Hi Stephan,

Thanks to your efforts and the provided patch I have been able to create
a fix for own xorg-server version:
https://github.com/OpenIndiana/oi-userland/pull/9858
as our server is still on 1.19.7 while the patch is for a newer 1.21.1
version an adaption was needed.

My desktop is already running on a newer NVIDIA driver with this patched
xorg.

Regards,
Andreas

Am 11.11.22 um 09:38 schrieb Stephan Althaus:
Hello!

After a little bit of looking around, i think it could be relatated to
a bug that occured first with 495.

Solutions are

1) to disable the compositing-Manager withing mate

[org.mate.Marco.general]
compositing-manager=false

or

gsettings set org.mate.Marco.general compositing-manager false

2) a patch for xorg.server. The proposed patch to present_scmd.c could
be modified to match present.c in OI-userland...

--- a/present/present_scmd.c    2022-02-08 09:38:39.322128250 +0100
+++ b/present/present_scmd.c    2022-02-08 09:40:30.205857503 +0100
@@ -167,6 +167,9 @@
 {
     if (!screen_priv->info)
         return NULL;
+
+    if (!screen_priv->info->get_crtc)
+        return NULL;

     return (*screen_priv->info->get_crtc)(window);
 }
@@ -205,6 +208,9 @@

     if (!screen_priv->info)
         return;
+
+    if (!screen_priv->info->flush)
+        return;

     (*screen_priv->info->flush) (window);
 }


i will check 1) when i have the time to reboot,
maybe 2) in the next days..


Stephan
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