[Bug 95064] Mouse Cursor halts CPU for multiple display configurations i915 i5-5287U

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95064

--- Comment #10 from Harry <ismail at inbox247.com> ---
I did some tests and concluded that setting kernel command line parameter
i915.enable_rc6=0
made Wayland not crash anymore
- it appears acceleration is then off in Wayland
- GNOME 3.18/Wayland crashed within minutes

the setting can be checked:
cat /sys/module/i915/parameters/enable_rc6
0

documentation:
modinfo i915 | less

rC-state is from ACPI, c0 is power on, c6 is deep power down, possibly off.

had no effect:
intel_idle.max_cstate=1
intel_pstate=disable

was already set:
for g in /sys/devices/system/cpu/cpu[0-9]/cpufreq/scaling_governor; do   echo
powersave > $g;   echo cpu$i: $(cat $g);   ((i++)); done

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