Embedded Technology
technologies like NVIDIA’s G-SYNC and AMD’s FreeSync that synchronize display refresh rates with GPU output via direct communication. For users demanding high-fidelity graphics and compute-intensive tasks like professional content creation or CAD work, GPU-dependent solutions like Thunderbolt are preferred. On the other hand, GPU-agnostic technologies provide greater flexibility for most users. DisplayLink stands out among GPU-agnostic technologies due to its unique features. Central to DisplayLink’s approach is the integration of specialized hardware within docking stations and advanced software on host devices. This combination facilitates the conversion of video data into a format suitable for transmission over standard interfaces like USB or Wi-Fi. The software collaborates with the chipset to manage video data compression effectively, optimizing transmission efficiency while preserving visual quality. Additionally, DisplayLink’s intelligent bandwidth management system utilizes dynamic compression for improved performance. The system continuously monitors and adjusts its compression algorithms to optimize data transfer based on the available bandwidth and connected devices’ requirements. While GPU-dependent technologies are incorporating
Figure 2: Technologies such as DisplayLink are GPU agnostic and avoid congestion by using data compression while also only sending refresh data to the screens that are changing (right). (Image source: Synaptics)
some compression at higher resolutions/ refresh rates, they lack dynamic and content- aware capabilities, leading to inefficient bandwidth utilization.
DisplayLink features advantages such as compatibility with industry-standard protocols like USB and Wi-Fi, making it functional across devices manufactured in the last decade. Unlike GPU-specific solutions requiring USB-C or Thunderbolt, DisplayLink offers scalability by providing a variety of compression
capabilities that can be easily adjusted to meet changing user demands.
With dynamic compression adapting to varying setups and needs, DisplayLink allows for flexibility in adding multiple monitors. In contrast, GPU-dependent solutions are constrained by bandwidth limitations. Additionally, DisplayLink’s GPU-agnostic technology enables expanded functionalities, like setting up dual displays on MacBooks traditionally limited to one external monitor.
For product developers in the video connectivity space, adopting GPU- agnostic technologies such as DisplayLink means delivering a reliable solution to IT professionals and end users that ensures ease of use and readiness to meet current and future display connectivity needs amidst the complex landscape of multi-monitor technologies.
https://www.synaptics.com/
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Components in Electronics
July/August 2024 41
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