On Tuesday, June 20th, 2023 at 20:58, Sam Ravnborg <sam@xxxxxxxxxxxx> wrote: > On Tue, Jun 20, 2023 at 05:55:09PM +0000, Simon Ser wrote: > > > This adds more information to the hotplug uevent and lets user-space > > know that it's about a particular connector only. > > Will this change have impact on user space? > They will start to see CONNECTOR=n where they did not occur before. > Asking as I have not really worked with the hotplug stuff. Yes. CONNECTOR is an optional udev event property indicating that only the specified connector has changed. User-space unaware of this property will just ignore it. User-space aware of this property will only refresh information about the connector instead of the whole device. A few months back, we've converted calls to drm_kms_helper_connector_hotplug_event() in amdgpu and the DRM DP helper.
