Linux touchscreen auto-detection for vid_touchscreen - #6
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Keep the existing overlay behind vid_touchscreen, and derive it from vid_touchscreen_mode (off / auto / always) plus a touch-only filter so desktop players are unchanged while tablets and phones opt in.
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Summary
vid_touchscreen_mode(0 = off, 1 = auto, 2 = always) andvid_touchscreen_touchonly./proc/bus/input/devices, DMI chassis type, and Ubuntu Touch / Lomiri, then derivevid_touchscreenso desktop players stay on mouse/keyboard.SDL_FINGERDOWNbecause SDL often reports zero devices until a finger lands.This is the engine half of a Linux tablet port (Xonotic-Touch). The CSQC arena overlay stays out of this PR on purpose. Official development is on GitLab; this GitHub PR is so the patch is reviewable here as well. We will follow up on GitLab / Matrix
#dev:xonotic.org.Test plan
vid_touchscreenstays 0 with mode Auto.vid_touchscreen.vid_touchscreen_rescanreprints detection results.DP_MOBILETOUCH) still force Always.Made with Cursor