Random flickering/noise effects in some application
Hello, since I switched to GNOME on Wayland, I started having this issue. It happened randomly, and mostly when the cursor was near the bottom of the screen. Since it is kinda random and limited to a small region, and taking screenshots not always captured it, I never bothered reporting. Today I found an application that is producing it consistently, therefore I could provide many information about it.
The issue is visible in these screenshot: one comes from Epiphany, that was the first application I ever notice having this issue on its entire surface instead of being limited to the lower part of the screen, the other is servo/webrender, which I was testing today and it is showing this issue very often.
I am reporting this issue to Mutter(+Wayland) because:
- I never experienced this issue before switching to Wayland, and I was using GNOME earlier;
- drivers (Intel) did not change when I performed the switch to Wayland and the problem was not visible earlier;
- this issue is not visible in GNOME with X11;
- I never experienced this issue while on Winston.
The driver I am using is Intel i915 on Skylake GT2.