From: Pekka Paalanen <pekka.paala...@collabora.co.uk> The udev property WL_CALIBRATION is an old way of giving Weston a touchscreen calibration matrix. It is Weston-specific.
The recommended way of setting up a calibration is to use the udev property LIBINPUT_CALIBRATION_MATRIX, which libinput will load automatically and therefore applies to all libinput using display servers and applications. The syntax of WL_CALIBRATION and LIBINPUT_CALIBRATION_MATRIX is different as well: WL_CALIBRATION uses pixels as the translation part units, which makes the values depend on the output resolution. LIBINPUT_CALIBRATION_MATRIX on the other hand uses normalized units. Signed-off-by: Pekka Paalanen <pekka.paala...@collabora.co.uk> --- libweston/libinput-device.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libweston/libinput-device.c b/libweston/libinput-device.c index 48bfd6f1..64d99f75 100644 --- a/libweston/libinput-device.c +++ b/libweston/libinput-device.c @@ -500,6 +500,13 @@ evdev_device_set_calibration(struct evdev_device *device) udev_device_get_property_value(udev_device, "WL_CALIBRATION"); + if (calibration_values) { + weston_log("Warning: input device %s has WL_CALIBRATION property set. " + "Support for it will be removed in the future. " + "Please use LIBINPUT_CALIBRATION_MATRIX instead.\n", + sysname); + } + if (!calibration_values || sscanf(calibration_values, "%f %f %f %f %f %f", &calibration[0], -- 2.16.1 _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-devel