[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 #2 from Harry <ismail at inbox247.com> ---
This bugs hangs the CPU (as in not only the GPU)
The system has to be powered off with a 4-second power button press
It is clearly a kernel problem, does that mean it has to be drm?

I was reading over here:
https://01.org/linuxgraphics/documentation/how-report-bugs
- So I should use drm-intel-nightly
I can capture dmesg until halt on another networked machine
I am not sure if cat /sys/class/drm/card0/error will be possible since the cpu
halts?
(kernel options: drm.debug=0x1e log_buf_len=1M)

However, this is a MacBook Pro 2015 13", "everybody" has one.
And it's the latest 16.04 "everybody" has that, too

cpu/gpu: i5-5287U CPU @ 2.90GHz
Two displays via two DisplayPort cables
- it crashes with a single external display, too
- it does not crash without external displays

Running Weston from 16.04, it's 100% reproducible

uname --kernel-release --machine
4.4.0-21-generic x86_64

I am running KDE/X now, b/c that does not crash.

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