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--- linux:graphics [2020/08/31 12:53] – created Wuff
+++ linux:graphics [2026/05/13 13:03] (current) – Wuff
@@ Line 8: / Line 8: @@
 https://www.askwoody.com/forums/topic/mesa-20-arrives-good-news-for-intel-graphics-users-on-linux/
+<code>
+sudo vi /etc/modprobe.d/i915.conf
+</code>
+<code>
+options i915 enable_guc=0 enable_fbc=1 enable_dc=0 enable_dp_mst=1
+#options i915 enable_dc=1 enable_guc=2
+#enable_fbc = enable frame buffer compression reduces power consumption
+#enable_dp_mst = 1 enable DisplayPort MST (Multi-Stream Transport) for multi-monitor support
+#enable_guc = 2
+#enable_dc = 1
+</code>
+<code>
+sudo update-initramfs -u
+sudo update-grub
+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.