A Linux user, Mike Lothian, tried to improve support for a Dell DisplayLink docking station after Synaptics’ proprietary Linux software repeatedly crashed. Synaptics distributes that software only as binaries for x86 systems, alongside the open-source EVDI kernel module. With help from an AI coding assistant, Lothian began Vino, a Rust-based DRM/KMS driver intended to control DisplayLink docks without the vendor’s software. He sought technical guidance from kernel developers and Synaptics, but received no help with the protocol problem blocking his work. After Vino began controlling three generations of docks, Synaptics alleged that it implemented patented technology.
Synaptics first warned Lothian, then demanded he stop development, withdraw his code and submissions, and identify where they had been shared. Its legal counsel later supplied claim charts for two UK patents and threatened to seek $25,000, increasing by $25,000 each week, if Lothian did not comply. Lothian asked for specific evidence and raised his membership in the Open Invention Network, of which Synaptics is also a member. OIN concluded its Linux protections did not cover the relevant codec technology; Synaptics said DisplayLink itself was not an OIN member. The dispute leaves independent Linux support for these docks under legal pressure, while users remain dependent on Synaptics’ software and its limitations.
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