video/utils/kmscon/patches, branch master

kmscon: wait for the splash, add unifont, depend on evdev

2026-10-07T07:23:38Z

Started while plymouth holds DRM master, kmscon retries taking it from a timer and logs a failure on every attempt. Its built-in 8x16 font covers the first 256 code points only, held in CP437 order while kmscon looks glyphs up by Unicode code point, so box drawing, block and braille characters come out wrong. The input event nodes it reads only exist with the evdev handler, which nothing pulled in. Do not start the instance while plymouth reports that it holds the display, and start it on the plymouth.release event the splash hands procd when it lets go. Build the GNU Unifont engine into a kmscon-mod-unifont package; its generator genunifont is packaged as a host build, and a patch lets meson use that one. The init script passes --font-engine only when one is configured, so kmscon falls through to unifont when the module is installed. GNU Unifont is dual-licensed under GPL-2.0-or-later with a font embedding exception and OFL-1.1; kmscon takes the font under OFL-1.1, so the module package carries that licence besides MIT. Depend on kmod-input-evdev. Fixes: 3c8ebee9b4f7 ("kmscon: depend on input-support for the evdev nodes") Signed-off-by: Daniel Golle

kmscon: make the libseat backend activate its seat

2026-10-03T15:57:13Z

The seat is enabled while libseat_open_seat() is still running, before uterm_vt_allocate() has installed the callbacks an activation needs, and whatever libseat has buffered is never dispatched because watching its fd for readability yields nothing. kmscon therefore stayed asleep with --libseat: no video device was initialised and the display stayed dark. Carry patches that dispatch libseat once from an idle callback and replay an enable that arrived too early, and that mark an unopened tty as -1 so the backend stops issuing VT ioctls on file descriptor 0. Signed-off-by: Daniel Golle

kmscon: add terminal emulator for KMS devices

2026-09-26T11:41:58Z

A system without a framebuffer console has no text console at all. kmscon draws a terminal straight onto a DRM device, through OpenGL ES where the GPU allows and in software on the same device otherwise. Device access goes through libseat, so the seat owns the drm device and the vt rather than kmscon reaching for both itself. That needs seatd, which is a small daemon and already starts before this service. Built without the fbdev backend and with the built-in PC screen font, so it needs neither pango nor freetype. The service is off until enabled, so it does not take the display from whatever else is using it. Two patches are carried. The first keeps the unifont generator, a native helper linked against zlib for the build machine, out of a build that has the unifont backend disabled, which otherwise breaks cross compilation. The second stops an error loop: a render-only drm node answers NULL to drmModeGetResources, which the hotplug path treated as an error and returned from the poll handler, so kmscon wrote 776 error lines in eighty seconds on a board where the GPU enumerates before the display controller. Signed-off-by: Daniel Golle