[Bug 98912] [SKL] ext. HDMI hotplug not working on i7-6700HQ laptop

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Nov 30 17:17:39 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=98912

--- Comment #7 from raptorteak at gmail.com ---
$ sudo i2cdump -y 4 0x40 i
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 44 50 2d 48 44 4d 49 20 41 44 41 50 54 4f 52 04    DP-HDMI ADAPTOR?
10: a8 00 1c f8 50 53 31 37 35 30 b0 00 00 78 0f 00    ?.??PS1750?..x?.
20: 00 00 08 00 00 00 00 00 00 00 00 00 00 00 00 00    ..?.............
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
40: 01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ??..............
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

Looks like you are right about the adapter. However, drm-tip didn't do the
trick :< . Unless there is a specific config to enable ?

Above is a newer dmesg from the drm-tip run.

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