From ac502c921d2e813e6e916a589a07bc58ca4c12e7 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Fri, 9 Feb 2018 11:53:17 +1000
Subject: [PATCH] backends/x11: wacom pressure curve is a 32-bit property

The property has been 32 bits since around 2011 and has not changed, mutter
expects it to be 8 bits. The mismatch causes change_property to never
actually change the property.

https://gitlab.gnome.org/GNOME/mutter/issues/26

Closes: #26
---
 src/backends/x11/meta-input-settings-x11.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/backends/x11/meta-input-settings-x11.c b/src/backends/x11/meta-input-settings-x11.c
index 7d1d360a3..9687fb36f 100644
--- a/src/backends/x11/meta-input-settings-x11.c
+++ b/src/backends/x11/meta-input-settings-x11.c
@@ -813,9 +813,9 @@ meta_input_settings_x11_set_stylus_pressure (MetaInputSettings      *settings,
                                              ClutterInputDeviceTool *tool,
                                              const gint32            pressure[4])
 {
-  guchar values[4] = { pressure[0], pressure[1], pressure[2], pressure[3] };
+  guint32 values[4] = { pressure[0], pressure[1], pressure[2], pressure[3] };
 
-  change_property (device, "Wacom Pressurecurve", XA_INTEGER, 8,
+  change_property (device, "Wacom Pressurecurve", XA_INTEGER, 32,
                    &values, G_N_ELEMENTS (values));
 }
 
-- 
2.16.1

