- a/kernel/arch/x86_64/src/lib.rs
+++ b/kernel/arch/x86_64/src/lib.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![allow(clippy::new_without_default)]
-#![feature(naked_functions)]
 
 extern crate alloc;
 
@@ -69,18 +68,16 @@ impl PerCpuData {
 static IPI_QUEUES: OneTimeInit<Vec<IpiQueue<ArchitectureImpl>>> = OneTimeInit::new();
 pub static CPU_COUNT: AtomicUsize = AtomicUsize::new(1);
 
-#[naked]
+#[unsafe(naked)]
 extern "C" fn idle_task(_: usize) -> ! {
-    unsafe {
-        core::arch::naked_asm!(
-            r#"
+    core::arch::naked_asm!(
+        r#"
             1:
                 nop
                 jmp 1b
             "#,
-            options(att_syntax)
-        );
-    }
+        options(att_syntax)
+    );
 }
 
 impl ArchitectureImpl {
diff --git a/userspace/graphics/colors/src/display.rs b/userspace/graphics/colors/src/display.rs
index 09051fe7..50f152e8 100644
--- a/userspace/graphics/colors/src/display.rs
+++ b/userspace/graphics/colors/src/display.rs
@@ -9,8 +9,7 @@ use std::{
 
 use crate::error::Error;
 
-pub struct Display<'a> {
-}
+pub struct Display<'a> {}
 
 pub struct Point<T>(pub T, pub T);
 
@@ -47,7 +46,7 @@ impl Display<'_> {
             let src_chunk = &source[src_offset..src_offset + w];
             let dst_chunk = &mut self.data[dst_offset..dst_offset + w];
 
-            dst_chunk.copy_from_slice(src_chunk);
+            dst_chunk.copy_nonoverlapping(src_chunk);
         }
 
         self.flush();
diff --git a/userspace/sysutils/src/ls.rs b/userspace/sysutils/src/ls.rs
index 23267496..f2731fa3 100644
--- a/userspace/sysutils/src/ls.rs
+++ b/userspace/sysutils/src/ls.rs
@@ -286,7 +286,6 @@ impl MetadataImpl for Metadata {
 }
 
 fn convert_file_time(time: SystemTime) -> chrono::DateTime<chrono::Utc> {
-    log::info!("time = {time:?}");
     let timestamp = time.duration_since(SystemTime::UNIX_EPOCH).unwrap();
     chrono::DateTime::from_timestamp(timestamp.as_secs() as _, 0).unwrap()
 }