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--- linux:graphics [2021/02/14 23:15] – Wuff
+++ linux:graphics [2026/05/13 13:03] (current) – Wuff
@@ Line 26: / Line 26: @@
 sudo reboot
 </code>
+===== Static after resume from sleep =====
+If displays show static pixel flickering after resuming from sleep, they did not reinitialise properly. This can be addressed immediately using the command:
+<code>
+xset dpms force suspend && xset dpms force on
+</code>
+and optionally disabling Panel Self Refresh (PSR) is said to cause this. This can be disabled by adding
+<code>i915.enable_psr=0</code> to your kernel boot parameters in /etc/default/grub.