[Bug 73951] [Bay Trail-I HPD] Hot plug detection doesn't work with Display Port

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73951

--- Comment #16 from Kenta Ueda <kenta.ueda at intel.com> ---
Thanks.
I tried drm-intel kernel commit:acd7e92bd669fbd86797cb763ded6b4980db7a62.
This compile was complete. But system freeze was occurred on my BayTrail-I
board.
For 3.13.0-6-generic (Ubuntu 14.04 releases) kernel, this issue is not
occurred.
I found similar phenomenon report
(http://comments.gmane.org/gmane.linux.kernel/1608974).
According to the report, this issue relates to drivers/cpufreq/intel_pstate.c.
But I cannot find any difference of drivers/cpufreq/intel_pstate.c between
drm-intel kernel and Ubuntu 14.04 released.

Did you test this fixed kernel on your side with BayTrail-I system?
I tried the drm-intel kernel on Ivy Bridge environment. The system could boot
without the system freeze.
Thanks.

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