This error keep showing on kde. I'm not sure but it causes a weird display failure (the display gets intermittent when closing)

dmsg :

[ 8714.848666] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
[ 8714.849192] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
[ 8714.849345] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
[ 8714.849766] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
[ 8714.850185] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
[ 8714.850605] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
[ 8714.851067] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
[ 8714.851216] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
[ 8714.851360] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!

any idea about it ?

https://bugs.freedesktop.org/show_bug.cgi?id=92084

> the display gets intermittent when closing

Humm? You mean after re-opening it?
Does "closing the display" also suspend to ram?
Does suspending the compositor (SHIFT+Alt+F12, same shortcut to resume) clear the stage in such case?