From 031ef0a5310bedd260aeb1a92c5b74ff7417a0d7 Mon Sep 17 00:00:00 2001
From: Martin Whitaker <mageia@martin-whitaker.me.uk>
Date: Sat, 14 Jan 2017 20:47:39 +0000
Subject: Disable Wayland in GDM when nowayland option is detected on boot
 cmdline.

Unless Wayland fails catastrophically, GDM doesn't fall back to Xorg
automatically. This provides a way to force the use of Xorg.
---
 config/live.cfg                          |  2 +-
 files/50gdm-disable-wayland.xsetup       | 20 ++++++++++++++++++++
 files/50gdm-nokms-disable-wayland.xsetup |  6 ------
 3 files changed, 21 insertions(+), 7 deletions(-)
 create mode 100755 files/50gdm-disable-wayland.xsetup
 delete mode 100755 files/50gdm-nokms-disable-wayland.xsetup

diff --git a/config/live.cfg b/config/live.cfg
index 1509992..e836a0d 100644
--- a/config/live.cfg
+++ b/config/live.cfg
@@ -40,7 +40,7 @@ my $_l = {
 		# enable root access to display to allow MCC and draklive-install to be run from the desktop
 		[ 'files/gnome-enable-root-gui.desktop', '/etc/xdg/autostart/gnome-enable-root-gui.desktop', { mode => 0644 } ],
 		# disable Wayland when we know it won't work (workaround for mga#20079)
-		[ 'files/50gdm-nokms-disable-wayland.xsetup', '/etc/X11/xsetup.d/50gdm-nokms-disable-wayland.xsetup', { mode => 0755 } ],
+		[ 'files/50gdm-disable-wayland.xsetup', '/etc/X11/xsetup.d/50gdm-disable-wayland.xsetup', { mode => 0755 } ],
             ),
             # blacklist pata_acpi
             [ 'files/blacklist_ide.conf', '/etc/modprobe.d/blacklist_ide.conf', { mode => 0644 } ],
diff --git a/files/50gdm-disable-wayland.xsetup b/files/50gdm-disable-wayland.xsetup
new file mode 100755
index 0000000..dbfa33e
--- /dev/null
+++ b/files/50gdm-disable-wayland.xsetup
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+disable=0
+
+# disable Wayland if the user asks us to.
+if /bin/grep -q nowayland /proc/cmdline; then
+    disable=1
+fi
+
+# nokmsboot implies we are using a driver that won't work with Wayland,
+# which prevents autologin working (mga#20079).
+if [ -e /run/mgalive ]; then
+    if /bin/grep -q nokmsboot /proc/cmdline; then
+	disable=1
+    fi
+fi
+
+if [ $disable -eq 1 -a -f /etc/X11/gdm/custom.conf ]; then
+    sed -i 's/#WaylandEnable=false/WaylandEnable=false/' /etc/X11/gdm/custom.conf
+fi
diff --git a/files/50gdm-nokms-disable-wayland.xsetup b/files/50gdm-nokms-disable-wayland.xsetup
deleted file mode 100755
index 6232353..0000000
--- a/files/50gdm-nokms-disable-wayland.xsetup
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/sh
-if [ -e /run/mgalive -a -f /etc/X11/gdm/custom.conf ]; then
-    if /bin/grep -q nokmsboot /proc/cmdline; then
-	sed -i 's/#WaylandEnable=false/WaylandEnable=false/' /etc/X11/gdm/custom.conf
-    fi
-fi
-- 
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