Linux 7.4 graphics updates bring AMDGPU HDMI 2.1 support and Intel Xe improvements

The Linux 7.4 kernel release includes significant updates to the Direct Rendering Manager (DRM) subsystem. Most notably, the AMDGPU driver now enables HDMI 2.1 Fixed Rate Link (FRL) by default, enabling higher resolutions and refresh rates alongside VRR and ALLM. Additionally, AMDGPU gains UALink over Ethernet support for data centers and NPU support for Ryzen AI Max 400 series processors. Intel Xe drivers receive performance optimizations and vRAM health monitoring, while the Nova driver continues its development using Rust.

Key DRM updates in Linux 7.4

• AMDGPU HDMI 2.1: Enables Fixed Rate Link (FRL) by default, supporting high-bandwidth features like VRR (Variable Refresh Rate) and ALLM (Auto Low Latency Mode).
• AMD Data Center & AI: Adds UALink over Ethernet (UALoE) support and provides NPU integration for the Ryzen AI Max 400 series (Gorgon Halo).
• Intel Xe Driver: Introduces CPU binds and ULLS in the migration queue for performance gains, plus vRAM health checks to manage degraded video memory.
• NVIDIA/Nova: Continued integration of Rust code for the upcoming Nova driver alongside maintenance for the Nouveau driver.
• Qualcomm & Rockchip: MSM DRM driver adds support for Adreno A830, A845, A850, and X2-85 GPUs, while Rockchip receives HDMI 2.0 improvements.

Why it matters

These updates significantly improve the high-end display experience for Linux users with AMD hardware and advance AI/data center capabilities. The continued shift toward Rust in NVIDIA-related drivers also signals a long-term trend toward memory-safe kernel graphics development.