Index: gdm-41.alpha/data/61-gdm.rules.in
===================================================================
--- gdm-41.alpha.orig/data/61-gdm.rules.in
+++ gdm-41.alpha/data/61-gdm.rules.in
@@ -8,3 +8,13 @@ SUBSYSTEM=="drm", KERNEL=="card[1-9]*",
 ACTION=="add", SUBSYSTEM=="module", KERNEL=="nvidia_drm", ATTR{parameters/modeset}=="N", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
 # disable Wayland if modesetting is disabled
 IMPORT{cmdline}="nomodeset", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
+# disable Wayland on Matrox Electronics Systems Ltd. MGA G200 server engines
+ATTR{vendor}=="0x102b", ATTR{device}=="0x0522", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
+ATTR{vendor}=="0x102b", ATTR{device}=="0x0524", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
+ATTR{vendor}=="0x102b", ATTR{device}=="0x0530", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
+ATTR{vendor}=="0x102b", ATTR{device}=="0x0532", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
+ATTR{vendor}=="0x102b", ATTR{device}=="0x0533", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
+ATTR{vendor}=="0x102b", ATTR{device}=="0x0534", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
+ATTR{vendor}=="0x102b", ATTR{device}=="0x0536", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
+ATTR{vendor}=="0x102b", ATTR{device}=="0x0538", RUN+="@libexecdir@/gdm-runtime-config set daemon WaylandEnable false"
+