Bootlin attended the Linux Display Next Hackfest 2026 in Nice, France, and presented four areas of upstream Linux graphics work. Key topics included: a race condition between DisplayPort link training and firmware updates (proposing an ioctl-based locking mechanism), DRM bridge hotplug support with refcounting and architecture discussions, backlight configuration challenges around standardization and synchronization, and DisplayPort status properties to expose link capabilities to userspace via sysfs. Each topic generated productive community feedback with clear next steps for implementation refinement.
Table of contents
Link training and firmware update conflicts [ slides ]DRM Bridge hotplug [ slides ]Backlight configurationDisplayPort Status Properties [ slides ]574 Impressions